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Assigning event handlers in JavaScript using DOM object property
 
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Link for all dot net and sql server video tutorial playlists http://www.youtube.com/user/kudvenkat/playlists Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2015/01/assigning-event-handlers-in-javascript.html In JavaScript there are several ways to associate an event handler to the event. In Part 36, we discussed, associating event handler methods to events using the attributes of HTML tags. In this video we will discuss using DOM object property to assign event handlers to events. First let us understand, what is DOM DOM stands for Document Object Model. When a browser loads a web page, the browser creates a Document Object Model of that page. The HTML DOM is created as a tree of Objects. Example : [html] [head] [title]My Page Title[/title] [/head] [body] [script type="text/javascript"] [/script] [div] [h1]This is browser DOM[/h1] [/div] [/body] [/html] JavaScript can be used to access and modify these DOM objects and their properties. For example, you can add, modify and remove HTML elements and their attributes. Along the same lines, you can use DOM object properties to assign event handlers to events. We will discuss the DOM object in detail in a later video session. We will continue with the same examples that we worked with in Part 36. Notice that in this case, we are assigning event handlers using the DOM object properties (onmouseover & onmouseout) instead of using the attributes of the HTML tag. We are using this keyword to reference the current HTML element. In this example "this" references the button control. [input type="button" value="Click me" id="btn"/] [script type="text/javascript"] document.getElementById("btn").onmouseover = changeColorOnMouseOver; document.getElementById("btn").onmouseout = changeColorOnMouseOut; function changeColorOnMouseOver() { this.style.background = 'red'; this.style.color = 'yellow'; } function changeColorOnMouseOut() { this.style.background = 'black'; this.style.color = 'white'; } [/script] The following example is same as the above. In this case we are assigning an anonymous function to onmouseover & onmouseout properties. [input type="button" value="Click me" id="btn" /] [script type="text/javascript"] document.getElementById("btn").onmouseover = function () { this.style.background = 'red'; this.style.color = 'yellow'; } document.getElementById("btn").onmouseout = function () { this.style.background = 'black'; this.style.color = 'white'; } [/script] If an event handler is assigned using both, i.e an HTML attribute and DOM object property, the handler that is assigned using the DOM object property overwrites the one assigned using HTML attribute. Here is an example. [input type="button" value="Click me" id="btn" onclick="clickHandler1()"/] [script type="text/javascript"] document.getElementById("btn").onclick = clickHandler2; function clickHandler1() { alert("Handler set using HTML attribute"); } function clickHandler2() { alert("Handler set using DOM object property"); } [/script] Using this approach you can only assign one event handler method to a given event. The handler that is assigned last wins. In the following example, Handler2() is assigned after Handler1. So Handler2() owerites Handler1(). [input type="button" value="Click me" id="btn"/] [script type="text/javascript"] document.getElementById("btn").onclick = clickHandler1; document.getElementById("btn").onclick = clickHandler2; function clickHandler1() { alert("Handler 1"); } function clickHandler2() { alert("Handler 2"); } [/script]
Views: 50532 kudvenkat
jQuery Basics: Click Event Handler
 
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Want more? Explore the library at https://www.codecourse.com/lessons Official site https://www.codecourse.com Twitter https://twitter.com/teamcodecourse
Views: 31115 Codecourse
JavaScript Tutorial For Beginners #40 - The onClick Event
 
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Hey ninjas / ninjarettes, in this JavaScript tutorial I want to run through a detailed example of how we can use the onclick event in JavaScript to create cool functionality on our websites. In this example I'll use the onclick event to create a 'show more' style content box which expands and shrinks as you click the button. Any questions, fire away :). SUBSCRIBE TO CHANNEL - https://www.youtube.com/channel/UCW5YeuERMmlnqo4oq8vwUpg?sub_confirmation=1 ========== JavaScript for Beginners Playlist ========== https://www.youtube.com/playlist?list=PL4cUxeGkcC9i9Ae2D9Ee1RvylH38dKuET ========== CSS for Beginners Playlist ========== https://www.youtube.com/playlist?list=PL4cUxeGkcC9gQeDH6xYhmO-db2mhoTSrT ========== HTML for Beginners Playlist ========== https://www.youtube.com/playlist?list=PL4cUxeGkcC9ibZ2TSBaGGNrgh4ZgYE6Cc ========== The Net Ninja ============ For more front-end development tutorials & to black-belt your coding skills, head over to - https://www.youtube.com/channel/UCW5YeuERMmlnqo4oq8vwUpg or http://thenetninja.co.uk ========== Social Links ========== Twitter - @TheNetNinja - https://twitter.com/thenetninjauk
Views: 78036 The Net Ninja
Angular 6 Basics 17 - Handling click events
 
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Access the full course here: https://javabrains.io/courses/angular_basics We'll now implement some interactivity by adding a button and having its click event trigger showing and hiding of a div. You'll learn how to wire in member methods to be executed on user events and how you can affect component state with them. Angular 6 Basics - Learn how to create Angular applications from scratch. Understand the Angular framework and learn how to use the features of the framework to create components and services. Use modules to organize your code. Build applications that call REST APIs and fetch data from a server. Implement routing to show multiple views with multiple URLs. This course requires no previous knowledge of Angular or AngularJS.
Views: 24076 Java Brains
Passing data to event handler in jQuery
 
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Link for all dot net and sql server video tutorial playlists https://www.youtube.com/user/kudvenkat/playlists?sort=dd&view=1 Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2015/04/passing-data-to-event-handler-in-jquery.html In this video we will discuss how to pass data to the event handler function in jQuery The following example, 1. Binds the click event handler to the button using on function 2. We are passing 3 arguments to the on() function a) The name of the event b) JSON object that contains data that we want to pass to the event handler c) Event handler method name 3. In the event handler method (sayHello), we access the data using event object's data property. Replace < with LESSTHAN symbol and > with GREATERTHAN symbol <html> <head> <title></title> <script src="jquery-1.11.2.js"></script> <script type="text/javascript"> $(document).ready(function () { $('#btnClickMe').on('click', { firstName: 'John', lastName: 'Doe' }, sayHello); $('#btnClickMe').on('click', { firstName: 'Mary' }, sayHello); $('#btnClickMe').on('click', sayHello); function sayHello(event) { if (event.data == null) { alert('No name provided'); } else { alert('Hello ' + event.data.firstName + (event.data.lastName != null ? ' ' + event.data.lastName : '')); } } }); </script> </head> <body style="font-family:Arial"> <input id="btnClickMe" type="button" value="Click Me" /> </body> </html> Output : Hello John Doe Hello Mary No name provided
Views: 38754 kudvenkat
Events in JavaScript
 
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Link for all dot net and sql server video tutorial playlists http://www.youtube.com/user/kudvenkat/playlists Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2015/01/events-in-javascript.html What is an event An event is a signal from the browser that something has happened. For example, 1. When a user clicks on an HTML element, click event occurs 2. When a user moves the mouse over an HTML element, mouseover event occurs When events occur, we can execute JavaScript code or functions in response to those events. To do this we need to associate JavaScript code or functions to the events. The function that executes in response to an event is called event handler. In JavaScript, there are several ways to associate an event handler to the event 1. Using the attributes of an HTML tag 2. Using DOM object property 3. Using special methods In this video we will discuss associating event handler methods to events using the attributes of HTML tags. In the following example, the code to execute in response to onmouseover & onmouseout events is set directly in the HTML markup. The keyword "this" references the current element. In this example "this" references the button control. [input type="button" value="Click me" id="btn" onmouseover="this.style.background= 'red'; this.style.color = 'yellow'" onmouseout="this.style.background= 'black'; this.style.color = 'white'" /] The above example, can be rewritten as shown below. In this case the code to execute in response to the event is placed inside a function and then the function is associated with the event. [input type="button" value="Click me" id="btn" onmouseover="changeColorOnMouseOver()" onmouseout="changeColorOnMouseOut()" /] [script type="text/javascript"] function changeColorOnMouseOver() { var control = document.getElementById("btn"); control.style.background = 'red'; control.style.color = 'yellow'; } function changeColorOnMouseOut() { var control = document.getElementById("btn"); control.style.background = 'black'; control.style.color = 'white'; } [/script] Events are very useful in real-world applications. For example they can be used to 1. Display confirmation dialog box on submitting a form 2. Form data validation and many more How to show confirmation dialog in JavaScript [input type="submit" value="Submit" id="btn" onclick="return confirmSubmit()" /] [script type="text/javascript"] function confirmSubmit() { if (confirm("Are you sure you want to submit")) { alert("You selected OK"); return true; } else { return false; confirm("You selected cancel"); } } [/script] JavaScript form validation example : In this example, both First Name and Last Name fields are required fields. When you type the first character in any of the textbox, the background colour is automatically changed to green. If you delete all the characters you typed or if you leave the textbox without entering any characters the background colour changes to red indicating the field is required. We made this possible using onkeyup and onblur events. onkeyup occurs when the user releases a key. onblur occurs when an element loses focus. [table] [tr] [td] First Name [/td] [td] [input type="text" id="txtFirstName" onkeyup="validateRequiredField('txtFirstName')" onblur="validateRequiredField('txtFirstName')"/] [/td] [/tr] [tr] [td] Last Name [/td] [td] [input type="text" id="txtLastName" onkeyup="validateRequiredField('txtLastName')" onblur="validateRequiredField('txtLastName')"/] [/td] [/tr] [/table] [script type="text/javascript"] function validateRequiredField(controlId) { var control = document.getElementById(controlId); control.style.color = 'white'; if (control.value == "") { control.style.background = 'red'; } else { control.style.background = 'green'; } } [/script]
Views: 68282 kudvenkat
Angular 2 for Beginners - Tutorial 9 - Click Event Handling
 
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Facebook - https://www.facebook.com/TheNewBoston-464114846956315/ GitHub - https://github.com/buckyroberts Google+ - https://plus.google.com/+BuckyRoberts LinkedIn - https://www.linkedin.com/in/buckyroberts reddit - https://www.reddit.com/r/thenewboston/ Support - https://www.patreon.com/thenewboston thenewboston - https://thenewboston.com/ Twitter - https://twitter.com/bucky_roberts
Views: 61263 thenewboston
14 jQuery Event Handlers
 
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jQuery Event Handlers
Views: 50 VirtualAddiction
QuickTip #147 - CSS Tutorial - Unselectable Text | HTML | Style
 
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HTML CSS Style Tutorial: Make text unselectable. ↕↕↕↕↕↕↕↕↕↕↕↕↕↕Links↕↕↕↕↕↕↕↕↕↕↕↕↕↕ Amazon-Link: http://amzn.to/1yr6OdD Günstige Spiele: https://www.g2a.com/r/sawmyname Meine Buchempfehlungen: C#: http://amzn.to/1sW4Mdb Python: http://amzn.to/Zc3T9g CSS: http://amzn.to/1uhO4uy JavaScript: http://amzn.to/1mJNy6n Java: http://amzn.to/1pbGv1z Facebook: https://www.facebook.com/pages/Event-Handler/1495860210672727
Views: 95 Event Handler
QuickTip #157 - CSS Tutorial - Pseudo Element | HTML | style | after
 
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CSS HTML Tutorial: Pseudo Element after. |||||||||||||||||Links||||||||||||||||| Amazon-Link: http://amzn.to/1yr6OdD Günstige Spiele: https://www.g2a.com/r/sawmyname Meine Buchempfehlungen: C#: http://amzn.to/1sW4Mdb Python: http://amzn.to/Zc3T9g CSS: http://amzn.to/1uhO4uy JavaScript: http://amzn.to/1mJNy6n Java: http://amzn.to/1pbGv1z Facebook: https://www.facebook.com/pages/Event-Handler/1495860210672727
Views: 15 Event Handler
jQuery scroll event
 
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Link for all dot net and sql server video tutorial playlists https://www.youtube.com/user/kudvenkat/playlists?sort=dd&view=1 Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2015/05/jquery-scroll-event.html In this video we will discuss scroll event and how to handle it using jQuery. scroll event is raised when the user scrolls to a different place in the element. It applies to window objects, but also to scrollable frames and elements with the overflow CSS property set to scroll. In the following exampe, notice that the div element overflow style is set to scroll. The div element has a scrollbar and as you scroll up and down the div element, the scroll event is raised and handled. Replace < with LESSTHAN symbol and > with GREATERTHAN symbol <html> <head> <title></title> <script src="jquery-1.11.2.js"></script> <script type="text/javascript"> $(document).ready(function () { $('div').scroll(function () { $('h3').css('display', 'inline').fadeOut(1000); }); }); </script> </head> <body style="font-family:Arial"> <div style="width:300px; height:200px; border:1px solid black; overflow:scroll"> PRAGIM Speciality in training arena unlike other training institutions. Training delivered by real time software experts having more than 10 years of experience. Interview questions and real time scenarios discussion on topics covered for the day. Realtime projects discussion relating to the possible interview questions. Trainees can attend training and use lab untill you get a job. Resume preperation and mock up interviews. 100% placement assistance. 24 hours lab facility. PRAGIM Technologies offers professional real time projects for studetns in their final semester. Course completion and project completion certificates will also be provided upon successful completion of the course. We have partnered with major multinational companies to place freshers with our clients on their course completion. </div> <br /> <h3 style="display:none; color:red">Scroll event handled</h3> </body> </html> The following example, keeps track of how many times the scroll event is raised. <html> <head> <title></title> <script src="jquery-1.11.2.js"></script> <script type="text/javascript"> $(document).ready(function () { var count = 0; $('div').scroll(function () { $('span').text(count += 1); }); }); </script> </head> <body style="font-family:Arial"> <div style="width:300px; height:200px; border:1px solid black; overflow:scroll"> DIV CONTENT </div> <br /> <h3 style="color:red">Scroll event handled <span>0</span> time(s)</h3> </body> </html> The following example, keeps track of whether the user scrolled up or down. <html> <head> <script src="jquery-1.11.2.js"></script> <script type="text/javascript"> $(document).ready(function () { var lastScrollTop = 0; $('div').scroll(function () { var currentScrollPosition = $(this).scrollTop(); if (currentScrollPosition > lastScrollTop) { $('h3').text('You scrolled down'); } else { $('h3').text('You scrolled up'); } lastScrollTop = currentScrollPosition; }); }); </script> </head> <body style="font-family:Arial"> <div style="width:300px; height:200px; border:1px solid black; overflow:scroll"> DIV CONTENT </div> <br /> <h3 style="display:inline; color:red"></h3> </body> </html>
Views: 49127 kudvenkat
Javascript Tutorial | Event Handlers in Javascript
 
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Events are listening out for interactivity by the user. It also could include a change in state; for example you could trigger an event if the HTML5 video player was playing, paused or in the stop position. This allows us to create interactive pages and show, hide or update content to notify the user. This is why it's so important to understand events. This tutorial is brought to you by http://www.avelx.co.uk/ - Coding tutorials to help you grow.
Views: 24384 Avelx
Let's Show #130 - CSS Tutorial - Overlay Effect | HTML | Style
 
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CSS HTML Tutorial in dem ein Overlay Effect mit HTML und Style erzeugt wird. ⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓Links⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓⇓ Amazon-Link: http://amzn.to/1yr6OdD Günstige Spiele: https://www.g2a.com/r/sawmyname Meine Buchempfehlungen: C#: http://amzn.to/1sW4Mdb Python: http://amzn.to/Zc3T9g CSS: http://amzn.to/1uhO4uy JavaScript: http://amzn.to/1mJNy6n Java: http://amzn.to/1pbGv1z Facebook: https://www.facebook.com/pages/Event-Handler/1495860210672727
Views: 874 Event Handler
QuickTip #159 - CSS Tutorial - Calculate Style | HTML | Styles
 
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CSS HTML Tutorial: Calculate Styles. |||||||||||||||||Links||||||||||||||||| Amazon-Link: http://amzn.to/1yr6OdD Günstige Spiele: https://www.g2a.com/r/sawmyname Meine Buchempfehlungen: C#: http://amzn.to/1sW4Mdb Python: http://amzn.to/Zc3T9g CSS: http://amzn.to/1uhO4uy JavaScript: http://amzn.to/1mJNy6n Java: http://amzn.to/1pbGv1z Facebook: https://www.facebook.com/pages/Event-Handler/1495860210672727
Views: 27 Event Handler
Javascript Events Tutorial - How Web Developers Respond to User Input
 
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Simple Javascript Events Tutorial with code! Almost every Web Developer finds themselves needing to respond to user actions on a page by changing content or adjusting the page display somehow. The way you do that is by listening to Javascript events. VIEW THE CODE: - addition: http://codepen.io/anon/pen/vOeeqG?editors=101 - pic link: http://codepen.io/anon/pen/vxYxKN?editors=101 Popular Javascript Events Are: - click - mouseenter - mouseleave - mousedown - mouseup - mousemove - keydown - keyup - blur - focus See list of all javascript events here: https://developer.mozilla.org/en-US/docs/Web/Events In this lesson, we'll add event listeners to html elements. When the users click, focus, blur, press a key, or move their mouse, javascript will get notified and we can make the webpage change. Listening to Javascript events is a bread and butter task for web development and web developers. -~-~~-~~~-~~-~- Learning Web Development? Watch the FREE COURSE: "Web Development for Absolute Beginners"! https://www.youtube.com/watch?v=gQojMIhELvM -~-~~-~~~-~~-~-
Views: 215065 LearnCode.academy
QuickTip #156 - CSS Tutorial - Pseudo Element | HTML | before | style
 
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CSS HTML Style Tutorial: Pseudo Element before. |||||||||||||||||Links||||||||||||||||| Amazon-Link: http://amzn.to/1yr6OdD Günstige Spiele: https://www.g2a.com/r/sawmyname Meine Buchempfehlungen: C#: http://amzn.to/1sW4Mdb Python: http://amzn.to/Zc3T9g CSS: http://amzn.to/1uhO4uy JavaScript: http://amzn.to/1mJNy6n Java: http://amzn.to/1pbGv1z Facebook: https://www.facebook.com/pages/Event-Handler/1495860210672727
Views: 24 Event Handler
Event bubbling in JavaScript
 
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Link for all dot net and sql server video tutorial playlists http://www.youtube.com/user/kudvenkat/playlists Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2015/01/event-bubbling-in-javascript.html What is event bubbling Let us understand this with an example. HTML elements can be nested inside each other. For example a button element can be nested inside a span element and the span element inturn can be nested inside a div element. Notice that we have onclick attribute specified for all the 3 elements. [html] [head] [style type="text/css"] .styleClass { display: table-cell; border: 1px solid black; padding: 20px; text-align: center; } [/style] [/head] [body] [div class="styleClass" onclick="alert('Div click handler')"]DIV element [span class="styleClass" onclick="alert('Span click handler')"]Span element [input type="button" value="Click me" onclick="alert('Button click handler')" /] [/span] [/div] [/body] [/html] A click on the button, causes a click event to be fired on the button. The button click event handler method handles the event. The click event then bubbles up to the button element parent (span element), which is handled by the span element event handler method. The click event then bubbles up to the span element parent (div element). This is called event bubbling. Notice that if you click on the [span] element, it's event handler and it's parent([div]) element event handler are called. If you click on the [div] element, just the [div] element event handler method is called. So, the event bubbling process starts with the element that triggered the event and then bubbles up to the containing elements in the hierarchy. The following example is similar to the one above, except we removed the onclick attribute from button and span elements. Because of event bubbling, when you click on the button or the span element, the event gets handled by the div element handler. [html] [head] [style type="text/css"] .styleClass { display: table-cell; border: 1px solid black; padding: 20px; text-align: center; } [/style] [/head] [body] [div class="styleClass" onclick="alert('Click event handled by DIV element')"]DIV element [span class="styleClass"]Span element [input type="button" value="Click me"/] [/span] [/div] [/body] [/html] When the event gets bubbled, the keyword this references the current element to which the event is bubbled. In the example below, we are using "this" keyword to reference the current div element and change it's border color. When you click on the innermost [div] element, all the 3 [div] elements border get changed due to event bubbling. [html] [head] [style type="text/css"] .divStyle { display: table-cell; border: 5px solid black; padding: 20px; text-align: center; } [/style] [/head] [body] [div id="DIV1" class="divStyle"] DIV 1 [div id="DIV2" class="divStyle"] DIV 2 [div id="DIV3" class="divStyle"] DIV 3 [/div] [/div] [/div] [script type="text/javascript"] var divElements = document.getElementsByTagName('div'); for (var i = 0; i [ divElements.length; i++) { divElements[i].onclick = function () { this.style.borderColor = "red"; alert(this.getAttribute("id") + " backgound changed"); } } [/script] [/body] [/html] Stopping event bubbling : If you don't want the event to be bubbled up, you can stop it. With Internet Explorer 8 and earlier versions event.cancelBubble = true With Internet Explorer 9 (and later versions) & all the other browsers event.stopPropagation()
Views: 52879 kudvenkat
Beginner JavaScript Tutorial - 22 - Event Handlers
 
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Facebook - https://www.facebook.com/TheNewBoston-464114846956315/ GitHub - https://github.com/buckyroberts Google+ - https://plus.google.com/+BuckyRoberts LinkedIn - https://www.linkedin.com/in/buckyroberts reddit - https://www.reddit.com/r/thenewboston/ Support - https://www.patreon.com/thenewboston thenewboston - https://thenewboston.com/ Twitter - https://twitter.com/bucky_roberts
Views: 308458 thenewboston
React Native tutorial-9-Handling touches
 
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This video show you how to handle touches in React Native: - Set onPress props of a Button and assign an arrow function when touch to the button. - Handling touches with Touchablehighlight, TouchableOpacity, TouchableNativeFeedback(only work with Android devices),TouchableWithoutFeedback. SUBSCRIBE TO MY CHANNEL FOR MORE INTERESTING VIDEOS: https://www.youtube.com/c/NguyenDucHoang Twitter: https://twitter.com/NguyenD97601913 Facebook: https://www.facebook.com/nguyen.duc.hoang.bk
Views: 4281 Nguyen Duc Hoang
QuickTip #160 - CSS Tutorial - Media Property | HTML | Style
 
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CSS HTML Style Tutorial: Media Property. |||||||||||||||||Links||||||||||||||||| Amazon-Link: http://amzn.to/1yr6OdD Günstige Spiele: https://www.g2a.com/r/sawmyname Meine Buchempfehlungen: C#: http://amzn.to/1sW4Mdb Python: http://amzn.to/Zc3T9g CSS: http://amzn.to/1uhO4uy JavaScript: http://amzn.to/1mJNy6n Java: http://amzn.to/1pbGv1z Facebook: https://www.facebook.com/pages/Event-Handler/1495860210672727
Views: 30 Event Handler
Binding event handlers using jquery on method
 
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Link for all dot net and sql server video tutorial playlists https://www.youtube.com/user/kudvenkat/playlists?sort=dd&view=1 Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2015/04/binding-event-handlers-using-jquery-on.html In this video we will discuss binding event handlers to events using on() method in jQuery In Part 33 of jQuery Tutorial, we discussed how to bind event handlers using bind() method. If you are using jQuery 1.7 or higher, you should be using on() and off() methods instead of bind() and unbind() methods. The syntax for using on() and off() methods is very similar to using bind() and unbind() methods. The following example is the same example we worked with in Part 33. Instead of using bind() and unbind() we are using on() and off() methods. Replace < with LESSTHAN symbol and > with GREATERTHAN symbol <html> <head> <title></title> <style> .ButtonStyle { background-color: red; cursor: pointer; font-weight: bold; color: white; } </style> <script src="jquery-1.11.2.js"></script> <script type="text/javascript"> $(document).ready(function () { $('#btnClickMe').on('click mouseover mouseout', function (event) { if (event.type == 'click') { $('#divResult').html('Button Clicked at ' + 'X = ' + event.pageX + ' Y = ' + event.pageY); } else if (event.type == 'mouseover') { $(this).addClass('ButtonStyle'); } else { $(this).removeClass('ButtonStyle'); } }); $('#btnEnableMouseOverEffect').click(function () { $('#btnClickMe').on('mouseover', function () { $(this).addClass('ButtonStyle'); }); }); $('#btnDisableMouseOverEffect').click(function () { $('#btnClickMe').off('mouseover'); }); }); </script> </head> <body style="font-family:Arial"> <input id="btnClickMe" type="button" value="Click Me" /> <input id="btnEnableMouseOverEffect" type="button" value="Enable Mouse Over Effect" /> <input id="btnDisableMouseOverEffect" type="button" value="Disable Mouse Over Effect" /> <br /><br /> <div id="divResult"></div> </body> </html> In the example above we are binding a single anonymous function as the event handler for all the 3 events 1. click 2. mouseover 3. mouseout If you want to bind a different anonymous function, you could do so using the following syntax. $('#btnClickMe').bind({ click : function(event){ $('#divResult').html('Button clicked at X = ' + event.pageX + ' Y = ' + event.pageY); }, mouseover: function () { $(this).addClass('ButtonStyle'); }, mouseout : function () { $(this).removeClass('ButtonStyle'); } }); jQuery shorthand functions (.click, .mouseover, .mouseout etc.) call on() method behind the scenes. So far in this video series we have seen 3 different ways of binding event handlers in jQuery 1. Using jQuery shorthand functions (.click, .mouseover, .mouseout etc.) element.click(function () { ... }); 2. With jQuery version < 1.7, bind() method can be used element.bind('click', function () { ... }); 3. With jQuery version 1.7 or higher, on() method can be used. element.on('click', function () { ... }); According to jQuery.com, as of jQuery 1.7, the .on() method is the preferred method for attaching event handlers.
Views: 34209 kudvenkat
WPF - Attach single click event handler with multiple buttons
 
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This demonstration shows that how a single event handler can be used for multiple controls instead of having separate event handler for each control. Invoker of the event handler can be identified easily and generic code can be written for the solution.
REACT JS TUTORIAL #5 - Javascript Events & Data Changes in React
 
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Let's wrap up beginner React.js lessons with handling JS events and data changes in React.js. If you build a Reactjs app correctly, each component is able to be very "dumb"..it will only be aware of a few pieces of the application and can be reused in multiple places. If a component is only aware of the data it needs and the event(s) it needs to fire when things change, it can be extremely decoupled from the rest of the application and less prone to break as the React JS application changes over time. GET THE SOURCE CODE: https://github.com/learncodeacademy/react-js-tutorials React JS #1: Intro & Workspace Setup https://youtu.be/MhkGQAoc7bc (Coming Tues, Feb [email protected]) React JS #2: Anatomy of a Component https://youtu.be/fd2Cayhez58 (Coming Wed, Feb [email protected]) React JS #3: Composing Multiple Components https://youtu.be/vu_rIMPROoQ (Coming Thurs, Feb [email protected]) React JS #4: State, Props & Data https://youtu.be/qh3dYM6Keuw (Coming Fri, Feb [email protected]) React JS #5: Events & Data Changes https://youtu.be/_D1JGNidMr4 (Coming Mon, Feb [email protected]) React JS #6: React Router & Intro to Single Page Apps https://youtu.be/1iAG6h9ff5s (Coming Tues, Feb [email protected]) React JS #7: React Router Params & Queries https://youtu.be/ZBxMljq9GSE -~-~~-~~~-~~-~- Learning Web Development? Watch the FREE COURSE: "Web Development for Absolute Beginners"! https://www.youtube.com/watch?v=gQojMIhELvM -~-~~-~~~-~~-~-
Views: 263925 LearnCode.academy
EVENT MEDIA  & LIFE  STYLE  STUDIO CHHINDWARA 9977111188,9300777001
 
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Cinematography Music Album Maker pre wedding song pre wedding photography cinematic video wedding photoshoot Pre wedding Shoot Photography Candid shoot lipdub song wedding story Documetary Film mo. 9977111188,event media event media group event media plan template event media llp event media tech event media production event media prices event media vivaha event media design event media pre shoot event mediator event media photography event media plan event media coverage event media alert event media advisory media event ap gov event and media production event and media technologies event and media event and media production salary media event amsterdam event and media production jobs event and media management a media event is a media event is quizlet a media event is staged primarily a media event is ap gov a media event definition a media event example the event media company planning a media event hosting a media event a media event is a situation that is event banget media partner event-based media processing and analysis a survey of the literature event buzz media media event brief media event backdrop event broadcast media media event background eventbrite media mixer event by media current event media bias event media companies event media coverage proposal event media coordinator job description event media contact event media companies in mumbai event media contact number event media.com event media checklist event media centre clase media & event event media doo event media definition media event definition ap gov media event dayan katz media event dubai event driven media event driven media partners media event disneyland media event detection event media education event media edu media event examples event edge media event media kit examples event media release example e media event management event e media education event e media event e media education opinioni e-m-ma event-media-management event media films event media free shoot event media fb eventfaqs media eventfinda media kit event first media media event form media event flyer consolidate event media fcpx social media event flyer event media group mauritius event media group quatre bornes media event government definition media event gov media event gov definition seventy event media group seventy event media group careers phoenix event media group indore event media network greenville nc event media house event media hdm event media handball event horizon media media event html5 event hosting media media event history definition social media event hashtags umbraco media event handler media event in html5 event media inc event media inc chicago media event ideas media event invitation media event invitation sample event in media city media event in a sentence event in media pa event in media i media event event media jobs event media jw.org event jakarta media partner media event jakarta event jobs media pa media event jobs florida main event media jimmy fox event social media jobs media event management jobs j media event event media kit event media kit sample event media kilkenny event media kft media event katz event sponsorship media kit event marketer media kit event planner media kit event sebagai media komunikasi eventmedia.lk event media logo event media ltd event media literacy event live media media event london media event las vegas event live media ltd media event listener event media management media event mdn media event meaning media event marketing event music media event social media marketing plan event social media manager main event media main event media indianapolis main event media bunbury main event media productions main event media logo m events cross media gmbh m&m media event & content gmbh event media network event media network llc event media nl media event names social media event new york social media event nyc ispa media event nyc golaar event n media natraj media event and entertainment patna bihar event media oü event one media media event organizer media event objectives creative event media orlando current event on media major media event of 1995 javascript event on media query one event media group event o media event media partner event media partnership proposal event media pitch event media pack media event quizlet media event questions javascript event media query event listener media query social media event questions media event definition quizlet media query event media event ap gov quizlet media query event handler event media release event media release sample event media relations event media report media event report template media event rundown media event recap media event rental post event media release post event media report event media sri lanka event media sports photography event media strategy event media studio event media server event media services event media sponsorship proposal event social media plan event social media event social media marketing event med 9300777001
Views: 459 LIFE STYLE MEDIA
Android Tutorial 2019 - Android Event Handling basics Part - 1
 
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Basics of Event handling in Android studio Events in Android can take a variety of different forms, but are usually generated in response to an external action.The Android framework maintains an event queue into which events are placed as they occur. Events are then removed from the queue on a first-in, first-out (FIFO) basis. In that we use event listeners. An event listener is an interface in the View class that contains a single callback method. event listener has some callback methods like 1)onClick( ) 2)onLongClick ( ) 3) onFocusChange ( ) 4) onKey () 5) onTouch etc... Follow the below links for more Basic Android Tutorial Videos - Android Fragments Part 1 - https://goo.gl/ntsKRK Android Fragments Part 2 - https://goo.gl/ZkFKxo Android Fragment Part 3 - https://goo.gl/9kwpjy Android Fragment Part 4 - https://goo.gl/JYAqk6 Android Fragment Part - 5 - https://goo.gl/yJRiHj Android Value Resources - https://goo.gl/YaLWzi Android Layout Part 1 - Relative Layout - https://goo.gl/tjmZMs Android Nested Layout - Part 2 - https://goo.gl/Nhrh7d Android Linear Layout Weight - Part 3 - https://goo.gl/DW31ie Padding and Margin in Android Development - https://goo.gl/WZSnQ5 Android Dialogs - https://goo.gl/ePDTuR Android Material Design Part 1 - Introduction - https://goo.gl/eNrQ34 Android Material Design Part 2 - Basic Structure - https://goo.gl/94dcSP Android Material Design Part 3 - Options Menu - https://goo.gl/vkv3h5 Android Material Design Part 4 - Context Menu - https://goo.gl/Mq5BYK Android Material Design Part 5 - Navigation - https://goo.gl/63Uo95 Android - Inter Activity Communication - https://goo.gl/W3uZn9 Intent and Intent Filters - Android - https://goo.gl/SbQQ5T Introduction Android Services Part - 1 - https://goo.gl/5HwRix Android Start Services Part - 2 - https://goo.gl/WsTSXB Android Services Intent ReDelivery Part - 3 - https://goo.gl/kxufv4 Android Intent Service Part - 4 - https://goo.gl/aGBorT Android Services AIDL Server Part - 5 - https://goo.gl/hczdvp Android Services AIDL Server Part - 6 - https://goo.gl/W7zGfD Android - Broadcast Reciever - https://goo.gl/wMii8p Android - Shared Preferences - https://goo.gl/K4eXJp Internal Storage in Android - https://goo.gl/ke5QwU External Storage in Android - https://goo.gl/pxmKKA Sqlite Introduction in Android Part - 1 - https://goo.gl/oUvNgD Creation own helper in Sqlite android Part - 2 - https://goo.gl/uXwkQL Sqlite crud operation in Android Part - 3 - https://goo.gl/5mTjZH Sqlite read operation in Android Part - 4 - https://goo.gl/5b9C9u Sqlite Read Operation Advancement Part - 5 - https://goo.gl/8MnvtD Sqlite update Operation in Android Part - 6 - https://goo.gl/PtMS8M Sqlite Delete Operation in Android Part - 7 - https://goo.gl/qqbVUo Sqlite raws operation in Android Part - 8 - https://goo.gl/zgLCjF Android Java8 - https://goo.gl/W3dNyw Android Event Handling basics - Part 1 - https://goo.gl/kRiiPM Android Java 8 Integration basics - Part 2 - https://goo.gl/s4ttYw Android - Handling Runtime Changes - https://goo.gl/dK9WKF Simple UI Thread in Android Part - 1 - https://goo.gl/kVJKzn Android Thread Part - 2 - https://goo.gl/QHjHSc Android UI Thread Asynchronous Part -3 - https://goo.gl/j7ookt Android UI Handlers Part - 4 - https://goo.gl/EYkDFg RX Android Examples in Android Part - 5 -https://goo.gl/7DjnMo Introduction to Content Provider in Android - Part 1 - https://goo.gl/G343gY Android Content Provider Part 2 - Contact App - https://goo.gl/rkNm1q Android Content Provider Part 3 - Custom Provider - https://goo.gl/AXWLN9 Android - Runtime Permissions - https://goo.gl/Lp1Cfg Android json parsing Tutorial Part - 1 - https://goo.gl/DMvF3J JSon Parsing with object api in Android Part -2 - https://goo.gl/QoHRU9 Json parsing using Gson with android Part - 3 - https://goo.gl/w4VHTm Android Web Service Introduction Part - 4 - https://goo.gl/52qSqP Android ws Volley Get - Part 5 - https://goo.gl/pQytzx Android Volley Post Web Services Part - 6 - https://goo.gl/kH8M7K For more, details you can visit and feel free to contact - Website - http://www.codekul.com For Android syllabus you can visit - https://goo.gl/doxyJC Contact us now - https://goo.gl/9pZWJS Visit our Social Media Github - http://www.github.com/codekul Facebook - https://www.facebook.com/codekulcom/ Twitter - https://twitter.com/codekul Linkedin - https://in.linkedin.com/in/codekul Google Plus - https://plus.google.com/u/1/b/1014156... Get connect with our Android tutor - aniruddha[dot]kudalkar[at]gmail[dot]com
Views: 2064 CodeKul
Handling events in AngularJS
 
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event handling in angularjs angularjs ng click example angularjs ng click event In this video we will discuss how to handle events in AngularJS. Let us understand with an example. Here is what we want to do. 1. Display the list of technologies in a table 2. Provide the ability to ike and dislike a technology 3. Increment the likes and dislikes when the respective buttons are clicked Script.js : In the controller function we have 2 methods to increment likes and dislikes. Both the functions have the technology object that we want to like or dislike as a parameter. var app = angular .module("myModule", []) .controller("myController", function ($scope) { var technologies = [ { name:"C#", likes:0, dislikes:0 }, { name: "ASP.NET", likes: 0, dislikes: 0 }, { name: "SQL", likes: 0, dislikes: 0 }, { name: "AngularJS", likes: 0, dislikes: 0 } ]; $scope.technologies = technologies; $scope.incrementLikes = function (technology) { technology.likes++; }; $scope.incrementDislikes = function (technology) { technology.dislikes++; }; }); HtmlPage1.html : Notice in the html below, we are associating incrementLikes() and incrementDislikes() functions with the respective button. When any of these buttons are clicked, the corresponsing technology object is automatically passed to the function, and the likes or dislikes property is incremented depending on which button is clicked. [!DOCTYPE html] [html xmlns="http://www.w3.org/1999/xhtml"] [head] [title][/title] [script src="Scripts/angular.min.js"][/script] [script src="Scripts/Script.js"][/script] [link href="Styles.css" rel="stylesheet" /] [/head] [body ng-app="myModule"] [div ng-controller="myController"] [table] [thead] [tr] [th]Name[/th] [th]Likes[/th] [th]Dislikes[/th] [th]Like/Dislike[/th] [/tr] [/thead] [tbody] [tr ng-repeat="technology in technologies"] [td] {{ technology.name }} [/td] [td style="text-align:center"] {{ technology.likes }} [/td] [td style="text-align:center"] {{ technology.dislikes }} [/td] [td] [input type="button" ng-click="incrementLikes(technology)" value="Like" /] [input type="button" ng-click="incrementDislikes(technology)" value="Dislike" /] [/td] [/tr] [/tbody] [/table] [/div] [/body] [/html] Styles.css : Styles for table, td and th elements table { border-collapse: collapse; font-family:Arial; } td { border: 1px solid black; padding: 5px; } th { border: 1px solid black; padding: 5px; text-align: left; } Link for all dot net and sql server video tutorial playlists https://www.youtube.com/user/kudvenkat/playlists?sort=dd&view=1 Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2015/11/handling-events-in-angularjs.html
Views: 329852 kudvenkat
OnClick Event In JavaScript || javascript OnClick Animation Tutorial
 
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♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦♦ Thank You For Watching This Video ♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥ My Twitter Page :- -------- https://twitter.com/JaydeepNashit -------- My Instagram Page :- -- https://www.instagram.com/jaydeepkumar007/ --- ♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥ Download Demo :- https://goo.gl/YaHxmy ♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥ OnClick Event In JavaScript || javascript OnClick Animation Tutorial ♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥♥ Special Thanks NCS For Music ---------------------------------------------------------------------------------------------------------- Track: Rameses B - Story [NCS Release] Music provided by NoCopyrightSounds. Watch: https://youtu.be/mfEDa8kGmgY Free Download / Stream: http://ncs.io/StoryYO
jQuery add event handler to dynamically created element
 
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Link for all dot net and sql server video tutorial playlists https://www.youtube.com/user/kudvenkat/playlists?sort=dd&view=1 Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2015/04/jquery-add-event-handler-to-dynamically.html In this video we will discuss, how to add event handlers to dynamically created elements. Let us understand this with an example. The following example, allows us to dynamically create new list item (li), attach a click event handler and add it to the unordered list (ul). This happens when you click "Add a New List Item" button. The problem with this approach is that we are binding a click event handler to every list item. This means if you have 500 list items, then there will be 500 event handlers in the memory and this may negatively affect the performance of your application. <html> <head> <title></title> <script src="jquery-1.11.2.js"></script> <script type="text/javascript"> $(document).ready(function () { $('li').on('click', function () { $(this).fadeOut(500); }); $('#btnAdd').on('click', function () { var newListItem = $('<li>New List Item</li>').on('click', function () { $(this).fadeOut(500); }); $('ul').append(newListItem); }); }); </script> </head> <body style="font-family:Arial"> <input id="btnAdd" type="button" value="Add a New List Item" /> <ul> <li>List Item</li> <li>List Item</li> </ul> </body> </html> A better way of doing the same from a performance standpoint is shown below. In this example, the click event handler is attached to the listitem (li) parent element (ul). Even if you have 500 list items, there is only one click event handler in memory. So how does this work 1. When you click on a list item (li), the event gets bubbled up to its parent (ul) as the list item (li) does not have an event handler 2. The bubbled event is handled by the the parent (ul) element, as it has a click event handler. 3. When a new list item is added dynamicaly, you don't have to add the click event handler to it. Since the newly created list item (li) is added to the same parent element (ul), the click event of this list item also gets bubbled upto the same parent and will be handled by it. <html> <head> <title></title> <script src="jquery-1.11.2.js"></script> <script type="text/javascript"> $(document).ready(function () { $('ul').on('click', 'li', function () { $(this).fadeOut(500); }); $('#btnAdd').on('click', function () { $('ul').append('<li>New List Item</li>'); }); }); </script> </head> <body style="font-family:Arial"> <input id="btnAdd" type="button" value="Add a New List Item" /> <ul> <li>List Item</li> <li>List Item</li> </ul> </body> </html>
Views: 62069 kudvenkat
How to change style sheet dynamically using Jquery in Tamil
 
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Click Event in JQuery dblClick Event in JQuery Mouse Events in JQuery Hover Event in JQuery FadeIn Event in Jquery FadeOut Event in Jquery FadeToggle Effect in Jquery FadeTo Effect in Jquery Animate Effect in Jquery Animate Using Relative Values in Jquery Animate Using Continuous Values in Jquery Callback Function in Jquery Without Callback Function in Jquery How to Use Chaining in Jquery Get Methods in Jquery Set Methods in Jquery Append Method in Jquery Selectors in Jquery Filters in Jquery Hierarchy Filters in Jquery Filter Using Attributes in Jquery Use Traversing Methods in Jquery Use Before and After Methods in Jquery Use Remove Method in Jquery Use Empty Method in Jquery Remove Classes Using Jquery Add Classes Using Jquery Toggle Between Classes in Jquery Using selectors and filters to extract information Creating, inserting, and manipulating webpage content Understanding jQuery statement chaining Using CSS to position content Building event handlers Showing, hiding, and fading page elements with jQuery Creating custom animations Accessing external data with AJAX jQuery is a JavaScript Library. jQuery greatly simplifies JavaScript programming. jQuery is easy to learn in Tamil Complete Jquery in Tamil Tutor Joes Jquery Tamil Tutorial google image search style gallery jquery google images effect google image search style gallery google image likeness search Using selectors and filters to extract information Creating, inserting, and manipulating webpage content Understanding jQuery statement chaining Using CSS to position content Building event handlers Showing, hiding, and fading page elements with jQuery Creating custom animations Accessing external data with AJAX jQuery is a JavaScript Library. jQuery greatly simplifies JavaScript programming. jQuery is easy to learn in Tamil Complete Jquery in Tamil Tutor Joes Jquery Tamil Tutorial google image search style gallery jquery google images effect google image search style gallery google image likeness search How to Remove Table Row tr in jQuery on Button Click in Tamil How to Add Table Row tr in jQuery on Button Click In Tamil How To Read The Value Of HTML Table by Jquery in Tamil Check for file extension before uploading By Jquery In Tamil How to Get Selected Radio Button Value in jQuery In Tamil Show Password Using jQuery on Checkbox Click Event In Tamil Inserting Data Into MySql Database Using Jquery Post and PHP Event In Tamil How to change style sheet dynamically using Jquery in Tamil For Free source code and Free Project Please visit : http://www.tutorjoes.com/ http://www.facebook.com/tutorjoes http://www.youtube.com/tutorjoes
Views: 851 Tutor Joe's Stanley
Triggers in WPF
 
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Hi My fellow learners, since you have learnt about Styles it is time to look into WPF triggers. Triggers are used with styles to give your UI a rich and dynamic look and feel. Leave a comment for your doubts and please do subscribe to my channel. Share this channel and keep learing.
Views: 19445 DotNetSkoool
SQL Server Integration Services (SSIS) Part 17 - Event-handling and logging
 
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If you'd like to help fund Wise Owl's conversion of tea and biscuits into quality training videos you can click this link https://www.wiseowl.co.uk/donate?t=1 to make a donation. Thanks for watching! By Andy Brown https://www.wiseowl.co.uk - This tutorial covers: - attaching events to different parts of a package (including when a variable's value changes) - logging what's happening in a package to a text file or to SQL Server - creating audit transforms to add additional columns in data flow If you like the style of our tutorials but think that there is no substitute for classroom training, we agree! Have a look at our two-day SSIS introductory course at http://www.wiseowl.co.uk/courses/ssis.htm (the course runs in the UK, and in warm countries by arrangement).
Views: 45862 WiseOwlTutorials
Click Event in JQuery In Tamil
 
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Complete Jquery Tutor Joes Jquery Tamil Tutorial Basic Jquery Tamil Tutorial CSS Style using Jquery Adding Class Dynamically Using Jquery Adding And Remove Class Dynamically Using Jquery First,Last,Child,nth child in Jquery Tamil Show and Hide a Content using Click Event in Jquery Tamil FadeIn,FadeOut Using is Visible in Jquery Tamil How to bind an event in Jquery Tamil How to bind multiple events dynamically using Jquery Tamil Bind and Unbind Events in Jquery Tamil How to Get Screen Size Using Jquery Find Window Screen X axis and Y axis in Jquery Tamil MouseMove Event,Click Event,Change Event,Focus Event ,Blur Event How to Use toggleClass Event In Jquery Tamil Click Event in JQuery dblClick Event in JQuery Mouse Events in JQuery Hover Event in JQuery FadeIn Event in Jquery FadeOut Event in Jquery FadeToggle in Jquery FadeTo Effect in Jquery Animate Using Relative Values in Jquery Animate Using Continunous Values in Jquery Callback Function in Jquery Without Callback Function in Jquery How to Use Chaining in Jquery How to Use Get Methods in Jquery How to Use Set Methods in Jquery How to Use Append Method in Jquery How to Use Selectors in Jquery jQuery is a JavaScript Library. jQuery greatly simplifies JavaScript programming. jQuery is easy to learn in Tamil Complete Jquery in Tamil Tutor Joes Jquery Tamil Tutorial google image search style gallery jquery google images effect google image search style gallery google image likeness search For Free source code and Free Project Please visit : http://www.tutorjoes.com/ http://www.facebook.com/tutorjoes http://www.youtube.com/tutorjoes
Views: 1191 Tutor Joe's Stanley
addeventlistener and removeeventlistener in JavaScript
 
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Link for all dot net and sql server video tutorial playlists http://www.youtube.com/user/kudvenkat/playlists Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2015/01/addeventlistener-and.html In this video we will discuss assigning event handlers in JavaScript using the following special methods addEventListener removeEventListener attachEvent detachEvent Internet Explorer 9 (and later versions) & all the other modern browsers support addEventListener() and removeEventListener() methods. Sytnax for assigning event handler using addEventListener() method element.addEventListener(event, handler, phase) Sytnax for removing event handler using removeEventListener() method element.removeEventListener(event, handler, phase) Please note : The third parameter phase is usually set to false as it is not used. Example : In this example, we are passing values for all the 3 parameters including phase. [input type="button" value="Click me" id="btn"/] [script type="text/javascript"] btn.addEventListener("mouseover", changeColorOnMouseOver, false); btn.addEventListener("mouseout", changeColorOnMouseOut, false); function changeColorOnMouseOver() { this.style.background = 'red'; this.style.color = 'yellow'; } function changeColorOnMouseOut() { this.style.background = 'black'; this.style.color = 'white'; } [/script] Since the third parameter "phase" is optional you can omit it if you wish. btn.addEventListener("mouseover", changeColorOnMouseOver); btn.addEventListener("mouseout", changeColorOnMouseOut); Example : This example demonstrates removing event handlers. [input type="button" value="Click me" id="btn"/] [input type="button" value="Remove Event Handlers" onclick="removeEventHandlers()" /] [script type="text/javascript"] btn.addEventListener("mouseover", changeColorOnMouseOver); btn.addEventListener("mouseout", changeColorOnMouseOut); function changeColorOnMouseOver() { this.style.background = 'red'; this.style.color = 'yellow'; } function changeColorOnMouseOut() { this.style.background = 'black'; this.style.color = 'white'; } function removeEventHandlers() { btn.removeEventListener("mouseover", changeColorOnMouseOver); btn.removeEventListener("mouseout", changeColorOnMouseOut); } [/script] Using this approach you can assign more than one event handler method to a given event. The order in which handler methods are executed is not defined. In this example, 2 event handler methods (clickHandler1 & clickHandler3) are assigned to click event of the button control. When you click the button both the handler methods are executed. [input type="button" value="Click me" id="btn"/] [script type="text/javascript"] btn.addEventListener("click", clickHandler1); btn.addEventListener("click", clickHandler2); function clickHandler1() { alert("Handler 1"); } function clickHandler2() { alert("Handler 2"); } [/script] attachEvent() and detachEvent() methods only work in Internet Explorer 8 and earlier versions. Sytnax for assigning event handler using attachEvent() method element.attachEvent( "on"+event, handler) Sytnax for removing event handler using detachEvent() method element.detachEvent( "on"+event, handler) Example : This example will only work in Internet Explorer 8 and earlier versions. [input type="button" value="Click me" id="btn"/] [script type="text/javascript"] btn.attachEvent("onclick", clickEventHandler); function clickEventHandler() { alert("Click Handler"); } [/script] Cross browser solution : For the above example to work in all browsers, modify the script as shown below. [input type="button" value="Click me" id="btn"/] [script type="text/javascript"] if (btn.addEventListener) { btn.addEventListener("click", clickEventHandler); } else { btn.attachEvent("onclick", clickEventHandler); } function clickEventHandler() { alert("Click Handler"); } [/script]
Views: 42319 kudvenkat
QuickTip #158 - CSS Tutorial - Word Spacing | HTML | style
 
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CSS HTML Tutorial: Word Spacing. |||||||||||||||||Links||||||||||||||||| Amazon-Link: http://amzn.to/1yr6OdD Günstige Spiele: https://www.g2a.com/r/sawmyname Meine Buchempfehlungen: C#: http://amzn.to/1sW4Mdb Python: http://amzn.to/Zc3T9g CSS: http://amzn.to/1uhO4uy JavaScript: http://amzn.to/1mJNy6n Java: http://amzn.to/1pbGv1z Facebook: https://www.facebook.com/pages/Event-Handler/1495860210672727
Views: 38 Event Handler
Notepad++ Tutorial - Change Theme Styles | XML
 
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Notepad++ Tutorial - Change Theme Styles |||||||||||||||||Affiliate-Links||||||||||||||||| Amazon-Link: http://amzn.to/1yr6OdD My Books: C#: http://amzn.to/1sW4Mdb Python: http://amzn.to/Zc3T9g CSS: http://amzn.to/1uhO4uy JavaScript: http://amzn.to/1mJNy6n Java: http://amzn.to/1pbGv1z Facebook: https://www.facebook.com/pages/Event-Handler/1495860210672727 Website-Link: http://timtrott.co.uk/notepad-colour-schemes/
Views: 342 Event Handler
JavaScript event capturing
 
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Link for all dot net and sql server video tutorial playlists http://www.youtube.com/user/kudvenkat/playlists Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2015/01/javascript-event-capturing.html Event capturing is the opposite of event bubbling. We discussed event bubbling in detail in Part 40 of JavaScript tutorial. With event bubbling the event bubbles up from the inner most element to the outer most element in the DOM hierarchy. With event capuring the opposite happens, the event gets captured from the outer most element to innermost element. In real world event capturing is rarely used. Let us understand this with an example. In the following example we have 3 [div] nested elements. Notice that we are using addEventListener() method to assign event handler to each [div] element. To enable event capturing we have set the third parameter (phase) of addEventListener() method to true. Now when you click on the innermost [div] (DIV3), notice that the events are fired from the outermost [div] to innermost [div] (DIV1 =] DIV 2 =] DIV 3). [html] [head] [style type="text/css"] .divStyle { display: table-cell; border: 5px solid black; padding: 20px; text-align: center; } [/style] [/head] [body] [div id="DIV1" class="divStyle"] DIV 1 [div id="DIV2" class="divStyle"] DIV 2 [div id="DIV3" class="divStyle"] DIV 3 [/div] [/div] [/div] [script type="text/javascript"] var divElements = document.getElementsByTagName('div'); for (var i = 0; i [ divElements.length; i++) { divElements[i].addEventListener("click", clickHandler, true); } function clickHandler() { alert(this.getAttribute("id") + " click event handled"); } [/script] [/body] [/html] Please note : IE8 and earlier versions does not support addEventListener() method. This implies that event capturing is not supported in IE8 and earlier versions, and hence the above code will not work in IE 8 and earlier versions. Stopping event capturing : Stopping event capturing is very similar to stopping event bubbling. With the example below, when you click on any [div] element notice that DIV 1 element handles the click event and it does not get captured down. [html] [head] [style type="text/css"] .divStyle { display: table-cell; border: 5px solid black; padding: 20px; text-align: center; } [/style] [/head] [body] [div id="DIV1" class="divStyle"] DIV 1 [div id="DIV2" class="divStyle"] DIV 2 [div id="DIV3" class="divStyle"] DIV 3 [/div] [/div] [/div] [script type="text/javascript"] var divElements = document.getElementsByTagName('div'); for (var i = 0; i [ divElements.length; i++) { divElements[i].addEventListener("click", clickHandler, true); } function clickHandler(event) { event.stopPropagation(); alert(this.getAttribute("id") + " click event handled"); } [/script] [/body] [/html] Using addEventListener() method with last argument set to true is the only way to enable event capturing. If the thid parameter (phase) is set to true event capturing is enabled and if it is set to false event bubbling is enabled. If you want both even bubbling and capturing to be enabled, then assign handlers 2 times, once with the phase parameter set to false and once with the phase parameter set to true as shown below. [html] [head] [style type="text/css"] .divStyle { display: table-cell; border: 5px solid black; padding: 20px; text-align: center; } [/style] [/head] [body] [div id="DIV1" class="divStyle"] DIV 1 [div id="DIV2" class="divStyle"] DIV 2 [div id="DIV3" class="divStyle"] DIV 3 [/div] [/div] [/div] [script type="text/javascript"] var divElements = document.getElementsByTagName('div'); for (var i = 0; i [ divElements.length; i++) { divElements[i].addEventListener("click", clickHandler, false); divElements[i].addEventListener("click", clickHandler, true); } function clickHandler() { alert(this.getAttribute("id") + " click event handled"); } [/script] [/body] [/html] With both event capturing and bubbling enabled, events are first captured from the outermost element to the innermost element and then bubbles up from the innermost to the outermost element.
Views: 36253 kudvenkat
Chapter 8 Event Handling in Javascript Hindi
 
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Diva Events offers that magical combination between efficient event management and sheer dazzle With meticulous attention to planning, structure, theme and timing, Diva Events can truly make your event the talk of the town. May It be award function crew award function hosting, crew for ceremonies, crew for corporate event, crew for wedding, event crew provider, event handler, event organizer, event talent, fashion show organizer , photography agency , talent for corporate event, talent for wedding event, talent handling, video production agency, wedding organizer.
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Pada video ini saya akan mendemonstrasikan cara pembuatan aplikasi dengan berbagai event handler yang diimplementasikan terhadap 2 buah listview. Listview 1 dengan style large icon dan listview 2 dengan style detail. Ketika data yang ada di listview 1 di drag ke listview 2 maka data tersebut akan berpindah ke listview 2
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jQuery Tutorial 9: Event Handlers - Part 2
 
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Learn what are event method handlers in jQuery and how to make them work in your code!
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Let's Show #147 - JavaScript Tutorial - Filter Elements with CSS | jQuery | Styles
 
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JavaScript / jQuery CSS Tutorial: Filter Elements with CSS Styles. ↕↕↕↕↕↕↕↕↕↕↕↕↕↕Links↕↕↕↕↕↕↕↕↕↕↕↕↕↕ Amazon-Link: http://amzn.to/1yr6OdD Günstige Spiele: https://www.g2a.com/r/sawmyname Meine Buchempfehlungen: C#: http://amzn.to/1sW4Mdb Python: http://amzn.to/Zc3T9g CSS: http://amzn.to/1uhO4uy JavaScript: http://amzn.to/1mJNy6n Java: http://amzn.to/1pbGv1z Facebook: https://www.facebook.com/pages/Event-Handler/1495860210672727
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This is the twelfth tutorial of jQuery basic series. In this lesson, we're going to learn about bind and unbind event handler.
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The charming Ross Mathews attended the QVC Red Carpet Style pre Oscar bash Friday night. Along with fixing our host Jason's tie and gave us some inside info on what to expect on the Oscar red carpet! Check out our interview! Hollywood.TV is your source for all the latest celebrity news, gossip and videos of your favorite stars! Click to Subscribe! - http://bit.ly/SubHTV Become a Fan! - http://Facebook.com/HollywoodTV Follow Us! - http://Twitter.com/HollywoodTV HTV is on the job 24/7, covering all the major Hollywood events including The Golden Globes, The Oscars, The Screen Actors Guild Awards, The Grammy's, The Emmy's and the American Music Awards, as well as all the red carpet movie premiers in Los Angeles and New York. Hollywood.TV is currently the third most viewed reporter channel on YouTube with over 400 million views and footage seen worldwide!
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Support - https://www.paypal.me/Codevolution Facebook - https://www.facebook.com/codevolutionweb Github - https://github.com/gopinav Angular | Angular Tutorial for Beginners | Angular Event Binding
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jQuery and AJAX Tutorials 4 | Events and Triggers
 
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In the previous tutorials we learned lots of basics, like how jQuery works and how to style each element on the page using selectors. We wrote some jQuery code which hid buttons or changed their appearance a little bit. But of course we could have done all that without using jQuery. In this tutorial we are going to learn something very cool -- it's going to be an introduction to the web interactivity. So what do I mean by saying interactivity? Let's say we have a web page with a bunch of buttons or text input fields on it. Most of the time we want something specific to happen when a user clicks a button or starts entering text into a text box without reloading the page. It's impossible to solve that using only HTML and CSS -- you would want to use scripts. jQuery as a JavaScript library, allows you to do a lot and it also contains numerous complete solutions on tracking user activity -- you just need to know how to pick the right one. So this is pretty much the stuff we are about to learn in this tutorial. http://www.mybringback.com/bringers/13716/4-jquery-tutorials-events/ ‎ . Visit Our Friends @ Stone River E-Learning for Additional Tutorials - http://bit.ly/1fjsXTn Coupon 20% Off HTML & CSS for Beginners - http://bit.ly/1MmuYfw
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