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Meander365 on 11/04/10

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Last Edited at 11/04/10 01:43pm

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jQuery Event Delegation - Simple Example

/ Published in: jQuery

Allow events to bubble up the DOM to overseeing handlers.

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
	<meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />
	<title>Event Delegation</title>
</head>
<body>
 
	<script type="text/javascript" src="_assets/behaviour/jquery-1.4.3.min.js"></script>
	<script type="text/javascript">
	$(function() {
 
		//delegate
		$('table').delegate('tr','click', function() {
			$(this).toggleClass('selected');
		});
 
		//normal bind - slower performance as each tr has to have a bind event 
		//$('tr').bind('click', function() {
			//$(this).toggleClass('selected');
		//});
 
	});
</script>
 
<style type="text/css">
	.selected {background:yellow;}
</style>
 
	<table cellspacing="0">
		<tbody>
		  <tr>
			<td>1</td>
			<td>Lorem ipsum dolor sit amet</td>
		  </tr>
		  <tr>
			<td>2</td>
			<td>Lorem ipsum dolor sit amet</td>
		  </tr>
		  <tr>
			<td>3</td>
			<td>Lorem ipsum dolor sit amet</td>
		  </tr>
		  <tr>
			<td>4</td>
			<td>Lorem ipsum dolor sit amet</td>
		  </tr>
		  <tr>
			<td>5</td>
			<td>Lorem ipsum dolor sit amet</td>
		  </tr>
		  <tr>
			<td>6</td>
			<td>Lorem ipsum dolor sit amet</td>
		  </tr>
		</tbody>
	</table>
 
 
</body>
</html>