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Jquery - ajaxStart( callback ) Method
Description:
The ajaxStart( callback ) method attaches a function to be executed whenever an AJAX request begins and there is none already active. This is an Ajax Event.
Syntax:
Here is the simple syntax to use this method:
$[selector].ajaxStart( callback )
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Parameters:
Here is the description of all the parameters used by this method:
Example:
Assuming we have following HTML content in /jquery/result.html file:
<h1>THIS IS RESULT...</h1>
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Following is a simple example a simple showing the usage of this method.
<html>
<head>
<title>the title</title>
<script type="text/javascript"
src="/jquery/jquery-1.3.2.min.js"></script>
<script type="text/javascript" language="javascript">
$(document).ready(function() {
/* Global variable */
var count = 0;
$("#driver").click(function(event){
$('#stage1').load('/jquery/result.html');
});
/* Gets called when request starts */
$("#stage2").ajaxStart(function(){
count++;
$(this).html("<h1>Starts, Count :" + count + "</h1>");
});
/* Gets called when request complete */
$("#stage3").ajaxComplete(function(event,request,set){
count++;
$(this).html("<h1>Completes,Count:" + count + "</h1>");
});
});
</script>
</head>
<body>
<p>Click on the button to load result.html file:</p>
<div id="stage1" style="background-color:blue;">
STAGE - 1
</div>
<div id="stage2" style="background-color:blue;">
STAGE - 2
</div>
<div id="stage3" style="background-color:blue;">
STAGE - 3
</div>
<input type="button" id="driver" value="Load Data" />
</body>
</html>
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To understand it in better way you can Try it yourself.
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