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calling controller using JQuery ajax calls

Posted on 2011-03-21
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Last Modified: 2012-05-11
Hi...i have a user control contains  3 textboxes and a button
 added to a aspx page .  When clicked it should make a ajax call to controller and pass data of textboxes and it should return a message....how can i do this
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Question by:praveen7k
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chuckalicious earned 500 total points
ID: 35189658
A little bit tricky to comment without seeing an example page, or example content. I'm not familiar with aspx, but assuming you wanted to pass the values back using POST, you could do something like the following:

Textboxes are in format <input type="text" name="field1" value="" /> etc

Basically what I'm doing here is binding a click event to the element of a given ID, in this case your button. I am then setting 3 variables, each with the value of the relative text box (not you may want to correctly escape these depending on content) and then I am performing a jQuery POST to a given URL and passing it 3 value pairs, in the format of <value name>:<value>

There are other things you can do to check that the AJAX query returned a success or error, so I suggest you look at the documentation which is very helpful http://api.jquery.com/jQuery.post/



$(function() {
$("<id of button element>").click(function(){
    //in here you need to build a list of the answers, for example
    var  val1=$("input[name='field1']").val();
    var  val2=$("input[name='field2']").val();
    var  val3=$("input[name='field3']").val();

   //now do a post using jQuery AJAX
	$.post("url of your receiving page", {entered_text1 : val1, entered_text2 : val2, entered_text3 : val3}, function(data){
		if (data.length>0){
			//do something
		} 
	}); 
})
})

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Author Comment

by:praveen7k
ID: 35223654
This was helpful for textboxes.....
In my rek there is third part uploadify control ..so here usercan upload 1o files max..so when i click button it should make a ajax call to controller it should post all these attachments to the controller ...is there any way to do this.....
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LVL 4

Expert Comment

by:chuckalicious
ID: 35230392
I don't think there's an easy way to do Ajax file uploads. I've looked at this for PHP using POST. I would Google AJAX file uploads and see what you get.
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