Call server method using JavaScript or jQuery

Question

I wanted to know if you can call server side method using JavaScript or jQuery whilst doing a postback?

I have created a anchor button and want it to work same way as a linkbutton i.e. do postback and call a event. So i thought it could be possible of using JavaScript?

How would i do this? I have done alot of searches on net but could not find anything..

<a href="javascript:void(0);" id="SOMEID" onclick="DOPOSTBACK CALL SERVER SIDE METHOD();"></a>;

jQuery is a JavaScript library, not an alternative to JavaScript. — Quentin
– Quentin, Commented Feb 3, 2012 at 9:16
possible duplicate of How to call code behind server method from a client side javascript function? — Quentin
– Quentin, Commented Feb 3, 2012 at 9:16

Jon · Accepted Answer · 2012-02-03 09:09:14Z

2

Have you tried searching for ajax?

http://api.jquery.com/category/ajax/

There's lots of tutorials online. If you're using dot net then there's also a JQuery plugin called dot net ajax which I find really useful. However ajax is a huge topic and your question is really broad so it's hard to be more specific!

answered Feb 3, 2012 at 9:09

Jon

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Lix · Accepted Answer · 2012-02-03 09:14:33Z

2

What you could do is send an AJAX call to the server. But it's a really big topic, you can find a lot of information on the internet. The simplest form with jQuery is

<a href="javascript:void(0);" id="SOMEID" >Call the server</a>;

$('#SOMEID').click(function(){
    $.get('url/on/server', function(data){
        //do something with data returned from server
    });
});

This makes an Asynchronous call to the url url/on/server and then waits for an answer (since the call is Asynchronous the user can keep on doing things on the page)

edited Feb 3, 2012 at 9:14

Lix

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answered Feb 3, 2012 at 9:07

Nicola Peluchetti

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deostroll · Accepted Answer · 2012-02-03 09:21:21Z

0

Okay you need to postback. Take a look at this article --> http://weblogs.asp.net/mnolton/archive/2003/06/04/8260.aspx

The only catch is you have to call the GetPostbackReference every time a postback happens.

answered Feb 3, 2012 at 9:21

deostroll

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Comments

Amar Palsapure · Accepted Answer · 2012-02-03 09:23:23Z

If you want to do postback from anchor tag using javascript, you can do

document.forms[0].submit(); //This will post your form

OR

__doPostBack();

OR

If you want to know which control caused postback.

JavaScript

function __doPostBack(eventTarget, eventArgument) {
       var theform;
       if (window.navigator.appName.toLowerCase().indexOf("n etscape") > -1) {
           theform = document.forms["Form1"];
       }
       else {
           theform = document.Form1;
       }
       theform.__EVENTTARGET.value = eventTarget.split("$").join(":");
       theform.__EVENTARGUMENT.value = eventArgument;
       alert(theform.__EVENTARGUMENT.value);
       theform.submit();
}

With following ASPX code to make it work

<input type="hidden" name="__EVENTTARGET" />
<input type="hidden" name="__EVENTARGUMENT" />

Hope this is what you are looking for.

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