How to call a server side function on a jQuery click event

Question

I am a newbie to ASP.NET. i wish to invoke a server side event/function on a client click, without refreshing the page. I tried ajax,__dopostback etc... but failed miserably.. may be because of my less knowledge in ASP

Can anyone help me pls

$.ajax({

                             type:"POST",
                               url:"projects.aspx/slides",
                               data: "{'value':''}",
                              contentType:"application/json;charset=utf-8",
                               dataType:"json",

                              //cache:false,
                               success:function(data){
                                   alert("OK");
                                  alert(data.d);
                               },
                               error:function(XMLHttpRequest,textStatus,errorThrown)
                               {
                                   alert(textStatus);
                               }

                           });

This is my ajax code.. Is there any problem with this??

I don't see a reason for the downvotes, this guy admits he's new! He might have tried AJAX the wrong way! — Rutwick Gangurde
– Rutwick Gangurde, Commented Jan 17, 2013 at 6:54
the ajax i placed above.... projects.aspx is the same page where the script runs... the method slides is in it's cs page — Shafeek B Salim
– Shafeek B Salim, Commented Jan 17, 2013 at 10:11

machine · Accepted Answer · 2013-01-17 06:56:07Z

1

ASP.NET runs server side. So it can't invoke server methods. You could use AJAX to grab data, or make a REST web service to manipulate the server which you can then call from javascript. One thing potentially worth investigating is SignalR. It's very easy to use and involves a constant dialog between the server and all clients that is completely set up for you.

I can't really help you any more than that, because you haven't actually asked a question.

answered Jan 17, 2013 at 6:56

machine

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3 Comments

Shafeek B Salim Over a year ago

I have a jQuery slide in my webpage, that contains images. Obviously there is a next arrow and prev arrow, which is dynamically generating by the script. So for each click of next or prev button i have to increment the value of a hidden field and rebind the repeater in reference to the value in hidden field. So my problem is i can only have a click event of next and prev in jQuery. and the code for rebinding the repeater is in my cs page.. How can i animate the slide and rebind the repeater at the same time....

machine Over a year ago

You can't. Or at the very least shouldn't. I'm sure there's some horrible, hacky approach to this using repeated requests to the server, but this is a thing that should be done entirely in Javascript. It would be both neater and easier.

Shafeek B Salim Over a year ago

But how can i rebind the repeater using javascript?

ntstha · Accepted Answer · 2013-01-17 07:01:18Z

0

Why dont you try adding those functionality in separate asp page and then if in case you need to load those html response in current asp page you can try

$('.btn').bind('click',function(){

        $('.div_in_which_to_load_response').load('./webservices/your_functionality_page.asp'{"data1": dummy1});
                return false;  


            });

answered Jan 17, 2013 at 7:01

ntstha

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1 Comment

Shafeek B Salim Over a year ago

How can I change the value of the hidden field in the current ASP page? My method to cal actually contains the following two lines HiddenField1.Value =Convert.ToString(Convert.ToInt16(HiddenField1.Value) + 1); bindrepeater();

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