Cannot call Webmethod from JQuery

Question

I cannot call webmethod from jquery. I think its about web.config file. How can i set web.config file for web services and webmethod?

Answer 1

Do you have this code?

        $.ajax({
            url: "Services/MyService.svc/Service",
            type: "GET",
            context: document.body,
            contentType: 'application/json; charset=utf-8',
            datatype: 'json',
            success: function (data) {
                // do something
            }
        });

note that contentType part is critical.

If you do, check Firebug for exact error that gets thrown in the "Net" tab. Normally, people have different problems depending on service type - ASP.NET asmx vs. WCF svc. For asmx configuration, refer to How to let an ASMX file output JSON . For wcf, you need to set up web.config to allow web scripting, like so:

<system.serviceModel>
 <behaviors>
  <endpointBehaviors>
    <behavior name="AspNetAjaxBehavior">
      <enableWebScript/>
    </behavior>
  </endpointBehaviors>
 </behaviors>

and then later configure the service to use that behavior:

  <services>
    <service name="MyProject.Services.MyService">
      <endpoint address="/Services/MyService.svc" behaviorConfiguration="AspNetAjaxBehavior" binding="webHttpBinding" contract="MyProject.Services.MyService"/>
    </service>
  </services>
</system.serviceModel>