How to call webmethor using jquery.

Hello.

$('#txtMbUser').click(function () {
        var username = $('#txtMbUser').val();
        $.ajax({
            type: "POST",
            url: "FormMbRegister.ascx/Usercheck",
            data: "username: '" + username + "'",
            contentType: "application/json; charset=utf-8",
            dataType: "json",
            success: function (msg) {
                alert(msg);
            },
            Error: function(){
                alert('loi');
            }
        });
    });

#region [Check User, Email exits]
[WebMethod]
public static string Usercheck(string username)
{
    return "Called";
}
#endregion

It is do not work.

Re: How to call webmethor using jquery.

With Reference to this post ,

http://forums.asp.net/t/1795796.aspx/1

i say that

"There is a limitation. You can not call a webmethod in a user control from jQuery/JavaScript. This is a framework restriction. You can change your design to fit your requirment. May be you can shift the pagemethod to aspx page or some web service."

Re: How to call webmethor using jquery.

Refer this

http://encosia.com/using-jquery-to-directly-call-aspnet-ajax-page-methods/

http://www.codeproject.com/Articles/287430/Calling-ASP-Net-WebMethods-using-jQuery

Re: How to call webmethor using jquery.

Hi,

You could use pagemethod. For example:

[ScriptMethod, WebMethod]

   public static string GetLabelText()

   {

      return "Hello";

   }
    <script type="text/javascript">

      function InsertLabelData() {

          PageMethods.GetLabelText(onSuccess, onFailure);

      }

 

      function onSuccess(result) {

          var lbl = document.getElementById('lbl');

          lbl.innerHTML = result;

      }

 

      function onFailure(error) {

          alert(error);

      }



      InsertLabelData();


    </script>

More details, please refer to: http://blogs.microsoft.co.il/blogs/gilf/archive/2008/10/04/asp-net-ajax-pagemethods.aspx.