Method called from codebehind with ajax return undefine

Question

I want to get value from codebehind that then I call it using ajax, but I got nothing, in succes it just show undefine , here the code

function PopMensaje() {

            $.ajax({
                type: "POST",
                url: "/WebForms/Modulo Tramites/ProcesosTramites/frmIniciarTramite.aspx/metodoajax",
                data: '{}',
                contentType: "application/json; charset=utf-8",
                dataType: "json",
                success: function (result) {
                    alert("retorno "+result.d);
                },
                error: function () {
                    alert('Ocurrio un error');

                }
            });

on calling show

};

and this the function in codebehind

  [WebMethod]
  public static string metodoajax(){
        return "123";
    }

on calling shows "retorno undefine".I expect it shows "retorno 123"

What I'm doing wrong? How to fix this?

Answer 1

You function works fine. I think that your are missing jQuery in your webform and the closing brace for your javascript function:

        <head runat="server">
          <script src="Scripts/jquery-2.1.4.min.js" type="text/javascript"></script>
       </head>

Method called from codebehind with ajax return undefine

Question

1 answers

solution1
0 2015-12-26 04:11:34

Method called from codebehind with ajax return undefine

Question

1 answers

solution1 0 2015-12-26 04:11:34

solution1
0 2015-12-26 04:11:34