ASP.net PageMethods return undefined

Question

Hi everyone i trying to get data from cs to js using ToolkitScriptManager. this is my aspx :

Answer 1

You need to supply a success and a failure callback to the webmethod call as below.

  $(window).load(function () {
                                    PageMethods.isConnected(fnsuccesscallback,fnerrorcallback);

        });
        function fnsuccesscallback(data) {
            alert(data);

        }
        function fnerrorcallback(result) {
            alert(result.statusText);
        }

Also, there is another way of accessing the page methods using $.ajax.