Hi I am calling a simple page method from javascript , here is my code at markup

 function OnCallSumComplete(result, userContext, methodName) {             

            alert(result);

 }

 function OnCallSumError(error, userContext, methodName) {

     if (error !== null) {

         alert(error.get_message());

     }

 }

 function test(){

     var contextArray = ;

     PageMethods.TestMethod(test parameter, OnCallSumComplete, OnCallSumError,  contextArray);

 }



 <asp:ScriptManager ID=ScriptManager1 EnablePageMethods=true runat=server />

at cs

 [System.Web.Services.WebMethod]

 public static string TestMethod(string para)

 {



    return Yes this is working;

 }

the alert show the result and it says null. I check firebug and i don't see error from console.

If i change the TestMethod to

 [System.Web.Services.WebMethod]

 public static string TestMethod()

 {

    return Yes this is working;

 }

And PageMethod to

 PageMethods.TestMethod( function (response) { alert(response);  } );

It shows the correct response as Yes this is working. However, i need to pass parameter to the function. Do i miss anything?

Thanks for help.