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.netasp.net-ajaxwebmethod

Utilising output of WebMethod

I'm calling a WebMethod using the ASP .NET AJAX Framework. In the success method, I'm trying to use the return value of the WebMethod. I keep on getting told it's undefined, even though when I'm debugging with Edge I can see that there is a value.

This is the code where I call the WebMethod:

Timebox.CreateNew(timeboxName, timeboxDate, startTime, endTime,  CreateTimeboxCallback, CreateTimeboxErrorCallback);

and here is the success callback function:

function CreateTimeboxCallback(response) {
  alert(response.d);
}

When I run the code, I get the following messagebox:

enter image description here

When I debug using the browser developer tools, or use console.log(response);, I get the following (which is exactly what the WebMethod is supposed to return):

enter image description here

I want to be able to use the values in ErrorCode and ErrorMessage. Please can someone assist.

Solution

  • if you are getting an error message - is your error callback being called? Also, response is an array [[object Object]], so try alerting response[0].ErrorMessage