Question

I am using this code from http://www.joe-stevens.com/2010/01/04/using-jquery-to-make-ajax-calls-to-an-asmx-web-service-using-asp-net/

function callWebService(address) {
 var result;
 $("#result").addClass("loading");
     $.ajax({
         type: "POST",
         url: address,
         data: "{}",contentType: "application/json; charset=utf-8",
         dataType: "json",
         success: Success,
         error: Error
     });
}

function Success(data, status) {
 $("#result").removeClass("loading");
 $("#result").html(data.d);
 alert("Success");
}

function Error(request, status, error) {
 $("#result").removeClass("loading");
 $("#result").html(request.statusText);
 alert("Error");
}

I don’t understand what is wrong with this code. It keeps returning “Error”

Answer 1

Also make sure that the service URL that you’re trying to access is in the same domain as your site. AJAX calls won’t succeed if you cross domains, since browsers subject AJAX calls to the same domain policy. Can you also include the URL you’re trying to access?

If you’re trying to access a resource at a different domain, you may want to consider a JSONP request instead. See the jQuery AJAX documentation for a discussion of how to use JSONP.

I think if you combine knowing the URL you’re trying to access along with Justin and mohlsen’s suggestions, I think we can help.