Beginning Web Development, Silverlight, and ASP.NET AJAX

312
CHAPTER 13 ■ AJAX SCRIPTS AND SERVICES
}
}
WebNext.House.registerClass('WebNext.House', null, Sys.IDisposable);
if (typeof(Sys) !== 'undefined') Sys.Application.notifyScriptLoaded();
You can then ensure that it is correctly and cleanly delivered to the browser by
declaring it as a script that the ScriptManager component will manage for you. Here’s
the markup to achieve this:
Using Web Services from Script
A very powerful facet of the ScriptManager is that it allows you to declare references to
web services. If these services are attributed as scriptable, and thus generate a JavaScript
proxy, the ScriptManager can then initialize everything that is needed for a client to communicate
directly with the service.
For example, consider the following simple web service. Note that it has been attributed
as a [ScriptService]. In order to do this, you’ll need to add a using reference to the
System.Web.Script.Services namespace.
using System;
using System.Web;
using System.Web.Services;
using System.Web.Services.Protocols;
using System.Web.Script.Services;
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[ScriptService]
public class SimpleService : System.Web.Services.WebService {
[WebMethod]
public int AddEm(int x, int y) {