ASP.NET AJAX Page Methods (1) Intro

• By using page methods, the amount of data transferred between client and server will be greatly reduced compared with UpdatePanel
• Using Ajax with web service sometimes seems overkill
• Page methods communicate directly with an ASP.NET AJAX-enabled page and pass JSON request and response messages back and forth, just as WebMethods do in Web services.
• Each code behind method is accessed from the client-side by using the PageMethods proxy class.
• You must set the ScriptManager control's EnablePageMethods property to true
• Need to add "WebMethod" attribute on static methods
• Using page methods when you want to include the method inside a page, you cannot use it with user control
• Since page methods must be static/shared methods, you cannot access any instance member of a class such as controls in the page or ViewState etc.

Using Page Methods in ASP.NET AJAX

Perspectives on ASP.NET AJAX

PageMethods in ASP.Net AJAX

Creating and Consuming ASP.NET AJAX Page Methods