How to use PageMethods in .net

PageMethods Example

Lets look at a simple example of how to use PageMethods.

The things you need to do in your code behind is add

• using System.Web.Script.Services;

If you want to call WebService then you have to use

• using System.Web.Services;

In .Cs(Code behind) file write the code

[ScriptMethod, WebMethod]

    public static string callLogoff()
    {
        // to do your code 
        return "what you want"
    } 

In ASPX Page

• Add scriptmanager this within form method and make

  EnablePageMethods="true"

• Now write script method within head tag

       function closesession() {
           if (window.event.clientY < 0) {
               PageMethods.callLogoff();
               alert("Thank you for Visiting. Logging out now.....")
           }
       }
  

• In body tag add 

onbeforeunload="closesession()"



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Hope this will help you.