You are creating an ASP.NET application by using the .NET Framework 3.5.

A Web form in the application needs to call a Web service. You place the following code segment in the Page_l_oad event of the form.

AddOnPreRenderCornpleteAsync (

new BeginEventHandler (BecrinCallWebService) ,

new EndEventHandler(EndCallWebService)

);

You need to ensure that the BeginCallWebService and EndCallWebService routines are called when the page is accessed.

What should you do?

A.
Move the code segment to the Prelnit event handler.

B.
Add the AsyncTimeout = “0” attribute to the Page directive.

C.
Add the Async=”True” attribute to the Page directive.

D.
Move the code segment to the PreRender event handler.

Explanation:
See also:http://www.c-sharpcorner.com/UploadFile/rmcochran/Multi- threadedAsynchronousProgramming07262007012530AM/Multi- threadedAsynchronousProgramming.aspx