ASP. NET network calling methods: ispostback, iscallback, iscrosspagepostback.

It is necessary to know how to call ASP. NET page: called by the original request (http get), http post, and cross-page sending (http post) from other pages, or from other pages (UseTransferMethod or use the callback in the browser.

ASP. NET web pages can be called in the following ways:

• Ispostback

• Iscrosspagepostback

• Iscallback

 

The following table lists the page call methods and their correspondingPageAttribute Value.

Call Method	Attribute Value
original request	set ispostback false . set iscallback to false .
sending back	set ispostback true . set iscallback to false .
Cross-page sending	set ispostback false . set iscrosspagepostback true . set iscallback false .
Callback	SetIspostbackSetFalse. SetIscallbackSetTrue.

Reference: How to: determine how to call ASP. NET web pages
Http://msdn.microsoft.com/zh-cn/library/ms178141 (V = vs.100). aspx