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فيديو شرح Cross page posting in asp.net Part 55 ضمن كورس ASP.net شرح قناة kudvenkat، الفديو رقم 55 مجانى معتمد اونلاين
Text version of the video
http://csharp-video-tutorials.blogspot.com/2012/11/cross-page-posting-in-aspnet-part-55.html
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http://csharp-video-tutorials.blogspot.com/2013/08/part-55-cross-page-posting-in-aspnet.html
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Cross page posting allows to post one page to another page. By default, when you click a button, the webform posts to itself. If you want to post to another webform on a button click, set the PostBackUrl of the button, to the page that you want to post to.
Page.IsCrossPagePostBack Property is used to indicate whether the page is involved in a cross-page postback.
The problem with FindControl() method is that, if you mis-spell the ControlID, we could get a runtime NullRefernceException.
In the next video we will discuss about obtaining a strongly typed reference to the previous page, which can avoid NullRefernceExceptions.