rewrite url with Imagebutton cick event not hit

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C#

ASP.NET

hello friends

I have project in asp.net c# in which i am using rewrite path

original path :http://localhost/Item.aspx?productid=13
rewrite path: http://localhost/button/button-11-13.aspx


on item page while i m click on image button , click event not called.

first Application_BeginRequest of global.asax event call

please help me to solve this issue.