Ajax Update panel not working with xhtmlConformance mode="Legacy" in web.config

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Dear Mentors,

I am trying using Ajax Update Panel to update my gridview without using postback.
But surprised to see that its not working with

xhtmlConformance mode="Legacy" in web.config. So i commented this tag in Web.config
but after that my CSS for the GridView is not working.

Can you please suggest me solution.

Posted 24-Jan-13 19:54pm

gouravkaila

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gouravkaila 26-Mar-13 8:01am

Hello mentors,

Please suggest.Is there any way to set xhtmlConformance ="Transitional"
for a particular page while keeping xhtmlConformance ="Legacy" for the whole site???

The issue is because my project is a vs2003 to vs2010 converted project.

When i use xhtmlConformance ="Legacy" the postback of update panel no longer work as asynchronous postback as the scriptmanager.IsInAsyncPostBack comes out false for every __dopostback on update panel while the same comes out true if i dont use "Legacy"

Help please.

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