select record from ajax modal popup (user controll )to populate fields

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C#

ASP.NET

Ajax

I have created usercontroll(ascx) in asp .net. Then I have also placed it into content page. In my content page there is a button which shows usercontroll. In ajax modal popup in usercontroll(ascx) there is a gridview where user can select any record from gridview
column( there is view button ).

What I want to do is, as the user selects the record from the gridview by pressing view button(its in user controll ), the modal popup should get closed and asp.net (content page where user controll placed ) should get populated by respective id.

as we usually do it by using popup form to select record in gridview


thanks