I am using the latest AJAX control toolkit (4.1.51116.0). I have a
modalpopupextender, AsyncFileUpload and a gridview inside an update
panel in my web user control (.ascx) page . The modal popup extender
appears and after the upload I want to update the gridview to display
some of the data I read in from the file. I have search Goole forever
and tried many solutions and I cannot figure it out. Please help.