I got some problem by doing this:
I'd taken a gridview and bound it with data source and added command field 'edit,update, cancel'.
I made a redirection on this page by enabling post back of a dropdownlist like this:
if (taskmanager.SelectedItem.Text == "Contacts")
on running this page when i click on edit column i get following error
Why I'm getting this error?
and How to overcome from this?
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