The gridview fired event rowupdating which wasnt handled
Raise Post Back Event(String event Argument) 13 System.
Raise Post Back Event(IPost Back Event Handler source Control, String event Argument) 13 System.
Handle Event(Event Args e, Boolean causes Validation, String validation Group) 611 System.
Raise Post Back Event(String event Argument) 205 System.
The Grid View binds to data, and allows someone to delete a record: This event lets you tell the grid what how to do that.