..net 2.0 Visual Studio 2005 beta 2 Gridview

I am hiding and displaying columns in a gridview based upon user's
selection. The Row Updating event is not firing when I have invisible
TemplateField Columns. If I change all columns to Visible, the event fires.
If I make one column invisible, it does not fire. Is this by design? Is
there a work around?

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RickM