EP 2009 axGridView error after line selection

[arnold]

Hello everyone.

1. I create axGridView and set AllowDelete = true and AllowEdit = true.
2. Than go to IE and select row in this gridView.
3. I've got an error "Unable to render content due to an error. Please contact your system administrator" from sharePoint.

If AllowDelete = false and AllowEdit = false, than it works OK.

What can be the problem ?