How to set focus after checking a DataGridTextBox in WinForms.

[Eric Hohnbaum]

I'm usng the WinForms DataGrid control and want to validate the phone
fields and put the focus back if an error ocurrs.
I have a Leave message handler attached to the TextBox of the phone
number column, and validate the phone number therein against a regular
expression. If it comes back bad, I want to put up a message and then
set the focus back to that specific text box that they just left which
contains the error.
I run into trouble trying to set the focus back. The text box has a
CanFocus property of false. I've tried calling .Focus() on the text
box but it produces a nasty loopback of being traped and not being abe
to get out of the control from that point.

Does anyone know how to do this?

Thanks,
Glorfindel02

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