Hi,
If you don’t want the user set the focus on second column, there are two events need to be override: SetCurrentCellAddressCore and SetSelectedCellCore.
Please refer to this FAQ, it shows the full example about restricting users from setting focus.
1.How do I restrict users from setting focus to a specific cell?
http://social.msdn.microsoft.com/Forums/en-US/winformsdatacontrols/thread/a44622c0-74e1-463b-97b9-27b87513747e#Faq1
Best regards,
Ling Wang
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