Thank you for writing.
A suitable event for the purpose would be CellValueChanged, which will get triggered once cell value is changed and submitted to the cell.
Another possible way is to use ValueChanged event, which will get triggered when the value of the cell is changed, even not yet submitted to the cell.
Here you can see the event sequence: http://www.telerik.com/help/winforms/gridview-editors-events.html
I hope that you find this information useful. Should you have any other questions, do not hesitate to contact us.
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