Datagridview cellvalidating cancel updating multiple values

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I need a method of stopping the user from leaving a row if there is invalid data in it (e.g., a field that cannot be null is).

What happens is the highlighted cell remains at the row/column of the cell with the cancelled edit. Data Grid View Cell Validating Event Args) Handles dgv Actions. Name '..procedure's name Dim flg Debug As Boolean = False '...debug/test purposes only Dim flg Cancel As Boolean = False Try If dgv Actions. Please suggest on what event and how can i do such validation. In many places in my application, I have a Data Grid View which users can either enter data into or use as a method of navigation in a master/detail form view.private void data Grid View1_Cell Validating(object sender, Data Grid View Cell Validating Event Args e) void data Grid View1_Cell End Edit(object sender, Data Grid View Cell Event Args e) And Voila!I have been struggling with two Data Grid View issues.

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