Since this is the only means I know of by which to capture the leaving of a cell being edited so I can validate, I'm stuck.If there are no known problems, I will just have to dig deeper...The Cell Validating event handler is where you determine whether the value of a cell in the School Name column is empty. Data Grid View Cell Validating Event Args class to true.If the cell value fails validation, set the Cancel property of the System. This causes the Data Grid View control to prevent the cursor from leaving the cell.I have tried the below code on datagrid View Cellvalidation event but its not working.Hi there, I have a question regarding datagridview in C#. I need to check that only one of the two can be checked.

Private Sub Datagrid1_Cell Validating(By Val sender As Object, By Val e As System.

Minimum Date Time; This is to ensure the limits are OK before the value is set and prevents an Argument Out Of Range error.

I have done the validateion for the datagridview in the cellvalidating event.

Honestly, I can't see a difference, since the Cell Enter event occurs when the cell receives focus, and the e.

Cancel = true (which would be awesome) is not available in this event.