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Enabled = False End Sub Private Sub btn New_Click(By Val sender As System. Handle Error(ex) End Try End Sub Private Sub btn Delete_Click(By Val sender As System. Purchaseorders.check Purchase Order ID(CInt(Purchase Order ID)) If check Purchase Order ID = 0 Then Dim msg Result As Dialog Result = Dialog Result. Show("Please enter required fields", "POS", Message Box Buttons. Handle Error(ex) End Try End Sub Private Sub Clear() Purchase Order ID = 0 dtp Purchase Date.

This, therefore, undoes any action you perform in the handler.

I understand that the impact in performance should be irrelevant when using simple validation and conditional highlighting rules but I would as much prefer it not to run useless code everytime the user moves to another cell if it can be avoided.

Thanks, I'm using Cell Value Changed currently on a grid with custom validation and have had no problems with display or anything else.

I used this event because I wanted to fire off a certain order of events, but only when the user changes the value of a cell.

I have not noticed much in the way of a performance hit (tested with 100 - 5000 rows).

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