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In questo metodo, ogni volta che si cambia record, su na griglia, la proprieta' RowValidating verifica row.cells e ritorna il valore di una colonna Private Sub dataGridView1_RowValidating(ByVal sender As Object, ByVal e As DataGridViewCellCancelEventArgs) _ Handles dataGridView1.RowValidating ' Calculate the customer ID for offline mode. Currently this is done by handling ' the RowValidating event, but note that this event fires each time focus leaves ' a row. Currently the row index has to be special cased to decide when to perform ' calculate the customerID. Dim row As DataGridViewRow = dataGridView1.Rows(e.RowIndex) ' Only want to calculate the CustomerID if it hasn't been calculated. row.Cells(1).Value row.Cells("CustomerID").Value.ToString |