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Evidenziare Testo TextBox4.Select(0, TextBox4.Text.Length) Private Sub TextBox4_LostFocus(ByVal sender As Object, ByVal e As System.EventArgs) Handles TextBox4.LostFocus If Not IsDate(TextBox4.Text) Then TextBox4.Focus() TextBox4.Select(0, TextBox4.Text.Length) Beep() End If End Sub |