private void Box_PPEI_VIN_Digits_17_Enter(object sender, EventArgs e)
 {
     Box_PPEI_VIN_Digits_17.SelectAll();
 }
 private void Box_PPEI_VIN_Digits_17_Click(object sender, EventArgs e)
 {
     Box_PPEI_VIN_Digits_17.Focus();
     Box_PPEI_VIN_Digits_17.SelectAll();
 }