private void Box_PPEI_VIN_Digits_14_TextChanged(object sender, EventArgs e)
 {
     if (Box_PPEI_VIN_Digits_14.Text.Length >= 2)
     {
         Box_PPEI_VIN_Digits_15.Focus();
     }
 }
 private void Box_PPEI_VIN_Digits_15_Enter(object sender, EventArgs e)
 {
     Box_PPEI_VIN_Digits_15.SelectAll();
 }
 private void Box_PPEI_VIN_Digits_15_Click(object sender, EventArgs e)
 {
     Box_PPEI_VIN_Digits_15.Focus();
     Box_PPEI_VIN_Digits_15.SelectAll();
 }