private void OPasswordTextBox_Enter(object sender, EventArgs e)
 {
     if (OPasswordTextBox.Text == "")
     {
         OPasswordCueText.Hide();
     }
 }
 private void OPasswordTextBox_Leave(object sender, EventArgs e)
 {
     if (OPasswordTextBox.Text == "")
     {
         OPasswordCueText.Show();
     }
 }
 private void OPasswordCueText_Click(object sender, EventArgs e)
 {
     if (OPasswordTextBox.Text == "")
     {
         OPasswordCueText.Hide();
         OPasswordTextBox.Focus();
     }
 }