masked textbox validation

Question

Hello, I used to work on the following subject for 3 days.

 

I have a masked textbox event:

 

private void button4_Click(object sender, EventArgs e)
{
      maskedTextBox1.Mask = "999-000-0000";
}

//and the validation of this event:

private void button5_Validating(object sender, CancelEventArgs e)
{
      string text = this.Password //string value
      string pat = @"^9994714711" //code to match
      Regex itsme = new Regex(pat, RegexOptions.IgnoreCase);
      Match itsme2 = itsme.Match(text);
      if (itsme2.Success) { }
      else
       {
              MessageBox.Show("Something wrong happend, no match", "Error");
              e.Cancel = true;
        }
}

 

I recieve allways Error-Messages

Can somebody help me?