Finding Number from the String

Protected void ChkNumFromString()

{

  Regex re = new Regex(@"\d+");

  Matchm = re.Match(txtNumbers.Text);

  if(m.Success)

  {

   lblResults.Text = string.Format("RegEx found " + m.Value + " at position " + m.Index.ToString());

  }

  else

  {

    lblResults.Text = "You didn't enter a string containing a number!";

  }

}