title: Using masked text box to validate input
body: <p>Hi I am using the following mask string to ensure user enters a valid phone no</p>
  
  <p>(99)-00000000 </p>
  
  <p>which should  work fine for mobile as well as regional land line numbers in Australia</p>
  
  <p>However I have encountered a problem that User can get away without entring all the digits</p>
  
  <p>I understand that 9 represents an optional digit between 0 and 9 and 0 represents a required digit between 0 and 9</p>
  
  <p>So how come if I dont enter all last eight mandatory digits the program still display results like </p>
  
  <p>(03)-6474</p>
  
  <p>(03)-   63799</p>
  
  <p>(02)-1 38 390</p>