title: Scrollable TextBox in WP7
body: <p>I have one text box in which the user can enter text as long as he wants.
  The problem i'm facing is that if the text is more than the height of the textbox, then i can't scroll the text.</p>
  
  <p>For this i tried putting the textbox in scroll viewer, which solved this problem but created  a new one,the scroll viewer doesn't scroll automatically while typing when the text gets more than the height of the scroll viewer.</p>
  
  <p>Any idea how to do this. 
  Note:- It should function something like TextArea in iPhone/iPad.</p>
  
  <p>Thanks</p>