title: Obtaining caret position in TextBox
body: <p>How to get caret position (x, y) in the visible client zone in TextBox control? I need to add an auto complete feature to the text box.</p>
  
  <p>I've found <a href="https://stackoverflow.com/questions/1053539/finding-the-position-of-the-caret-in-a-textbox">solution for WPF</a>, but it can't be applied in Silverlight.</p>