title: Silverlight 4 C# - How to show a popup at text location from custom usercontrol?
body: <p>I'm trying to make a spellcheck function in my application that will show a pop-up of possible corrections in a listbox.</p>
  
  <p>I've not found any decent documentation on how to create and then reference a custom usercontrol, or how to get the coordinates of a specific piece of a bit of text.</p>
  
  <p>Does anybody have some example code on how to make a custom usercontrol with a popup in it and how to then reference and show that popup from the main app? Also figuring out the X and Y offsets of some selected text in a textbox would be great also so I can position the popup to the right and just below the spelling error.</p>
  
  <p>Thanks in advance!</p>
  
  <p>-Sootah</p>