title: Scrolling text inside a textbox
body: <p>I have a WPF app with a textbox that I'm sending text to throughout the run cycle of the app.
  As I'm feedign data to the text box to give updates from the app I want the text inside the textbox to scroll down with the data. Right now the scroll bar stays at the top of the textbox and I have to scroll down to see what has been inserted into the control. How do i eneable it so I don't have to scroll down to see the text?</p>