How to animate vertically scrolling dynamic text array?

I have an "array" of text which dynamically grows as data comes into the application, and I would like to be able to scroll (programmatically, not via direct user input) that array vertically, as well as add to it. I tried to put the data into a DataGrid but that's not really what I want (unless I heavily modify the DG which I'm hoping to avoid). I don't need the array contents to be selectable, just viewable and I will scroll the "current" array item into view. What WPF element(s) should I be using to display and dynamically grow the list?