FlowPanel Vertical Scroll

I have a flowpanel that I'm dynamically adding usercontrols to. I want it to keep adding them and use a vertical scroll bar. It instead wraps them to the top and places a horizontal scroll bar. I'm sure I'm just missing something, but how do I get it to do vertical scrolling?

From stackoverflow

• I figured out what I did. I had the flow direction set to TopDown, it needed to be set to LeftRight.

  Sometimes I feel like a moron.

  BFree : +1 for good laugh at someone else's expense.

  dotjoe : To me, TopDown sounds like it would be what you want. Maybe flowdirection means something else to the designer of the flowpanel.

  Bart : I agree with Joe, the name of that attribute is confusing