No Line Control in Silverlight?

I want to draw a line (neither vertical nor horizontal) that sh开发者_如何学Goould be able to react to a click and drag on the line but I can't even see a line control in Silverlight: there is only Rectangle & Ellipse.

So how would I do the most easily ?

---

There is Line shape in silverlight/Wpf see here, which version of silverlight do you use? It seems Line control available from 3 rd version