title: WPF Graphing / Charting control
body: <p>I want to produce an interactive chart - so far I've found <a href="http://graphsharp.codeplex.com/Release/ProjectReleases.aspx?ReleaseId=28088" rel="nofollow noreferrer">GraphSharp</a> which looked very promising, however I've found myself struggling due to lack of documentation and a difficult to understand sample.</p>
  
  <p>All I need is to be able to place arbitrary WPF controls as my "nodes", have arrows joining them and be able to collapse / expand parts of the tree (users dont need to be able to move controls or anything like that).</p>
  
  <p>None of the above strikes me as particularly complex (especially not in WPF), and I don't need anything fancy, however I'm aware that getting this bug free and behaving nicely could still end up take me a fair amount of time.</p>
  
  <p>Is there a WPF layout control / library which can help me out with this, or am I better off creating my own?</p>