title: Disable or grey out a node in the TreeNode Editor
body: <p>How do I disable a specific node so the user can not select it. Hiding it for the user is also valid.</p>
  
  <p>I tried the Visible property but that hides the entire tree (all nodes). I only want a few of the nodes disabled/hidden.</p>
  
  <p>C# using Visual Studio 2005 TreeNode Editor.</p>