We are using Umbraco 4.7 and we have a client that needs a complex user permissions schema that can't be achieved using the Umbraco permissions system.

I will try to explain the needs:

Here is the tree we are having:

- Content
   - External
       - Sellings
       - Communication
   - Internal
       - TI
       - Comptability

My user, has access to Sellings and TI, so I can't set a StartNode because TI and Sellings are into 2 different parent nodes.

So I decided to hook up on BeforeNodeRender event:

public class CustomApplicationBase : ApplicationBase
{
       public CustomApplicationBase()
       {
            BaseContentTree.BeforeNodeRender += OnBeforeTreeRender;
       }
}

 My method signature is:

private void OnBeforeTreeRender(ref XmlTree sender, ref XmlTreeNode node, EventArgs e)

The result I want to have in my content tree is:

- Content
   - Sellings
   - TI

Is there any way to do this without having to rewrite an entire BaseTree?

Thanks,

Charles