Binding collection of custom classes to TreeView

Question

I\'m trying to determine the best way to accomplish binding a Collection of a custom class to a TreeView.

I currently have two custom classes, one held in a Collection,

Answer 1

When dealing with a TreeView, I usually end up generating a wrapper class that inherits from TreeNode and which holds the actual object that I'm displaying as the node. That way I can bind to the TreeView, get the heirarchy I need, and my business classes don't actually have to subclass a UI component. It works nicely when handling the TreeView events as well, because you can just inspect the node for its type and different typed nodes can be handled differently - display a different UI or whatever.

private class FooNode : TreeNode
{
    public FooNode(Foo foo)
    {
        this.Text = foo.ToString(); //Or FriendlyName
        this.Foo = foo;
        this.Foo.Bars.ForEach(x => this.Nodes.Add(new BarNode(x)));
    }

    public Foo Foo
    {
        get;
        private set;
    }
}

private class BarNode : TreeNode
{
    public BarNode(Bar bar)
    {
        this.Text = bar.ToString(); //Or FriendlyName
        this.Bar = bar;
    }

    public Bar Bar
    {
        get;
        private set;
    }
}

This example may be exactly what you mean by your second option. In that case, I vote for the second option!