怎么得到TreeView中选中节点的路径

如何得到TreeView中选中节点的路径
双击TreeView树的某个节点，如何取得该节点从根开始到选中节点的路径啊。急！！！

[解决办法]

VB.NET code

    Private Sub TreeView1_AfterSelect(ByVal sender As System.Object, ByVal e As System.Windows.Forms.TreeViewEventArgs) Handles TreeView1.AfterSelect        If e.Node IsNot Nothing Then            Me.Label1.Text = e.Node.FullPath        End If    End Sub