主题：目录树节点图标如果想不同层级设不同的节点图标该怎么设？

参考这个：
 
http://www.foxtable.com/help/topics/2302.htm
http://www.foxtable.com/help/topics/0901.htm
 
Dim trv As WinForm.TreeView = e.Form.Controls("TreeView1")
For Each nd As WinForm.TreeNode In trv.AllNodes
    Select Case nd.Level
        Case  0
            '设置图标
        Case  1
            '设置图标
    End Select
End