主题：目录树控制表数据

Dim trv As WinForm.TreeView = e.Form.Controls("TreeView1")
Dim pd As WinForm.TreeNode = trv.SelectedNode
If pd.Level = 2 Then
    pd = pd.ParentNode
End If
Dim i As Integer
Do
    i = i+ 1
    Dim nm As String  =  "权限" & i
    If pd.Nodes.Contains(nm) = False
        Dim nd As WinForm.TreeNode = pd.Nodes.Add(nm)
        Dim dr As DataRow = DataTables("菜单目录").AddNew()
        dr("子菜单") = pd.name
        dr("权限") = nm
        trv.SelectedNode = nd
        trv.BeginEdit
        Exit Do
    End If
Loop
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