Foxtable(狐表)用户栏目专家坐堂 → 请问treeview 可指定打开时显示几层吗?


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主题:请问treeview 可指定打开时显示几层吗?

帅哥,在线噢!
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  发帖心情 Post By:2017/8/5 8:57:00 [显示全部帖子]

Dim trv As WinForm.TreeView = e.Form.Controls("TreeView1")

For Each n As WinForm.TreeNode In trv.Nodes
    n.Expand
    For Each n1 As WinForm.TreeNode In n.Nodes
        n.Expand
    Next
Next


Dim lv As Integer = 0
Dim trv As WinForm.TreeView = e.Form.Controls("TreeView1")

For Each n As WinForm.TreeNode In trv.AllNodes
    If n.Level <= lv
        n.Expand
    End If
Next

还可以使用递归实现吗,自己思考一下


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