如何在检查之前禁用treenode? [英] how to disable a treenode before it had been checked?

问题描述

您好！我使用带有某些节点的树状视图，我希望其中的某些节点在检查之前应先禁用，例如enable = false.
我在树视图的Before_Checked事件中使用如下代码，但发现该节点仍然可以单击，有人可以告诉我如何进行更改并使其正常工作吗?

Hello!I use a treeview with some nodes,I want that some of these nodes shoule be disable like enable = false before they were checked.
I use codes like below,in the treeview Before_Checked events but I found the node still can be click ,could anyone tell me how to change it and let it work?THX a lot!

Private Sub aTree_BeforeCheck(ByVal sender As Object, ByVal e As System.Windows.Forms.TreeViewCancelEventArgs) Handles aTree.BeforeCheck
        Dim a As TreeNode
        a = aTree.Nodes(0).Nodes(1)
        a = e.Node
        If e.Node.ForeColor = Color.Gray Then
            e.Cancel = True
        End If
    End Sub

推荐答案

我在此处发布的链接适用于C#，但您可以从 ^ ].

The link that I post here is for C#, but you could get a general idea from it[^].

:sigh::sigh:仍然无法像我想要的那样工作，有人可以帮助我吗? :((

:sigh: :sigh: still not work like what I wanted,anyone could help me? :((

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