如何使树视图不可折叠? [英] How to make a treeview uncollapsable?

问题描述

在WinForms中使用TreeView控件，有没有可以设置隐藏每个节点的折叠节点图标的属性?

Using the TreeView control in WinForms, is there a property that can be set to hide the collapse-node icons for each node?

另外，如何永久展开 TreeView 中的所有节点?

Also, how do I permanently expand all nodes in the TreeView?

推荐答案

您需要处理 OnBeforeExpand 事件并将 Cancel 设置为 true>.

You would need to handle the OnBeforeExpand event and set Cancel to true.

private void OnBeforeExpand(TreeViewCancelEventArgs e)
{
   e.Cancel = true;
}

请记住，这会阻止任何树节点扩展.

Keep in mind that this would prevent any tree node from expanding.

如果您想隐藏+/-"符号，您应该将 ShowPlusMinus 属性设置为 false.

If you want to hide the "+/-" symbols, you should set the ShowPlusMinus property to false.

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