我认为这是TreeView中的错误（ http://social.msdn.microsoft.com/Forums/zh-美国/ winforms / thread / 9d717ce0-ec6b-4758-a357-6bb55591f956 / ）。您需要对树视图进行子类化并禁用双击消息才能对其进行修复。像这样：

This is a bug in the TreeView I think (http://social.msdn.microsoft.com/Forums/en-US/winforms/thread/9d717ce0-ec6b-4758-a357-6bb55591f956/). You need to subclass the tree view and disable the double-click message in order to fix it. Like this:

public class NoClickTree : TreeView
    {
        protected override void WndProc(ref Message m)
        {
            // Suppress WM_LBUTTONDBLCLK
            if (m.Msg == 0x203) { m.Result = IntPtr.Zero; }
            else base.WndProc(ref m);
        }              
    };

当然，如果这样做，您将不再能够使用双击隐喻在树视图中查看其他内容（例如，双击节点以启动属性页等）。

Of course if you do this you'll no longer be able to use the double-click metaphor in the tree-view for other things (such as double click a node to launch a property page, or something).