有什么方法可以在双击后禁用展开TreeNode吗？？谢谢 最佳答案 privateboolisDoubleClick=false;privatevoidtreeView1_BeforeCollapse(objectsender,TreeViewCancelEventArgse){if(isDoubleClick&&e.Action==TreeViewAction.Collapse)e.Cancel=true;}privatevoidtreeView1_BeforeExpand(objectsender,TreeViewCancelE