树形控件事件下载PDF选定部分选定部分和子部分整个手册更新时间2026-02-19阅读时长2分钟LabVIEWAPI参考LabVIEW G 双击Generated when a user double-clicks an item in the tree control.拖曳开始Generated when you start a drag from a tree control.拖曳开始？Generated when you start a drag from a tree control.编辑单元格Generated when the user enters new text or changes text in a cell.编辑单元格？Generated when the user enters new text or changes text in a cell but before the new or changed text appears.项关闭Generated when the user closes an item in the tree control to hide any child items under the item.项关闭？Generated when the user closes an item in the tree control to hide any child items under the item but before the item closes.打开项Generated when the user expands an item in the tree control to display any child items under the item.打开项？Generated when the user expands an item in the tree control to display any child items under the item but before the item opens.
双击Generated when a user double-clicks an item in the tree control.拖曳开始Generated when you start a drag from a tree control.拖曳开始？Generated when you start a drag from a tree control.编辑单元格Generated when the user enters new text or changes text in a cell.编辑单元格？Generated when the user enters new text or changes text in a cell but before the new or changed text appears.项关闭Generated when the user closes an item in the tree control to hide any child items under the item.项关闭？Generated when the user closes an item in the tree control to hide any child items under the item but before the item closes.打开项Generated when the user expands an item in the tree control to display any child items under the item.打开项？Generated when the user expands an item in the tree control to display any child items under the item but before the item opens.
双击Generated when a user double-clicks an item in the tree control.拖曳开始Generated when you start a drag from a tree control.拖曳开始？Generated when you start a drag from a tree control.编辑单元格Generated when the user enters new text or changes text in a cell.编辑单元格？Generated when the user enters new text or changes text in a cell but before the new or changed text appears.项关闭Generated when the user closes an item in the tree control to hide any child items under the item.项关闭？Generated when the user closes an item in the tree control to hide any child items under the item but before the item closes.打开项Generated when the user expands an item in the tree control to display any child items under the item.打开项？Generated when the user expands an item in the tree control to display any child items under the item but before the item opens.