Introduction - If you have any usage issues, please Google them yourself
TreeView Double-click the node without changing the node collapse/expand state, Microsoft in the TreeView control when given a free hand to make automatic double-click the node expand/collapse nodes. However, if the user-defined NodeMouseDoubleClick event, and do not want to change the node expanded/collapsed state, it can not directly achieve this effect. Can be achieved by way of Quxianjiuguo purposes.