高性能ASP.NET树状列表控件，提高客户端显示目录树效率，分析存在原因-High-performance ASP.NET tree list control to improve the efficiency of the client to display the directory tree analysis there is a reason

TTreeView class: TTreeView to add an expanding and contracting outline to a form. Each node in a tree view control consists of a label and a number of optional bitmapped images. Each node can have a list of subnodes associated with it. By clicking on