4.如何使用列表控件？.rar 4.如何使用列表控件？.rar-4. How to use the Control List? . Rar 4. How to use the Control List? . Rar 4. How to use the Control List? . Rar

在树形，列表控件顶部显示信息的Message Bar控件，类似于ie中提示安装插件等的消息框-In the tree, a list of controls to display information at the top of the Message Bar control, ie similar to the installation of plug-in prompt message box, etc.