树形组合框下拉列表源代码，仿照CFileDilag的控件，具有使用价值zh-tree portfolio box drop-down list source code, modeled on the CFileDilag Control and usefulness en

带有checkbox框的treeview控件源码，可以自由分发和再次封装-Treeview control box with a checkbox source code may be freely distributed and re-packaging