一个不错的tree控件源码，好好看看吧，能让你变成时少花点时间-a good source tree controls, a good look at it, will allow you to spend less when they become

一个很不错的学习的程序，里面有树控件，画图控件等，花了我2天时间才想好的呢-A very good learning program, which has tree controls, drawing control, etc., it took me 2 days to think it a good

VB开发设计时间控件源码VB source code development and design time control -VB source code development and design time control

掌握树形控件（Tree Control）、时间日期控件（Date Time Picker）、分割线（Picture Control）的使用；掌握拖拽、移动、释放左键等鼠标事件的使用。-Master tree control (Tree Control), the date and time controls (Date Time Picker), the dividing line (Picture Control) use grasp drag, move, release the left