PowerBuilder中目录树的探讨

Directory Tree Research in PowerBuilder

在管理信息系统中,经常会用到无限级的树形结构,如学校班级管理、物品分类等等。它看起来很像窗口形状,在此通过一个案例,加深对TreeView理解。

In manage informationsystem,we often use unlimited class of tree structure.For example：class management in school or classify of goods,etc.It looks like Windows style.Here we will aggravate the comprehension to TreeView through a case.