TimeBilling是一个三层的数据库应用程序,包括了一个activex dll(商业对象)和一个标准EXE(用户界面)。除了它所演示的所有数据库操作,它也演示了如何用MSHFlexgrid生成一个可编辑的网格-TimeBilling is a three-tier database applications, including a activex dll (business object) and a standard EXE (

3层数据库系统，DLL+标准exe，基于接口编程，事务处理，并包含一个带输入的自定义MSHFlexGrid。-3-layer database system, DLL+ standard exe, interface-based programming, transactions, and includes a custom MSHFlexGrid with input.

Sample for learn 3 tier application