This a full 3-tier dababase application which includes a activex dll project(business objects) and a standard exe(UI). Besides all the database techniques it demonstrates, it also shows how to make MSHFlexgrid a editable grid(with combobox, checkbox,

超市管理系统。 1.解决登录权限问题。 2.解决添加信息时主键为空或主键重复问题。 3.解决外键约束问题。 4.解决录入厂单和销售信息时，商品库存量实时更新问题。 5.灵活设计combobox，datetimepicker控件以及厂单，销售信息录入界面。 6.灵活设计查询统计界面。 7.用户密码修改功能。 -Supermarket management system. 1. To solve the problem registry permissions. 2.