【摘要】 对于软件设计中数据的呈现或界面设计,即使是在现代高度完善的软件开发平台上仍然是一项较为复杂的工作。文章讨论了在线考试系统的开发中如何实现试卷库中的试题从数据库到内存的映射,再通过控件的数据绑定来最终完成命题呈现的过程,这是设计在线考试系统的重要环节。针对考试过程中可能存在的试题丢失问题,文章给出了试题的持久化处理方法。更多还原

【Abstract】 How to present view of data being stored in database is one of the key part in software design and is still the complex work even in modern software development technology.In this article we discussed on how to project a examination paper from database to memory and then bind to view controls that present to examinees.To prevent the possibility of missing of examination paper from memory,persistant process should be used.更多还原