根据您的需要，推荐使用自定义 ListItemEventReceiver 解决方案.

Based on your need, custom ListItemEventReceiver is the recommended solution.

如果您需要一个 UI &在其他页面中重用它，然后 WebPart 是要走的路.自定义应用程序页面是此处最不受欢迎的方法.

If you are going to need an UI & reuse it in some other page, then WebPart is the way to go. Custom application page is the least preferred approach here.

这里的一个例子:http://blah.winsmarts.com/2006-7-Sharepoint_2007__List_Events_Practical_Example__Creating_a_rigged_survey.aspx