有关ASP.NET 2.0自定义控件的

http://www.microsoft.com/china/msdn/library/webservices/asp.net/Internals.mspx?mfr=true

http://www.microsoft.co.ke/china/msdn/library/webservices/asp.net/USdnvs05custwebcon.mspx?mfr=true

WebPage的生命周期：
http://msdn2.microsoft.com/en-us/library/ms178472.aspx