see a better method:Is it possible to prevent a Web form from scrolling to the top of the page when it posts back to the server? http://www.wintellect.com/resources/faqs/default.aspx?faq_id=1&page=7
调试欢乐多
以至造成滚动条跑到初始位置。
但实际要求autopostback必须为true.