1.protected sub page_preinit(byval sender as object, byval e as system.eventargs) handles me.preinit
如果有masterpage的話，在這里執(zhí)行masterpage里面的page事件，事件順序在這篇文章里有寫道

1.protected sub page_init(byval sender as object, byval e as system.eventargs) handles me.init
2.protected sub page_initcomplete(byval sender as object, byval e as system.eventargs) handles me.initcomplete
3.protected sub page_preload(byval sender as object, byval e as system.eventargs) handles me.preload
4.protected sub page_load(byval sender as object, byval e as system.eventargs) handles me.load
5.protected sub page_loadcomplete(byval sender as object, byval e as system.eventargs) handles me.loadcomplete
6.protected sub page_prerender(byval sender as object, byval e as system.eventargs) handles me.prerender
7.protected sub page_prerendercomplete(byval sender as object, byval e as system.eventargs) handles me.prerendercomplete
8.protected sub page_savestatecomplete(byval sender as object, byval e as system.eventargs) handles me.savestatecomplete