视图状态是否过期？ [英] Does viewstate expire?

问题描述

让我们假设你有一个不依赖于会话的aspx页面，但并依靠视图状态的回发之间的持久性。

Let's say you have a aspx page that does not rely on session, but does rely on viewstate for persistance between postbacks.

如果一个用户访问该页面，并留下了很长的午餐，将视图状态仍然是有效的，当他返回？

If a user is accessing this page, and leaves for a long lunch, will viewstate still be valid when he returns?

推荐答案

没有ViewState是保留作为回发过程的一部分。你可以，但是，覆盖 Page类的SavePageStateToPersistenceMedium（）和的LoadPageStateFromPersistenceMedium（），以如果需要实现这些行为。欲了解更多信息，请阅读了解ASP.NET的ViewState 。

No ViewState is kept as part of the PostBack process. You can, however, override the Page class's SavePageStateToPersistenceMedium() and LoadPageStateFromPersistenceMedium(), to implement that behavior if desired. For more information read Understanding the ASP.NET ViewState.

注意的页的 ViewState是存储在Session所以如果你的会话过期，ViewState中会丢失。我不会说这是ViewState的过期，但肯定的，它会会话超时后销毁。

Note that Page ViewState is stored in the Session so if your Session expires, the ViewState will be lost. I wouldn't say this is ViewState expiring, but yes, it will be destroyed after Session timeout.

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