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我正在运行一些c＃.net网页与各种gridviews。如果我长时间（通常在一夜之间）将其中的任何一个单独留在网络浏览器中，则当我单击页面上的任何元素时，会出现以下错误。如何优雅地处理ViewState错误？
我不太确定从哪里开始处理问题。如果视图状态已过期，我不介意重置页面，但抛出错误是不可接受的！
Error: The state information is invalid for this page and might be corrupted.
Target: Void ThrowError(System.Exception, System.String, System.String, Boolean)
Data: System.Collections.ListDictionaryInternal
Inner: System.Web.UI.ViewStateException: Invalid viewstate. Client IP: 66.35.180.246 Port: 1799 User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9) Gecko/2008052906 Firefox/3.0 ViewState: (**Very long Gibberish Omitted!**)
Offending URL: (**Omitted**)
Source: System.Web
Message: The state information is invalid for this page and might be corrupted.
Stack trace: at System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidationError) at System.Web.UI.ClientScriptManager.EnsureEventValidationFieldLoaded() at System.Web.UI.ClientScriptManager.ValidateEvent(String uniqueId, String argument) at System.Web.UI.Control.ValidateEvent(String uniqueID, String eventArgument) at System.Web.UI.WebControls.DropDownList.LoadPostData(String postDataKey, NameValueCollection postCollection) at System.Web.UI.WebControls.DropDownList.System.Web.UI.IPostBackDataHandler.LoadPostData(String postDataKey, NameValueCollection postCollection) at System.Web.UI.Page.ProcessPostData(NameValueCollection postData, Boolean fBeforeLoad) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)