会话状态为StateServer时,viewstate保存在Session中的一些问题

最新推荐文章于 2024-09-29 15:07:50 发布

原创最新推荐文章于 2024-09-29 15:07:50 发布 · 1.4k 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#session #function #object #string

.NET 专栏收录该内容

36 篇文章

订阅专栏

博客介绍了不同会话状态下页面状态的处理方法。当会话状态为InProc时，展示了LoadPageStateFromPersistenceMedium和SavePageStateToPersistenceMedium函数代码；当会话状态为StateServer，页面Load报错，给出了相应解决方法及对应函数代码。

会话状态为:InProc

Protected Overrides Function LoadPageStateFromPersistenceMedium() As Object
        Return Session("kat0020uno4_ViewState")
End Function

Protected Overrides Sub SavePageStateToPersistenceMedium(ByVal viewState As Object)
        Session("kat0020uno4_ViewState") = viewState
        RegisterHiddenField("__VIEWSTATE", "")
End Sub

当会话状态为:StateServer

页面被Load进来时,报不能被序列化的错误,解决方法如下:

Protected Overrides Function LoadPageStateFromPersistenceMedium() As Object
        Dim formatter As New LosFormatter
        Dim sb As New StringBuilder

        sb.Append(Session("kat0020uno4_ViewState"))

        Return formatter.Deserialize(sb.ToString())
End Function

Protected Overrides Sub SavePageStateToPersistenceMedium(ByVal viewState As Object)
        Dim vsString As String
        Dim writer As New StringWriter
        Dim formatter As New LosFormatter

        formatter.Serialize(writer, viewState)
        vsString = writer.ToString
        Session("kat0020uno4_ViewState") = vsString
        RegisterHiddenField("__VIEWSTATE", "")
End Sub