問題描述
我在這里幾乎沒有什么可做的.我無法在本地重現此內容，但是當用戶收到錯誤消息時，我會收到自動電子郵件異常通知:
I have very little to go on here. I can't reproduce this locally, but when users get the error I get an automatic email exception notification:
Invalid length for a Base-64 char array.
at System.Convert.FromBase64String(String s)
at System.Web.UI.ObjectStateFormatter.Deserialize(String inputString)
at System.Web.UI.ObjectStateFormatter.System.Web.UI.IStateFormatter.Deserialize(String serializedState)
at System.Web.UI.Util.DeserializeWithAssert(IStateFormatter formatter, String serializedState)
at System.Web.UI.HiddenFieldPageStatePersister.Load()
我傾向于認為分配給視圖狀態的數據存在問題.例如:
I'm inclined to think there is a problem with data that is being assigned to viewstate. For example:
List<int> SelectedActionIDList = GetSelectedActionIDList();
ViewState["_SelectedActionIDList"] = SelectedActionIDList;
如果不能在本地重現錯誤，就很難猜測錯誤的來源.
It's difficult to guess the source of the error without being able to reproduce the error locally.
如果有人遇到過這個錯誤，我真的很想知道你發現了什么.
If anyone has had any experience with this error, I would really like to know what you found out.
推薦答案
我已經看到這個錯誤是由合適的視圖狀態和過度激進的內容過濾設備/防火墻(尤其是在與 K-12 教育機構打交道時)引起的).
I've seen this error caused by the combination of good sized viewstate and over aggressive content-filtering devices/firewalls (especially when dealing with K-12 Educational institutions).
我們通過在 SQL Server 中存儲 Viewstate 來解決這個問題.在走這條路之前，我建議嘗試限制您對視圖狀態的使用，不要在其中存儲任何大的東西，并為所有不需要它的控件關閉它.
We worked around it by storing Viewstate in SQL Server. Before going that route, I would recommend trying to limit your use of viewstate by not storing anything large in it and turning it off for all controls which do not need it.
在 SQL Server 中存儲 ViewState 的參考:
MSDN - PageStatePersister 概述
ASP 聯盟 - 在 SQL Server 中存儲視圖狀態的簡單方法
代碼項目 - ViewState 提供者模型
References for storing ViewState in SQL Server:
MSDN - Overview of PageStatePersister
ASP Alliance - Simple method to store viewstate in SQL Server
Code Project - ViewState Provider Model
這篇關于導致此“Base-64 字符數組的長度無效"的原因是什么?的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！