C# 如何将ViewState的值读入变量？

我在字段中声明了一本词典，例如：

Dictionary<String, string[]> operationDetails = new Dictionary<string, string[]> { };

现在，我想读取此变量并将其存储回

operationDetails

：

operationDetails = ViewState["operationDetails"];

但是，这会返回一个错误，即无法将对象转换为字典。我尝试了

Convert.ToDictionary

，但这样的语句并不存在

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如何将此视图状态读回变量？

必须将视图状态转换回其原始数据类型

operationDetails = ViewState["operationDetails"] as Dictionary<String, string[]>;

operationDetails=ViewState[“operationDetails”]作为字典；

您必须将ViewState转换回其原始数据类型

operationDetails = ViewState["operationDetails"] as Dictionary<String, string[]>;

operationDetails=ViewState[“operationDetails”]作为字典；

这就是为什么建议使用ViewBag而不是ViewState 它可以避免您在视图中进行重新转换

set in c#   as  ViewBag.operationDetails = operationDetails;
get in razor as operationDetails =ViewBag.operationDetails

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这就是为什么建议使用ViewBag而不是ViewState 它可以避免您在视图中进行重新转换

set in c#   as  ViewBag.operationDetails = operationDetails;
get in razor as operationDetails =ViewBag.operationDetails