问题描述
我有类型的对象列表＆LT; SPSection＆GT; 的 SPSection 是包含自定义类字符串和列表＆LT; SPListItem＆GT; ， SPListItem 是SharePoint对象重新presenting一个项目。
I have an object of type List<SPSection>, the SPSection is a custom class that contains a string and a List<SPListItem>, SPListItem is a SharePoint object representing an item.
我要存储这个在的ViewState ，但我不知道如何做到这一点。有没有办法序列化此或将其转换为一些二进制字符串，这样我就可以把它放在一个的ViewState 。同样来自的ViewState ，我怎样才能将其转换回列表＆LT获取值回来的时候; SPSection方式＆gt;
I want to store this in a ViewState, but I don't know how to do this. Is there a way to serialize this or convert it to some binary string, so that I could put it in a ViewState. Also when getting the value back from the ViewState, how can I convert it back to List<SPSection>.
感谢
推荐答案
别这样做。 SPListItem 实例不能保留请求之间。它们取决于各自的 SPList 实例，而这又取决于的SPWeb + 的SPSite ，自动两种实例化，并通过 SPContext 。
Don't do this. SPListItem instances cannot be retained between requests. They depend on the respective SPList instance, which in turn depends on SPWeb + SPSite, both instantiated automatically and provided through SPContext.
你可以做的是保留项目 ID 取值请求之间。您的自定义类需要是二进制序列化，即标有 [Serializable接口] 接口。然后你只存储一个给定的键进入视图状态下，你的对象：的ViewState [MyObjects] = myObjects;
What you can do is retain item IDs between requests. Your custom classes need to be binary serializable, i.e. marked with the [Serializable] interface. You then just store your object under a given key into the view state: ViewState["MyObjects"] = myObjects;.
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