c# - GetNavigationState 不支持传递给 Frame.Navigate 的参数类型的序列化

Question

我正在为 Surface 应用程序使用 WinRT 和 Prism。暂停时出现此异常。GetNavigationState 不支持传递给 Frame.Navigate 的参数类型的序列化

Answer 1

很可能您在某处将复杂类型传递给 Navigate()，并且该类型无法序列化。

路易斯·坎特罗 (Luis Cantero) 的回答 here :

To enable serialization of the frame's state using GetNavigationState, you must pass only basic types to this method, such as string, char, numeric, and GUID types. If you pass an object as a parameter, an entry in the frame's navigation stack holds a reference on the object until the frame is released or that entry is released upon a new navigation that diverges from the stack. In general, we discourage passing a non-basic type as a parameter to Navigate because it can’t be serialized when the application is suspended, and can consume more memory because a reference is held by the frame’s navigation stack to allow the application to go forward and back.

另见 Exception when calling SuspensionManager.SaveAsync()

和http://www.damirscorner.com/UsingSuspensionManagerForSavingApplicationState.aspx