WinRT 在页面之间传递 ViewModel [英] WinRT Passing ViewModel between pages

问题描述

我有一个两页的 Windows 8 应用程序.一个查看页面和一个设置页面.两个页面使用相同的视图模型.我可以在页面之间传递视图模型来使用它，但是我无法保存状态，因为我在页面之间传递了一个复杂的类型(这与它们如何保持引用有关，并阻止您保存).

I have a two page Windows 8 application. A view page and a settings page. Both pages use the same view model. I can pass the view model between pages to work with it, but then I can not save state because I have passed a complex type between pages (it has to do with how they keep references, and stops you from saving).

所以我想我需要在每个页面上保存并重新加载我的视图模型?我找不到关于什么是最佳做法的好的参考资料.

So I guess I need to save and reload my view model on each page? I can't find a good reference on what is a best practice for this.

推荐答案

通常 WinRT 会在 App.cs 中初始化的 Root 框架中导航.最好在 MainPage 中定义一个 Frame 对象并在此框架内导航所有页面.您的框架数据上下文可以绑定到 ViewModel.

Usually WinRT navigates through Root frame, which initialized in App.cs. It is better to define a Frame object in MainPage and navigate all your pages within this frame. Your frame datacontext can bind to ViewModel.

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