使用WPF MVVM模式打开新窗口的最佳实践 [英] Best practices for opening a new window with WPF MVVM pattern

问题描述

一段时间以来，我一直在想...从另一个视图模型打开新窗口(视图和视图模型)的最佳实践是什么?如果我们牢记打开新窗口的视图模型不知道该视图的存在(应该如此).

I've been wondering about this for a while... What's the best practice for opening a new window (view & viewmodel) from another viewmodel IF we keep in mind that the viewmodel which opens the new window is not aware of the existence of that view (as it should be).

谢谢.

推荐答案

我不使用ViewModel打开另一个View/ViewModel.这是控制器的责任. ViewModel可以通知控制器(例如，通过事件)用户希望看到下一个View.控制器借助IoC容器创建View/ViewModel.

I don't use the ViewModel to open another View/ViewModel. This is in the responsibility of a Controller. The ViewModel can inform the Controller (e.g. via Event) that the user expects to see the next View. The Controller creates the View/ViewModel with the help of an IoC Container.

WPF应用程序框架(WAF)的ViewModel(EmailClient)示例应用程序中显示了该方法的工作原理 .

How this works is shown in the ViewModel (EmailClient) sample application of the WPF Application Framework (WAF).

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