这种情况适合DI吗？-IsthiscasesuitableforDI?

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When I build collection of these items in MainViewModel, is it OK to instantiate ItemViewModels manually, or should it be delegated to DI container?

当我在MainViewModel中构建这些项的集合时,可以手动实例化ItemViewModels,还是应该委托给DI容器?

You could certainly construct the ItemViewModel objects "manually" using the new operator if that's what you are asking. There is nothing wrong with this approach. Why would you would you bother to use a container to create these if you don't have to?

你当然可以使用new运算符“手动”构造ItemViewModel对象,如果这就是你所要求的。这种方法没有错。如果你不需要,你为什么要费心用容器来创建它们呢?

If an ItemViewModel has some dependencies, the MainViewModel will also have these dependencies as it is the class that knows how to create ItemViewModels.

如果ItemViewModel有一些依赖项,MainViewModel也将具有这些依赖项,因为它是知道如何创建ItemViewModel的类。

So you could basically inject the MainViewModel with whatever dependencies it and the ItemViewModel class have.

所以你基本上可以为MainViewModel注入它和ItemViewModel类所具有的任何依赖关系。