如何将ViewContainerRef注入服务? [英] How can I inject ViewContainerRef into a service?

问题描述

我正在尝试将ViewContainerRef注入服务，但收到错误No provider for ViewContainerRef!.我发现了此 PR，它完全满足了我的需求，而且似乎具有被合并.

I'm attempting to inject ViewContainerRef into a service, but am receiving error No provider for ViewContainerRef!. I found this PR, which addresses exactly what I'm after and it appears to have been merged.

请注意，我知道如何通过使用占位符使用此.

Note that I am aware of how to achieve this by using a placeholder using this.

推荐答案

服务对任何视图都是完全不可知的.如果要使服务与特定视图关联，则应将其添加到特定父组件/指令内的提供程序列表中，并将ViewContainerRef作为参数传递给服务的方法之一.

Services are meant to be completely agnostic to any view. If you are trying to have a service associated with a particular view, then you should add it to the providers list within a specific parent component/directive and pass the ViewContainerRef as an argument into one of the service's methods.

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