The ChangeDetectionStrategy.OnPush does not function properly with a dynamically loaded component

Currently, in my angular4 project, I am working with a dynamically loaded component. I want to use the ChangeDetectionStrategy.OnPush strategy, but it doesn't seem to be effective even though I have confirmed that new input objects are being used. I understand that normal change detection may not work seamlessly with dynamically loaded components. Is there any way to manually trigger the change so that the ChangeDetectionStrategy.OnPush recognizes it?

Answer №1

In short, the answer is no.

However, in more detail (apologies for my limited English proficiency), the automatic change detection of @Inputs is activated when your component is utilized within a template. Angular compiles it and generates a component factory containing the necessary code for managing these change detection processes.

When utilizing a dynamic component, the @Inputs are not employed to connect components within their templates.

Nevertheless, @Inputs serve as public properties of your component, allowing you to still access and modify them. Yet, the change detection mechanism will not recognize these modifications.

I see two potential solutions:

  • You can manually trigger the change detector when changes occur.
  • Alternatively, you can utilize setters instead of directly modifying properties and incorporate the change detector triggering within these setter functions.

Answer №2

Angular4 does not exist, there is only Angular with different version numbers. To learn more about Angular, visit https://angular.io/presskit. You can detect changes in your component by adding an instance of the ChangeDetectorRef class and calling its detectChanges() method when needed. It's always helpful to refer to the documentation for detailed information on such topics.

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