C#•2y ago

ASP NET Core default DI-Container, how pass in constructor not-registered parameter? [Answered]

I want to create a Model class using a DI container, services registered in the container are passed to its constructor, and a structure is passed that becomes known only in runtime.How can I make this model class created by the container? In Ninject, I used a Factory Interface for this, how can I implement this in a standard ASP NET Core container? Once again, I want to i can create Model like that: _modelFactory.Create(data);

public class Model
{
  // ITimeService registered in container, data not registered ( creating in runtime )
  public Model(ITimeService timeService, EngineData data)
  {
    
  }
}

public class Model
{
  // ITimeService registered in container, data not registered ( creating in runtime )
  public Model(ITimeService timeService, EngineData data)
  {
    
  }
}

3 Replies

Becquerel•2y ago

why do you want to create the model via DI, rather than a factory class (which is itself injected where needed)? you can use the overloads of AddTransient etc to supply your own factory function (.AddTransient(x => new Model(x.GetService<ITimeService>(), data)) but I would suggest that dependency injection is really meant for injecting dependencies not every single instance of a class you might create

Unknown User•2y ago

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Accord•2y ago

✅ This post has been marked as answered!

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ASP NET Core default DI-Container, how pass in constructor not-registered parameter? [Answered]