Question 1

How does Ninject compare to Microsoft Dependency Injection in .NET Core?

Accepted Answer

Ninject is faster due to code generation and offers more advanced features like contextual binding, but Microsoft's DI is built into .NET Core with easier setup and better integration for modern web apps.

Question 2

How to set up Ninject in an ASP.NET Core 7 application?

Accepted Answer

You typically need to use an extension like Ninject.Web.AspNetCore or manually replace the default IServiceProvider, which involves additional configuration compared to the standard Startup.cs or Program.cs setup.

Question 3

What are the main performance benefits of Ninject over reflection-based DI?

Accepted Answer

Ninject uses lightweight code generation at runtime, which reduces invocation overhead and can lead to 8-50x performance improvements in resolving dependencies, as highlighted in the README.

Question 4

Does Ninject support automatic registration of services without modules?

Accepted Answer

No, Ninject requires explicit binding definitions in modules; it does not have built-in convention-based scanning, though extensions or custom code can add this functionality.

Question 5

Can I use Ninject with .NET 8 and Blazor?

Accepted Answer

Yes, but it requires integration efforts since Blazor defaults to Microsoft's DI. You may need to find or create adapters, which can add complexity to the project structure.

Question 6

What is contextual binding and when should I use it?

Accepted Answer

Contextual binding lets Ninject inject different implementations based on where a service is requested, such as using a specific logger for a module. It's useful for complex applications with varying runtime needs.

Ninject

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