What is ASP.NET MVC 4 Dependency Injection please explain step by step

In Object-Oriented Programming paradigm, objects work together in a collaboration model where there are contributors and consumers. Naturally, this communication model generates dependencies between objects and components, becoming difficult to manage when complexity increases.

Dependency Injection in C#

Dependency Injection (DI) is a software design pattern. It allows us to develop a loosely-coupled code. The intent of Dependency Injection is to make code maintainable. Dependency Injection helps to reduce the tight coupling among software components. Dependency Injection reduces the hard-coded dependencies among your classes by injecting those dependencies at run time instead of design time technically. This article explains how to implement Dependency Injection in C# and .NET code.

We have the following ways to implement Dependency Injection.

1) Constructor Injection
2) Property Injection
3) Method Injection

Top - Asp.net core 3.1 , Blazor 3.1 Interview Questions and Answers

Q.1 What is Blazor?

Ans:-

It’s a good and perfect framework by Microsoft for building interactive client-side web UI with the best performance ever in .NET and C# named Blazor. In Blazor We use component-based architecture like other modern web development frameworks Angular or React.

Q. 2 What's new in ASP.NET Core 3.1

Ans:-

Q.3 What is the difference between Transient , Scoped , Singleton , ?

Ans : -

1) Transient – Each time a transient object is requested, a new instance will be created.

2) Scoped – The same object will be used when requested within the same request.

3) Singleton – The same object will always be used across all requests.

Q.4 What is Dependency injection in ASP.NET Core . ?