AutoMapper is an object-object mapper which allows you to solve the problem of manually mapping each property of a class with the same properties of another class. Before AutoMapper was introduced if we wanted to assign one object property to another object property then we were following a long procedure.

Keeping this in view, what is an AutoMapper?

AutoMapper is a popular object-to-object mapping library that can be used to map objects belonging to dissimilar types. As an example, you might need to map the DTOs (Data Transfer Objects) in your application to the model objects.

One may also ask, what is AutoMapper in .NET core? AutoMapper is a simple library that helps us to transform one object type to another. It is a convention-based object-to-object mapper that requires very little configuration. The object-to-object mapping works by transforming an input object of one type into an output object of a different type.

Consequently, what is mapping in asp net MVC?

In ASP.NET MVC applications, you have to map values between view model objects and domain model objects in many situations. In such scenarios, you can use AutoMapper for mapping values between objects to objects.In our code we copy values from our View model object ContactViewModel to domain model object Contact.

Where is AutoMapper configuration?

Configuration should only happen once per AppDomain. That means the best place to put the configuration code is in application startup, such as the Global. asax file for ASP.NET applications.

Why do we need AutoMapper?

AutoMapper is an object-object mapper which allows you to solve the problem of manually mapping each property of a class with the same properties of another class. Before AutoMapper was introduced if we wanted to assign one object property to another object property then we were following a long procedure.

How do I set up AutoMapper?

Here is the steps to configure the automapper in asp.net core mvc.
  1. Create the mapping profile class which extends from Profile public class ClientMappingProfile : Profile { public ClientMappingProfile () { CreateMap<R_Logo, LogoDto>().
  2. Create the AutoMapper Configuration Class and add your mapping profile class here.

What is DTO C#?

DTO (Data Transfer objects) is a data container for moving data between layers. They are also termed as transfer objects. DTO is only used to pass data and does not contain any business logic. They only have simple setters and getters.

What is AutoMapper in Entity Framework?

AutoMapper is what is known as an object-to-object mapper, and can selectively map from one class to another, handling any relationships. AutoMapper can also produce LINQ code via its ProjectTo<T> method (see Queryable Extensions).

What is Mapper class in C#?

"AutoMapper is an object-object mapper which allows you to solve the problem of manually mapping each property of a class with the same properties of another class.".

Does AutoMapper use reflection?

When you call CreateMap, AutoMapper uses optimizers to build the code for getting/setting values on source/destination types. Currently, it uses a combination of Reflection. Emit and expression tree compilation. At Map time, it uses the optimized callbacks for interacting with types.

How do I use AutoMapper in .NET core?

How to using AutoMapper on ASP.NET Core 3.0 via Dependency Injection
  1. Install AutoMapper extension from Package Manager in your project.
  2. Register a service in CinfigureServices on Startup.cs.
  3. Create a model and a data transfer object.
  4. Create an AutoMapping class file to register a mapping relation.

What is .NET mapping?

Object-object mapping works by transforming an input object of one type into an output object of a different type. Object-object mapping leads to segregated models, where concerns for each layer can affect only types in that layer. Now let's show how we use AutoMapper on a simple test application.

What is AutoMapper C#?

The AutoMapper in C# is a mapper between two objects. That is AutoMapper is an object-object mapper. It maps the properties of two different objects by transforming the input object of one type to the output object of another type.