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.

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.

One may also ask, how does AutoMapper work in 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.

Subsequently, question is, 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).

Where is AutoMapper configuration?

ΒΆ 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.

Is AutoMapper case sensitive?

2 Answers. The trunk version is now default case-insensitive, and supports multiple naming conventions (camelCase, lowercase_underscore, etc). Look for this in the next version of AutoMapper, which should drop in a couple of days.

What are DTOs in 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. For example, below is an Entity class or a business class.

What is Mapper MVC?

AutoMapper is an external component that helps in creating a mapping between a source and destination model types. Once the mapping is created then the source model object can be converted to a destination model object with ease and with less cluttered code.

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.”.

What is DTO in Entity Framework?

Introduction. Suppose you work with an ORM (e.g.: Entity Framework) and you usually use DTO (Data Transfer Object) pattern to transfer data. When creating a DTO class from a binding table, you need most of mapped properties, so that you must define them again in your new class.

How do I set up entity framework?

Prerequisites. Visual Studio 2017. Create an MVC web app. Open Visual Studio and create a C# web project using the ASP.NET Web Application (. Set up the site style. Install Entity Framework 6. Create the data model. Create the database context. Initialize DB with test data. Set up EF 6 to use LocalDB.

Is EF core faster than ef6?

Entity Framework (EF) Core was a complete rewrite from the tried and tested EF6. One of the most touted benefits EF Core has over EF6 is improved performance. Using real benchmarks, I will use worked examples to demonstrate whether Entity Framework 6 or Entity Framework Core performs the best.

What is Entity Framework C#?

ADO.NET Entity Framework is an Object/Relational Mapping (ORM) framework that enables developers to work with relational database. Using the Entity Framework, developers issue queries using LINQ, then retrieve and manipulate data as strongly typed objects using C# or VB.Net.