AutoMapperMIT.Collection.EntityFrameworkCore 14.0.1

.NET 6.0 This package targets .NET 6.0. The package is compatible with this framework or higher. 
dotnet add package AutoMapperMIT.Collection.EntityFrameworkCore --version 14.0.1
                    


                    

                
NuGet\Install-Package AutoMapperMIT.Collection.EntityFrameworkCore -Version 14.0.1
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="AutoMapperMIT.Collection.EntityFrameworkCore" Version="14.0.1" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="AutoMapperMIT.Collection.EntityFrameworkCore" Version="14.0.1" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="AutoMapperMIT.Collection.EntityFrameworkCore" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add AutoMapperMIT.Collection.EntityFrameworkCore --version 14.0.1
                    


                    

                
#r "nuget: AutoMapperMIT.Collection.EntityFrameworkCore, 14.0.1"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package AutoMapperMIT.Collection.EntityFrameworkCore@14.0.1
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=AutoMapperMIT.Collection.EntityFrameworkCore&version=14.0.1
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=AutoMapperMIT.Collection.EntityFrameworkCore&version=14.0.1
                    


                            Install as a Cake Tool

<img src="https://s3.amazonaws.com/automapper/logo.png" alt="AutoMapper">

AutoMapper.Collection.EntityFrameworkCore

Automapper.Collection.EntityFrameworkCore will help you when mapping an EntityFramework Core DbContext-object.

NuGet

Configuration examples

  • Usage together with Dependency injection and AutoMapper.Extensions.Microsoft.DependencyInjection package
var services = new ServiceCollection();
services
    .AddEntityFrameworkInMemoryDatabase()
    .AddDbContext<DB>();

services.AddAutoMapper((serviceProvider, automapper) =>
{
    automapper.AddCollectionMappers();
    automapper.UseEntityFrameworkCoreModel<DB>(serviceProvider);
}, typeof(DB).Assembly);

var serviceProvider = services.BuildServiceProvider();

Note: User defined equality expressions will overwrite primary key expressions.

What about comparing to a single existing Entity for updating?

Automapper.Collection.EntityFrameworkCore does that as well through extension method from of DbSet<TEntity>.

Translate equality between dto and EF object to an expression of just the EF using the dto's values as constants.

	dbContext.Orders.Persist(mapper).InsertOrUpdate<OrderDTO>(newOrderDto);
	dbContext.Orders.Persist(mapper).InsertOrUpdate<OrderDTO>(existingOrderDto);
	dbContext.Orders.Persist(mapper).Remove<OrderDTO>(deletedOrderDto);
	dbContext.SubmitChanges();

Note: This is done by converting the OrderDTO to Expression<Func<Order,bool>> and using that to find matching type in the database. You can also map objects to expressions as well.

Persist doesn't call submit changes automatically

How to get it

Use NuGet Package Manager to install the package or use any of the following commands in NuGet Package Manager Console.

PM> Install-Package AutoMapperMIT.Collection.EntityFrameworkCore
Product Compatible and additional computed target framework versions.
.NET net6.0 is compatible.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

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Version Downloads Last Updated
14.0.1 1,888 3/18/2026