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Map a Complex Object to a List of Objects using AutoMapper

by DiponRoy

Conversion of complex object to a list of objects

A Generic Mapper with Value Tuples and Generic Tests.

by George Swan

This piece illustrates how to construct a simple generic mapper that will copy every property value from one class to another where the name and type of the property is the same in both classes; it goes on to suggest a way of constructing generic tests that can be used for any instance of the

Validate Automapper Configurations with AssertConfigurationIsValid

by Alessandro Magistroni

How to validate Automapper configuration using AssertConfigurationIsValid

Automapper 3.2.1 The Call is Ambiguous Between the Following Methods or Properties

by OwenDavies

A fix for people experiencing the same issue with AutoMapper 3.2.1

Latest Articles

Validate Automapper Configurations with AssertConfigurationIsValid

by Alessandro Magistroni

How to validate Automapper configuration using AssertConfigurationIsValid

Map a Complex Object to a List of Objects using AutoMapper

by DiponRoy

Conversion of complex object to a list of objects

AutoMapper Runtime Mapping Control via IMappingOperationOptions

by Adam Flow

A short look into the possibilities of AutoMapper's operation options

Automapper 3.2.1 The Call is Ambiguous Between the Following Methods or Properties

by OwenDavies

A fix for people experiencing the same issue with AutoMapper 3.2.1

All Articles

AutoMapper

Map a Complex Object to a List of Objects using AutoMapper

26 Jul 2022 by DiponRoy

Conversion of complex object to a list of objects

Mapping expressions Expression<Func<UserVM, object>> to Expression<Func<UserVM, object>>

18 Jan 2016 by Sascha Lefèvre

I don't know if it can be done with AutoMapper. But this is how you could do it yourself, not including the Repository-call. There's a generic and non-generic version of the mapping-method; I think you should be able to use the generic one.using System;using...

entity-framework

Field to field mapping between list of dynamic and list of class with automapper

7 Feb 2017 by Richard Deeming

Assuming you want a direct mapping from one type to the other, something like this should work:static void CreateDynamicTestClassMap(IMapperConfigurationExpression configuration){ var dynamicObject = new { Name = default(string), Age = default(int) }; var map =...

A Generic Mapper with Value Tuples and Generic Tests.

2 Oct 2019 by George Swan

This piece illustrates how to construct a simple generic mapper that will copy every property value from one class to another where the name and type of the property is the same in both classes; it goes on to suggest a way of constructing generic tests that can be used for any instance of the

How can I use automapper in data access layer while add or updating tables?

12 Jul 2021 by Richard Deeming

The problem is you are loading the entity with the specified ID, then creating a new instance of the class with the same ID, and attaching that new instance to the context. Instead, you should be updating the existing entity instance: Patient...

entity-framework

Validate Automapper Configurations with AssertConfigurationIsValid

13 Mar 2023 by Alessandro Magistroni

How to validate Automapper configuration using AssertConfigurationIsValid

Looking for feedback on AutoMapper

21 Oct 2013 by Super Lloyd

I got some pattern Nazi at work and they are like "you MUST use AutoMapper otherwise we refuse your project"!When I look at AutoMapper I am like meh...I can vaguely see that some people might find it useful in some cases....But, almost on matter of principle myself, I hate pattern Nazi...

Looking for feedback on AutoMapper

21 Oct 2013 by Ranjan.D

Automapper is an amazing small, simple and elegant mapper in this world and moreover it's OpenSource :)

Data from Multiple Tables

28 Oct 2013 by Gopal Rakhal

Hello all, I am very beginner for MVC and started with MVC using Automapper and m stuck in getting data from multiple tables using automapper, is it possible to do so or there is else way to solve same please suggest me...

Data from Multiple Tables

28 Oct 2013 by shek124

Hi,I hope below link will help youLinq to SQL[^]

post method for edit in MVC using Automapper

4 Dec 2013 by ahmed ali mohd

Edit is not saving then changes in MVC4 AutomapperBelow is my code..public ActionResult Edit(int id, User userDetails)// { try { var dbContext = new MyDBDataContext(); Mapper.CreateMap(); ...

post method for edit in MVC using Automapper

1 Mar 2014 by OrianaItSolutions

Hi,Your CreateMap is missing destination class. Also please check the names of properties are in sync in both the classes.

AutoMapper reverse Mapping with child property

15 Jul 2015 by AbhishekDotNet

Hi,I am novice to AutoMapper and trying to implement it.my code :Mapper.CreateMap() .ForMember(d => d.RoleId, o => o.MapFrom(s => s.RoleId)) .ForMember(d => d.Role, o => o.MapFrom(s => s.Roles.Role)).ReverseMap().ForMember(s =>...

Mapping expressions Expression<Func<UserVM, object>> to Expression<Func<UserVM, object>>

17 Jan 2016 by vacho2

I would like to propagate entity framework include properties across architecture.1. Starting at the service layer where these include properties come as an argumentIEnumerable GetUsers(user => user.Classes);2. The method getUsers must translate this expressions from ViewModel to...

entity-framework

How to use automapper in one to many relationship in c#?

14 Feb 2016 by Chitranjan bariya

public class ModuleDTO { public int ModuleID { get; set; } public int ProjectID { get; set; } public string ModuleName { get; set; } public string ModuleVer { get; set; } public bool Active { get; set; } public virtual ProjectDTO...

How to use automapper.net4 DLL in my project

13 Sep 2016 by khosro goudarzi

I am developing a App with pjsip4net (it is an open source project SoftPhone) .I add AutoMaper.Net4 DLL to references in the project .but when I run this code to get project's assemblies AutoMapper.Net4 it is not in list . why ?AppDomain currentDomain =...

Issue with remapping inner lambda in current search LINQ

9 Dec 2016 by Дима_89

I'm using Automapper and three-layered architecture in my application. I have a method which takes Linq query (LambdaExpression) as a parameter. To pass this parameter in another layer I need to remap it. So, I created an ExpressionExtension class, which is responsible for returning remapped...

Expression-Trees

Field to field mapping between list of dynamic and list of class with automapper

7 Feb 2017 by KuntalBose

I have bellow function which returns a list of dynamic object public List getlist() { List d = new List(); d.Add(new { Name = "A", Age = 12 }); d.Add(new { Name = "B", Age = 10 }); ...

Can't map my domain class to resource class when I create a new object using automapper

18 Sep 2017 by fatihkaratay

I have a dotnetcore 2.0 angular project. Inside the project, I have Project, Owner, and Status domain classes. The relationships are like below: 1 Owner can have multiple Projects, 1 Project should have only one status. I use AutoMapper to map those classes in order to create API resources. My...

Automapper mapping problem

24 Jan 2018 by Onur ERYILMAZ

Hi, I have some issues with automapper. I have two objects and I want to convert these. First object; public partial class WorkCommandDocuments { public int ID { get; set; } [Required] [StringLength(300)] public string WorkCommandNumber { get; set; } ...

Automapper mapping problem

24 Jan 2018 by Onur ERYILMAZ

EDIT: I solve this problem with adding default constractor to WorkCommandDoc object.

Mapping between source and destination object which has a common property as enum with different values.

31 Jul 2018 by Member 13466003

I have a source object and destination object with a enum property. One of the member of this enum property is different for each object. But I need to map it using Automapper. How I can achieve it?. example code snippet: Source Class: public class SourceClass { public SourceClassification...

Mapping between source and destination object which has a common property as enum with different values.

31 Jul 2018 by Nathan Minier

Just configure a map for the enums: Mapper.CreateMap().ConvertUsing(val => { switch(val) { case SourceClassification.Required: return DestinationClassification.Mandate; case SourceClassification.Optional: ...

Mapping between source and destination object which has a common property as enum with different values.

31 Jul 2018 by George Swan

You just need to tell AutoMapper to map SourceClass.SourceLevel to DestinationClass.Input. It will map on the value of the enum member so Mandate will map to Required. var config = new MapperConfiguration(cfg => { cfg.CreateMap

Automapper 3.2.1 The Call is Ambiguous Between the Following Methods or Properties

12 Feb 2020 by OwenDavies

A fix for people experiencing the same issue with AutoMapper 3.2.1

Automapper to map two list classes of different structure and also memberwise explicit mapping

1 Jun 2020 by sam_roy

I have 4 classes namely ClassA, ClassADto, ClassAA(inner class to ClassA) and the final Result class. public class InnerA { public int HouseNumber{get;set;} public string StreetName{get;set;} public string State{get;set;} } public class A {...

Automapper to map two list classes of different structure and also memberwise explicit mapping

1 Jun 2020 by sam_roy

Mapper solution is not with me right now.

Automapper to map two list classes of different structure and also memberwise explicit mapping

1 Jun 2020 by Maciej Los

This is not an answer, but i have too many doubts to post it as a comment. 1. I don't understand the reason of creating two classes containing almost the same data, where an ADto should be a base class for A. Take a deeper look at them: ...

How can I use automapper in data access layer while add or updating tables?

12 Jul 2021 by Member 12955507

I am developing an application in MVC5 that has its own data access layer. In data access layer I have tried mapping object for Add/Update operation. I am using the AutoMapper v4.0.30319 Please find below image for see my code. code image ...

entity-framework

How can I pass model to an access data layer/EF core project from a separate .NET web API core project

25 Jul 2023 by Member 13304618

I have a design question; thus, no code samples I am trying to create a Web API Core project that would use an EF Core to communicate with a database. I read about the Data Access design pattern and realize that I have to place a Web API project...

entity-framework

How can I pass model to an access data layer/EF core project from a separate .NET web API core project

25 Jul 2023 by Richard Deeming

Quote: the EF core cannot reference the Web API You've just answered your own question: the mapping needs to be done in a project which has references to both the entity classes and the DTOs you're mapping to. Personally, I'd be inclined to...

entity-framework

Using ClassAssert to check property mappings between different object types

30 May 2014 by User 10132546

Using ClassAssert to check property mappings between different object types

CRUD Opearations using AutoMapper in an MVC Application

26 Nov 2014 by Akhil Mittal

How to do custom mapping and entity to entity mapping with the help of AutoMapper.

5 AutoMapper tips and tricks

3 Sep 2014 by User 6744868

5 useful tips to help get the most from AutoMapper

AutoMapper 4.2.1

18 Jun 2016 by saurabhsharmacs

Migration to AutoMapper 4.2.1

AutoMapper Runtime Mapping Control via IMappingOperationOptions

20 Dec 2021 by Adam Flow

A short look into the possibilities of AutoMapper's operation options

How to use automapper.net4 DLL in my project

13 Sep 2016 by ZurdoDev

If you refer to the documentation, AppDomain.GetAssemblies Method (System)[^], it reads, "Gets the assemblies that have been loaded into the execution context of this application domain."Adding a reference does not actually load the assembly. You would have to be using it in code somewhere...

Automapper list formember

21 Sep 2017 by Richard Deeming

You don't need to map the member; you just need to map both types. Given: namespace Db { public class Order { public List Ship { get; set; } } public class ShipOnly { public string Name { get; set; } } } namespace Dto { public...

Securing Ids on Web Applications

13 Nov 2018 by Vlad Neculai Vizitiu

How to secure Ids on web applications

Configure AutoMapper using custom attributes

6 Jun 2018 by Denis Pashkov

Dynamicly configure IMapper object using custom attributes annotations.

ASP.NET Core with automapper

10 Apr 2018 by xszaboj

How to setup net core with automapper

Dynamic and Multiple Selection

30 Apr 2015 by imad afzal

what i m looking for a solution of Multiple values using MVC.The user at front end have various offices in punjab, sindh, balochistan, KPKThe organization have 1 Main Head Offices in each of the above Provinces i.e. punjab, sindh, balochistan, KPK and than the same organization have...

How to user Automapper for mapping different datatypes fields on two different models

23 Oct 2015 by Kacha Nilkanth

Want to know how I can do mapping while things about mapping two different class with different datatypes fields for inserting and retrieving data from database.class 1 UserModel= public string ProfileImage {get; set;}(viewmodel)class 2 User= public byte[] ProfileImage {get;...

Automapper list formember

21 Sep 2017 by Member 13229879

I want to map list of Dto to other object to using Automapper Source: public class Order { public List Ship { get; set; } } public class ShipOnly { public string Name { get; set; } } Destination public class Order { public...