6,651 questions
0
votes
1
answer
183
views
What’s the most efficient way to map large entity models to DTOs in ASP.NET Core without using AutoMapper? [closed]
I'm working on a high-performance ASP.NET Core Web API where each request can return hundreds of entity records. Each entity includes multiple navigation properties and nested objects.
Currently, I’m ...
2
votes
1
answer
110
views
.NET / EF Core / AutoMapper causing PostgreSQL "invalid input syntax for type json" error when saving entity
I'm working on a .NET 8 project using Microsoft.EntityFrameworkCore 8.0.7 with PostgreSQL as the database. I have a table that contains a jsonb column, and I'm using AutoMapper to map a DTO to the ...
- 678
1
vote
1
answer
345
views
How to correctly configure the MapperConfiguration?
private readonly IMapper _mapper;
public CreateDepartmentRequestHandlerTests()
{
var config = new MapperConfiguration(cfg => cfg.AddProfile(new CreateDepartmentProfile()));
_mapper = ...
- 11
3
votes
1
answer
1k
views
AutoMapper error: MapperConfiguration does not contain constructor that takes 1 arguments
I am getting an error
Error: CS1729 MapperConfiguration does not contain constructor that takes 1 arguments.
from this code:
var config = new MapperConfiguration(
options =>
{
...
- 51
0
votes
1
answer
71
views
Automapper. ForAllMembers except some members
I'm using automapper 13.0.1 to map one object to another:
CreateMap<CandidateInfoContactDataSendEvent, TechUser>()
.ForMember(dest => dest.PhoneNumber, opt => opt.MapFrom(src => src....
- 311
3
votes
2
answers
1k
views
ASP.NET cannot add AutoMapper service
I installed AutoMapper
<PackageReference Include="AutoMapper" Version="15.0.1" />
and created my profile (AutoMapperConfigurationProfile.cs):
using AutoMapper;
using ...
- 129
3
votes
2
answers
989
views
Missing overload AddAutoMapper(params Assembly[]) in v15 — broke manual registration [closed]
Problem Description
After upgrading to AutoMapper v15.0.1, I encountered the following compile-time error when trying to register AutoMapper manually:
services.AddAutoMapper(typeof(AssemblyReference)....
- 31
0
votes
1
answer
112
views
Automapper maps properties with the same name automatically despite the fact that I explicitly ignore them [closed]
Despite the fact that I explicitly ignore some props - Automapper maps them because source and destination objects have props with the same name (it is known Automapper behaviour).
Logic is usual:
...
- 1
1
vote
1
answer
128
views
How to map two properties into a property which is a single array?
I have two models:
public class HouseDto
{
public DateTime[] ProductionDates { get; set; }
}
and
public class House
{
public string PeriodStart { get; set; }
public string PeriodEnd ...
- 679
0
votes
1
answer
101
views
Automapper with interface as target
I have a scenario where data is mapped using Automapper into some target object.
The logic, that runs this mapping should be tested with unit tests.
Since the target object are quite complex and ...
- 9
0
votes
0
answers
81
views
TargetInvocationException when resolving IMapper on Android Release build in .Net MAUI
I use Automapper (v.14) in my .Net MAUI (v.9) app.
I configure it as per documentation:
mauiAppBuilder.Services.AddAutoMapper(typeof(MappingProfile));
Then I am trying to resolve IMapper object in ...
- 87
0
votes
1
answer
108
views
Conditional map "null" of non-nullable types, enums, and collections with AutoMapper in C#
I'm developing a PATCH REST endpoint to do partial update to an EF Core entity. All properties in the request DTO (EntityRequestDto) are marked as nullable, while the actual entity (Entity) will be ...
- 1,424
-1
votes
1
answer
77
views
MapFrom and ProjectTo fail to populate target property
Given the following EF Core entity class:
[PrimaryKey(nameof(CustomerID))]
[Table(nameof(Customer))]
public partial class Customer
{
[DatabaseGenerated(DatabaseGeneratedOption.Identity)]
...
- 6,183
0
votes
2
answers
196
views
Using DTOs with Polymorphic Models in .NET Core
I am using JsonDerivedType for polymorphic models in .NET Core, and I need to map a hierarchy of complex model objects to a set of DTO objects for serialization. Specifically, I want to use DTOs with ...
- 81
3
votes
2
answers
127
views
C# AutoMapper loses custom HashSet comparer when mapping to an init-only property
I'm experiencing an issue where AutoMapper appears to lose a custom comparer when mapping a HashSet property. I have a DTO that contains a collection of strings and a destination model that expects an ...