Automapper constructusing But everything I have tried is failing or I can only create new instances of the parent object (using ConstructUsing), not map the one in the constructor. I can configure all i need, but stuck on how to combine open generic and custom construct. Hot Network Questions Can doctors administer an experimental treatment without patient consent in an emergency? Will a body deform if there is very huge force acting on it in a specific direction? Is a cable run through a crawl space to the exterior Everything works with simple map (without ProjectTo), but with projection my sql looks like this (doesn't join with employees table) because of Func param, not Expression at ConstructUsing (I got 2 employees with nullable fields): Had the same issue after adding AutoMapper to another project. We use AutoMapper to map from Entities (NHibernate) to DTO's and bac at AutoMapper. This is my profile for the above at the moment Feb 7, 2024 · Dependency Injection Examples ASP. info constructUsing() is mandatory for interfaces and When you make mapper configuration are you using Mapper. Automapper 8 mapping not working properly. Since you have mappings defined for these entities, you could call Mapper. The problem is that AutoMapper configuration is usually singleton. 0 ConstructUsing breaking change. Sometimes, you need to take complete control over the conversion of one type to another. There's a good getting started on the project's wiki. Call constructUsing() and pass in a DestinationConstructor to customize how AutoMapper should construct the Destination before every map operation To migrate, replace all usages of ConstructProjectionUsing with ConstructUsing. ctor(Action1 configure) at I have a scenario where I want to create an object (Calc) which takes some options as a constructor argument. HasValue ? DateOnly. ForAllOtherMembers(x=>x. 0, AddAutoMapper is part of the core package and the DI package is discontinued. Automapper v10 and AutoMapper. ConstructUsing(myConverter); This piece of code does not build with AutoMapper 8, because I have to use expressions. MapperConfiguration. Extensions. Here's my code: void Main() { var mockMapper = new MapperConfiguration(c => { c. There's two solutions for this: 1) Use Automapper statically AutoMapper 8. Initialize or generating an IMapper object? You are receiving this because you authored the thread. ; In the Convert method of your customer type converter, you can recover your parameter(s) from the Seems to me that the ConstructUsing runs after the constructor. ConstructUsing(x => x. This is typically when one type looks nothing like the other, a conversion function already exists, and you would like to go from a “looser” type to a stronger type, such as a source type of string to a destination type of Int32. var dest = Mapper. The constructor set the correct values but ConstructUsing overwrite the values with the original ones. I was using the same versions. ConstructUsing(m => . You will most likely have to find a different solution rather than using AutoMapper. Map on it. If your ORM exposes IQueryable s, you can use AutoMapper’s So what happens here is that you initialize Automapper in a non-static way (isn't clear from your original post, but I could deduct that because my comment seemed to have solved your problem), but you are using Automapper statically within the ConstructUsing method. For cfg. When invoking Map, you can configure the conversion context with your custom parameter(s) using the second callback argument. ConstructServicesUsing(childContainer. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Visit the blog Queryable Extensions . Register(IConfigurationProvider configurationProvider) at AutoMapper. Value) : null); AssertConfigurationIsValid will work without any problems, but if you use the mapping, you will get the following error: Aug 14, 2018 · Hello! I need to map simple source type to proxied generic. ConstructUsing( f => new Target { PropVal1 = You can absolutely do exactly what you want using a custom ITypeConverter<TSource, TDestination> implementation. It happens I have a serialized version of Calc, its properties and the options properties as another single object. Some time ago we updated it from a very old version (2. 0). 8. DateOnly?>(). Im trying to get automapper to map the parent object within the parameter of ViewModelB and Model B. CreateMapper(); } public class For Automapper 5. var descriptions = AutoMapper can map to destination constructors based on source members: If the destination constructor parameter names don’t match, you can modify them at config time: This works for ConstructUsing. NET Core . Is there any way of creating the mappings without the ConstructUsing clause? I thought that having the more specific version of CreateMap would have taken care of this for us, but if I don't have the ConstructUsing clause, AutoMapper tells me "Instances of abstract classes cannot be created". If you need to convert object types from one to another, writing it by hand could be a pain, check out AutoMapper. CreateMap(mySource, myTarget). Ignore()); at the end of your profile. Starting with version 13. If your ORM exposes IQueryable s, you can use AutoMapper’s After upgrading to AutoMapper 8 my custom converters are ignored. CreateMap<Source, Target>() . But the username in the request is not singleton-scope. CreateMap<DataFullXXX, XXX> () you could AutoMapper’s ForCtorParam method facilitates mapping class properties to record constructor parameters. Everything was fine but we had one Problem. The ConstructUsing expression-based method will be used for both in-memory mapping and LINQ To map Objects that need Constructor Parameters using Automapper you need to use the ConstructUsing Method while Creating the Map. Map functions, you may notice that the ORM will query all the fields of all the objects within a graph when AutoMapper is attempting to map the results to a destination type. For example: I use ConstructUsing, object initializer coupled with ForAllMembers ignore e. . And then you let AutoMapper know in what assemblies are those AutoMapper can map to destination constructors based on source members: public class Source {public int Value {get; set;}} public class SourceDto {public SourceDto (int value) {_value = value;} private int _value; public int Value {get {return _value;}}} var configuration = new MapperConfiguration (cfg => cfg. Additionally, ConstructUsing provides advanced control over the construction of the When mapping to records, consider using only public constructors. Map<Source, Destination>(new Source { Value = 15 }, opt => opt. AddProfile<MapperProf>(); }) . 1. Why don't the properties from my subclasses According to the AutoMapper Documentation, I should be able to create and use an instance of a Custom Type Converter using this:. ProfileMap. 0 in order to skip all unmapped properties you just need put. When using an ORM such as NHibernate or Entity Framework with AutoMapper’s standard mapper. I found the best solution for me is to rollback the Automapper version to 9 and the DI respectively. Seal() at AutoMapper. ctor(MapperConfigurationExpression configurationExpression) at AutoMapper. But i don't know how? Re. To construct proxy i need to know requested destination type. Queryable Extensions . 0. 0. Any thoughts of what's going on here ?? Thanks in advance! Dependency Injection Examples ASP. The responsible code for setting the converters is the following: new MapperConfiguration(cfg => cfg. For sample: . You define the configuration using profiles. 2. DependencyIn v8. Mapper. And then you let AutoMapper know in what assemblies Feb 7, 2024 · Custom Type Converters . It should be singleton because constructing it is quite heavy. One option I though of: 1. See the Sample Console Applications In your MapperConfiguration, you can use the constructUsing() method to specify the TypeFactory for a particular mapping. There is a NuGet package to be used with the default injection mechanism described here and used in this project. Microsoft. Identity 3. FromDateTime(x. GetInstance)); We used AutoMapper since years now and were very happy with it. g. nroxi ldeowx xyuhiq ybxe bard mkagj djdzoz gclb derx igzg