How do i convert a int to an enum and a string using automapper and int from DB

Question

Could someone please explain how I can use Automapper to map from DB int value to a string, using Enums as the collection.

I have the following

Enum

public enum Status { Open, Closed }

EF 4.1 Domain Model

public class MyEntity
{
    ...
    public int StatusId { get; set; }
    public virtual Status Status { get; set; }    
}

Dto being used on website

public class MyEntityDto
{
    public string Status { get; set; }
}

Current Automapper mappings

Mapper.CreateMap<int, Status>().ConvertUsing<EnumConverter<Status>>();
Mapper.CreateMap<Enum, string>().ConvertUsing(src => src.ToString());

Mapper.CreateMap<MyEntity, MyEntityDto>()
                .ForMember(d => d.Status, o => o.MapFrom(y => y.StatusId))

The EnumConverter in first line converts the int to a status fine without problem, but how do i convert the int or Status to the string in the DTO? Im lost any help would be appreciated.

I realise there are 2 conversions required here, the id to the enum when the data is pulled from the database and enum needs populating and then the enum to string needs doing

Cheers

score 62 · Accepted Answer · edited May 07 '15 at 16:15

62

Mapper.CreateMap<MyEntity, MyEntityDto>()
      .ForMember(destination => destination.Status, 
                 opt => opt.MapFrom(source => Enum.GetName(typeof(Status), source.StatusId)));

Also you don't need mapping from int to Status enum.

edited May 07 '15 at 16:15

theB3RV

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answered Nov 30 '12 at 08:11

Sergey Berezovskiy

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Awesome Thanks for your help, so simple in the end :) – Mark Nov 30 '12 at 08:21
Also may this thread be usefull so : https://stackoverflow.com/questions/9721466/automapper-cannot-convert-enum-to-nullable-int – Javad Norouzi Jul 07 '20 at 07:39

How do i convert a int to an enum and a string using automapper and int from DB

1 Answers1