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

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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 SourceLevel
{
get;
set;
}
}

Destination Class:
public class DestinationClass
{
public DestinationClassification input
{
get;
set;
}
}

Enum Property of Source Class:
public enum SourceClassification
{
Required = 1,
Optional = 2,
Selective = 3
}

Enum Property of Destination Class:
public enum DestinationClassification
{
Mandate= 1,
Optional = 2,
Selective = 3
}

What I have tried:

cfg.CreateMap<SourceClass,DestinationClass>()
.ForMember(s=>s.Input, d=>d.Input);

Posted 30-Jul-18 22:02pm

Member 13466003

Updated 31-Jul-18 4:12am

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Nathan Minier · Answer 1 · 2018-07-31T01:58:00

Just configure a map for the enums:

C#

Mapper.CreateMap<SourceClassification,DestinationClassification>().ConvertUsing(val =>
{
   switch(val)
   {
      case SourceClassification.Required:
         return DestinationClassification.Mandate;
      case SourceClassification.Optional:
         return DestinationClassification.Optional;
      case SourceClassification.Selective:
         return DestinationClassification.Selective;
      default:
         return <whatever the default should be>;
   }
});

This has the benefit of being a flexible solution, so if either enum is refactored you will need to make sure to address the change in the conversion function.

George Swan · Answer 2 · 2018-07-31T04:13:00

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.

C#

var config = new MapperConfiguration(cfg =>
{
    cfg.CreateMap<SourceClass, DestinationClass>().ForMember(dest => dest.Input, opts =>
      opts.MapFrom(src => src.SourceLevel));
});

IMapper mapper = config.CreateMapper();
var source = new SourceClass
{
    SourceLevel = SourceClassification.Required,
};
var destination = mapper.Map<SourceClass, DestinationClass>(source);

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

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