Using AutoMapper to map a string to an enum

Question

I have the following classes domain and Dto classes:

public class Profile
{
   public string Name { get; set; }
   public string SchoolGrade { get; set; } 
}

pu         


        

Answer 1

Since you're mapping from the display name and not the enum name you'll need to build a custom mapping function to scan the attributes to find the enum with that display name. You can use ResolveUsing instead of MapFrom to use a custom mapping function:

Mapper.CreateMap()
      .ForMember(d => d.SchoolGrade, 
                op => op.ResolveUsing(o=> MapGrade(o.SchoolGrade)));

public static SchoolGradeDTO MapGrade(string grade)
{
    //TODO: function to map a string to a SchoolGradeDTO
}

You could cache the names in a static dictionary so you don't use reflection every time.

A few methods of doing that can be found here.