AutoMap enum attribute

CSharp · Console

/Program.cs

using System;
using System.IO;
using AutoMapper;
using System.Collections.Generic;

namespace Example
{
	public class OrderLine
	{
	}
	
	public class OrderLineDTO
	{
	}
	
	public class DescriptionAttribute : Attribute
	{
		private readonly string _description;
		
		public DescriptionAttribute(string description)
		{
			_description = description;
		}
		
		public string Description
		{
			get
			{
				return _description;
			}
		}
	}
	
	public enum OrderStatus
	{
		[Description("Paid")]
		Paid,
	
		[Description("Processing")]
		InProcess,
	
		[Description("Delivered")]
		Sent
	}

	public static class ExtensionMethods
	{
		static public string GetDescription(this OrderStatus This)
		{
			var type = typeof(OrderStatus);
			var memInfo = type.GetMember(This.ToString());
			var attributes = memInfo[0].GetCustomAttributes(typeof(DescriptionAttribute), false);
			return ((DescriptionAttribute)attributes[0]).Description;
		}
	}

	public class Order {
		public int Id { get; set; }
		public List<OrderLine> OrderLines { get; set; }
		public OrderStatus Status { get; set; }
	}
	
	public class OrderDTO {
		public int Id { get; set; }
		public List<OrderLineDTO> OrderLines { get; set; }
		public string Status { get; set; }  
	}
	
	public class Program
	{
		static public void Main()
		{
			Mapper.Initialize
			(
				cfg => 
				{
					cfg.CreateMap<Order, OrderDTO>()
					.ForMember
					(
						dest => dest.Status,
						opt => opt.MapFrom
						(
							src => src.Status.GetDescription()
						)
					);
				}
			);
			
			var o = new Order();
			o.Status = OrderStatus.Sent;
			
			var dto = Mapper.Map<OrderDTO>(o);
			
			Console.WriteLine(dto.Status);
			
		}
	}
}