How to Configure AutoMapper Once Per AppDomain

Question

My current project with assemblies for the domain model, MVC web application, and unit tests. How can I set up the AutoMapper configuration so that all assemblies reference

Answer 1

I tried the code above, but could not get it to work. I modified it a little bit as follows below. I think all that's left to do is to call it via a Bootstrapper from Global.asax. Hope this helps.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;

using AutoMapper;

namespace Automapping
{
    public class AutoMappingTypePairing
    {
        public Type SourceType { get; set; }
        public Type DestinationType { get; set; }
    }

    public class AutoMappingAttribute : Attribute 
    {
        public Type SourceType { get; private set; }

        public AutoMappingAttribute(Type sourceType)
        {
            if (sourceType == null) throw new ArgumentNullException("sourceType");
            SourceType = sourceType; 
        }
    }

    public static class AutoMappingEngine
    {
        public static void CreateMappings(Assembly a)
        {
            IList autoMappingTypePairingList = new List();

            foreach (Type t in a.GetTypes())
            {
                var amba = t.GetCustomAttributes(typeof(AutoMappingAttribute), true).OfType().FirstOrDefault();

                if (amba != null)
                {
                    autoMappingTypePairingList.Add(new AutoMappingTypePairing{ SourceType = amba.SourceType, DestinationType = t});
                }
            } 

            foreach (AutoMappingTypePairing mappingPair in autoMappingTypePairingList) 
            {
                Mapper.CreateMap(mappingPair.SourceType, mappingPair.DestinationType);
            }
        }
    }
}

And I use it like this to associate a source with a destination pairing:

[AutoMapping(typeof(Cms_Schema))]
public class Schema : ISchema
{
    public Int32 SchemaId { get; set; }
    public String SchemaName { get; set; }
    public Guid ApplicationId { get; set; }
}

Then to Create the mappings automagically, I do this:

        Assembly assembly = Assembly.GetAssembly(typeof([ENTER NAME OF A TYPE FROM YOUR ASSEMBLY HERE]));

        AutoMappingEngine.CreateMappings(assembly);