passing around values to an AutoMapper Type Converter from outside

Question

I have a multilingual database, which returns values based on a key and an enum Language. When I convert a DB object to a model, I want the model to contain the tra

Answer 1

Just use the Map overload that takes a Action<IMappingOperationOptions>. You can add configuration elements to the Items property that are then passed to your ITypeConverter

public class CustomConverter : ITypeConverter<string, string>
{
    public string Convert(ResolutionContext context)
    {
        return "translated in " + context.Options.Items["language"];
    }
}

internal class Program
{
    private static void Main(string[] args)
    {
        AutoMapper.Mapper.CreateMap<string, string>().ConvertUsing<CustomConverter>();
        var result = AutoMapper.Mapper.Map<string, string>("value" , opt => opt.Items["language"] = "english");
        Console.Write(result); // prints "translated in english"
        Console.ReadLine();
    }
}