// @nuget: AutoMapper -Version 13.0.1

// @nuget: ExpressionTreeToString -Version 3.4.71

// @nuget: AgileObjects.ReadableExpressions -Version 4.1.3

​

using AutoMapper;

using AutoMapper.QueryableExtensions;

using AgileObjects.ReadableExpressions;

using ExpressionTreeToString;

using ZSpitz.Util;

using System;

using System.Linq;

​

//var query = (from x in new[] { 1, 2, 3, 4, 5 } select x).AsQueryable();

​

//query = query.Select(x => x * 5);

​

//Console.WriteLine(query.Expression.ToString("Factory methods", "C#"));

​

var configuration = new MapperConfiguration(cfg =>

{

    cfg.AddProfile(new AbProfile());

});

var mapper = configuration.CreateMapper();

​

var aQueryable = new[] { new A { StringArrProp = ["1", "2", "3"] } }.AsQueryable();

​

var bQueryable = aQueryable.ProjectTo<B>(mapper.ConfigurationProvider);

​

Console.WriteLine("ExpressionTreeToString:");

Console.WriteLine(bQueryable.Expression.ToString(BuiltinRenderer.FactoryMethods, Language.CSharp));

//Console.WriteLine(bQueryable.Expression.ToString("Factory methods", "C#"));

​

Console.WriteLine("AgileObjects.ReadableExpressions:");

Console.WriteLine(bQueryable.Expression.ToReadableString());

​

class A

{

    public string[] StringArrProp { get; set; }

}

​

​

class B

{

    public string StringProp { get; set; }

}

​

​

public class AbProfile : Profile

{

    public AbProfile()

    {

        CreateMap<A, B>().ForMember(a => a.StringProp, opt => opt.MapFrom(dto => string.Join(", ", dto.StringArrProp)));

    }

}