using System;

using AutoMapper;

​

public class DataModel

{

    public DataModel(){}

    public double  DNumber { get; set; }

}

​

​

​

public class Model

{

  public Model(){}

    public double  DNumber { get; set; }

}

public class Program

{

    public static void Main()

    {

        Mapper.Initialize(cfg => {

    cfg.CreateMap<DataModel, Model>()

        .ForMember(x => x.DNumber, opt =>  opt.MapFrom(src => Math.Round(src.DNumber, 2)));

        });

        var dt  =  new DataModel(){ DNumber=7.76751242432121  };

        var model  =  Mapper.Map<Model>(dt);

        Console.WriteLine(model.DNumber);

    }

}