using System;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

        var existingManagers = new List<Person>();

        existingManagers.Add(new Person { Name = "Ben", Email = "ben@gmail.com", IsActive = true});

        existingManagers.Add(new Person { Name = "Jen", Email = "jen@gmail.com", IsActive = true});

        existingManagers.Add(new Person { Name = "Ken", Email = "ken@gmail.com", IsActive = true});

        existingManagers.Add(new Person { Name = "Sen", Email = "sen@gmail.com", IsActive = true});

        existingManagers.Add(new Person { Name = "Sam", Email = "sen@gmail.com", IsActive = true});

        var managerEmailsDTOs = new List<Person>();

        managerEmailsDTOs.Add(new Person { Name = "Shren", Email = "shren@gmail.com"});

​

        var entriesToUpdate = existingManagers.Where(x => managerEmailsDTOs.Any(m => x.Email == x.Email));

        foreach (var entry in entriesToUpdate)

        {

            var importedManagerDto = managerEmailsDTOs.FirstOrDefault(x => x.Email == entry.Email);

            if (importedManagerDto == null) continue;

            //_mapper.Map(importedManagerDto, entry);

            entry.Name = importedManagerDto.Name;

        }

        foreach(var entry in entriesToUpdate) {

            Console.WriteLine("{0}, {1}, {2}", entry.Name, entry.Email, entry.IsActive);

        }

         //var newManagerEmails = importedManagerEmails.Where(x => !existingManagers.Any(e => e.Email == x.Email)).Select(x => _mapper.Map<ManagerEmail>(x));

        //_managerEmailRepository.AddRange(newManagerEmails);

       // managerEmailsUploadResult.SuccessfulImports = newManagerEmails.Count;

    }

}

​

public class Person {

    public string Name {get; set;}

    public string Email {get; set;}

    public bool IsActive {get; set;}

​

    public Person() {

​

    }

}

​

public class Animal {

    public string Name {get; set;}

    public Animal() {

    }

}