C# 后台获取前台交互判断

前台传来明细 ，判断是否修改，在把前台 的数据组成新的类保存

 public class tt
     {
         public string id { get; set; }
         public string e_id { get; set; }
         public string name { get; set; }
         public int age { get; set; }
         public bool sex { get; set; }

     }
     public class t
     {
         public string id { get; set; }
         public string name { get; set; }
         public List<tt> dd { get; set; }
     }
     class Program
     {

         static void Main(string[] args)
         {
             var q = new List<tt> { new tt { id = "",e_id="", name = "pg", age = , sex = true }, new tt { id = "",e_id="", name = "pp", age = , sex = true } };  //后台数据
             var w = new List<tt> { new tt { name = "pg", e_id = "", age = , sex = true }, new  ConsoleApplication2.tt { name = "pp", e_id = "", age = , sex = true }, new tt { name = "ppd", e_id = "", age = , sex = true } };  //前台数据 

             var e =   new t { id = "", name = "pg", dd = q  };     //父行

             var ischange1 = false;
             var ischange2 = false;
             foreach (var item in w)
             {
                 item.e_id = e.id;    //父ID
                 tt ex = q.Where(d => d.name == item.name).FirstOrDefault();
                 if (ex == null)
                 {
                     ischange2 = true;
                 }
                 else
                 {
                     if (ex.age != item.age || ex.sex != item.sex)
                     {
                         ischange2 = true;
                     }
                 }
             }

              if (q.Count != w.Count)
             {
                 ischange2 = true;
             }
             if (ischange1 == true || ischange2 == true)
             {
                 if (ischange2 == true)
                 {
                     e.dd = w;
                 }
             }
             Console.WriteLine(ischange2);

             Console.ReadKey(true);
         }

     }