比较Same类的对象并将值存储在另一个类的List中

Question

我想比较同一个类的两个不同对象，并将该值存储在另一个类的列表中。

它适用于基本数据类型，但是当类包含列表的属性或另一个类的属性时，我遇到了问题。

    class Program
    {
      static void Main()
      {
        SomeCustomClass a = new SomeCustomClass();
        SomeCustomClass b = new SomeCustomClass();
        a.CwNumber = "A";
        a.MaterialId = 1;
        a.MaterialName = "Material1";
        a.ListMyClass.Add( new MyClass1 { id = 11,Name="Name1" });
        a.ListMyClass.Add(new MyClass1 { id = 12, Name = "Name2" });

        b.CwNumber = "A";
        b.MaterialId = 2;
        b.MaterialName = "Material2";
        b.ListMyClass.Add(new MyClass1 { id = 21, Name = "Name3" });
        b.ListMyClass.Add(new MyClass1 { id = 22, Name = "Name4" });

        List<Variance> rt = a.GetDiffValue(b);       
      }

     public List<Variance> GetDiffValue<T>(this T val1, T val2)
     {
       List<Variance> variances = new List<Variance>();
       Variance v = new Variance();
       PropertyInfo[] pi = val1.GetType().GetProperties();
       foreach (PropertyInfo p in pi)
        {
            Variance v1 = new Variance();
            if (p.PropertyType.IsGenericType == true)
            {
                v1.Prop = p.Name;
                v1.valA = p.GetValue(val1, null);
                v1.valB = p.GetValue(val2, null);
            }
            else
            {
                v1.Prop = p.Name;
                v1.valA = p.GetValue(val1,null);
                v1.valB = p.GetValue(val2,null);
            }
            if (!v1.valA.Equals(v1.valB))
            {
                variances.Add(v);
            }
        }
        return variances;
      }
    }

    public class SomeCustomClass
    {
        public int MaterialId { get; set; }
        public string CwNumber { get; set; }  
        public List<MyClass1> ListMyClass { get; set; }
        public UsesModel Uses { get; set; } 

        public SomeCustomClass()
        {
            ListMyClass = new List<MyClass1>();
        }
     }
     public class MyClass1
     {
        public int id;
        string Name;
     }      

    public class Variance
    {
      public string propertyName { get; set; }
      public object OldValue { get; set; }
      public object NewValue { get; set; }
    }