View difference between Paste ID: 2EMYU4LB and ZAB4VUiY

 
-    public class Animal
+namespace ConsoleApplication1
 {
-        public T Promote<T>() where T : Animal
+    //[Serializable]
     public class Animal //: ICloneable
-            return this as T;
+
         public T Promote<T>() where T : new()
         {
             var clone = new T();
             var members = GetType().GetMembers(BindingFlags.GetProperty | BindingFlags.Public | BindingFlags.Instance);
-
+            foreach (var member in members.Where(m => m.MemberType == MemberTypes.Property))
                 clone
-    public class test
+                    .GetType()
                     .GetProperty(member.Name)
-        public void ttt()
+                    .SetValue(clone, GetType().GetProperty(member.Name).GetValue(this, null), null);
             return clone;
-            Animal animal = new Animal();
+
-            Dog dog = animal.Promote<Dog>();
+
 
-    }
+    //[Serializable]
     public class Dog : Animal
     {
     }
 
     public class Program
     {
         private static void Main(string[] args)
         {
             var animal = new Animal();
             var dog = animal.Promote<Dog>();
 
             Console.WriteLine(dog==null);
         }
     }
 }