class Program
{
static void Main(string[] args)
{
var parent1 = new Parent() {Id = 1};
parent1.Children = new List<Child>();
parent1.Children.Add(new Child() { Name = "One" });
parent1.Children.Add(new Child() { Name = "Two" });
var parent2 = new Parent() { Id = 2 };
parent2.Children = new List<Child>();
parent2.Children.Add(new Child() { Name = "One" });
parent2.Children.Add(new Child() { Name = "Two" });
var parent3 = new Parent() { Id = 3 };
parent3.Children = new List<Child>();
parent3.Children.Add(new Child() { Name = "One" });
parent3.Children.Add(new Child() { Name = "Two" });
var parentShallowCopy = parent1.ShallowCopy();
var parentDeepCopy = parent2.DeepCopy();
var parentDeepClone = parent3.DeepClone();
Console.WriteLine("ORIGINAL(1) : {0}", parent1);
Console.WriteLine("SHALLOW COPY: {0}", parentShallowCopy);
Console.WriteLine("ORIGINAL(2) : {0}", parent2);
Console.WriteLine("DEEP COPY : {0}", parentDeepCopy);
Console.WriteLine("ORIGINAL(3) : {0}", parent3);
Console.WriteLine("DEEP CLONE : {0}", parentDeepClone);
parentShallowCopy.Children[0].Name = "Zero";
parentDeepCopy.Children[0].Name = "Zero";
parentDeepClone.Children[0].Name = "Zero";
Console.WriteLine("");
Console.WriteLine("ORIGINAL(1) : {0}", parent1);
Console.WriteLine("SHALLOW COPY: {0}", parentShallowCopy);
Console.WriteLine("ORIGINAL(2) : {0}", parent2);
Console.WriteLine("DEEP COPY : {0}", parentDeepCopy);
Console.WriteLine("ORIGINAL(3) : {0}", parent3);
Console.WriteLine("DEEP CLONE : {0}", parentDeepClone);
Console.ReadLine();
}
}
[Serializable]
class Parent
{
public int Id { get; set; }
public List<Child> Children { get; set; }
public Parent ShallowCopy()
{
return (Parent)this.MemberwiseClone();
}
public Parent DeepCopy()
{
Parent other = (Parent)this.MemberwiseClone();
other.Children = new List<Child>();
this.Children.ForEach(x => other.Children.Add(x.DeepCopy()));
return other;
}
public override string ToString()
{
var sb = new StringBuilder();
sb.AppendFormat("[Id:{0},Children:[", Id);
Children.ForEach(x => sb.AppendFormat("{0},", x.ToString()));
sb.Remove(sb.Length - 1, 1);
sb.AppendFormat("]]");
return sb.ToString();
}
}
[Serializable]
class Child
{
public string Name { get; set; }
public override string ToString()
{
return string.Format("{0}", Name);
}
public Child ShallowCopy()
{
return (Child)this.MemberwiseClone();
}
public Child DeepCopy()
{
return (Child)this.MemberwiseClone();
}
}
//extends classes that are marked [Serializable]
public static class ExtensionMethods
{
public static T DeepClone<T>(this T a)
{
using (MemoryStream stream = new MemoryStream())
{
BinaryFormatter formatter = new BinaryFormatter();
formatter.Serialize(stream, a);
stream.Position = 0;
return (T)formatter.Deserialize(stream);
}
}
}
