Introduction of 4 deep copy methods in C #

1: Using Reflection to achieve

public static T deepcopy<t> (T obj) {  //If it is a string or value type, it returns the  if (obj is string | | obj. GetType (). Isvaluetype) return obj;   Object retval = Activator.CreateInstance (obj. GetType ());  fieldinfo[] fields = obj. GetType (). GetFields (BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | bindingflags.static);  foreach (FieldInfo field in fields)  {    try {field. SetValue (retval, deepcopy (field. GetValue (obj))); }    Catch {}  }  return (T) retval;}

2: Using XML serialization and deserialization implementations

Public T deepcopy<t> (t obj)    {      object retval;      using (MemoryStream ms = new MemoryStream ())      {        XmlSerializer xml = new XmlSerializer (typeof (T));        Xml. Serialize (MS, obj);        Ms. Seek (0, seekorigin.begin);        retval = XML. Deserialize (MS);        Ms. Close ();      }      Return (T) retval;    }

3: Using binary serialization and deserialization implementations

public static T deepcopy<t> (T obj) {  object retval;  using (MemoryStream ms = new MemoryStream ())  {    BinaryFormatter bf = new BinaryFormatter ();    Serialized into Stream    BF. Serialize (MS, obj);    Ms. Seek (0, seekorigin.begin);    Deserializes into object    retval = bf. Deserialize (MS);    Ms. Close ();  }  Return (T) retval;}

4: Implemented with Silverlight DataContractSerializer for use in Silverlight clients

public static T deepcopy<t> (t obj)    {      object retval;      using (MemoryStream ms = new MemoryStream ())      {        DataContractSerializer ser = new DataContractSerializer (typeof (T));        Ser. WriteObject (MS, obj);        Ms. Seek (0, seekorigin.begin);        retval = ser. ReadObject (MS);        Ms. Close ();      }      Return (T) retval;

Add: The first one has been implemented by recursive deep copy.