How to deep copy a class without marking it as Serializable

Question

Given the following class:

class A
{
    public List ListB;

    // etc...
}

where B is another class that may inheri

Answer 1

Try using a memory stream to get a deep copy of your object:

 public static T MyDeepCopy(this T source)
            {
                try
                {

                    //Throw if passed object has nothing
                    if (source == null) { throw new Exception("Null Object cannot be cloned"); }

                    // Don't serialize a null object, simply return the default for that object
                    if (Object.ReferenceEquals(source, null))
                    {
                        return default(T);
                    }

                    //variable declaration
                    T copy;
                    var obj = new DataContractSerializer(typeof(T));
                    using (var memStream = new MemoryStream())
                    {
                        obj.WriteObject(memStream, source);
                        memStream.Seek(0, SeekOrigin.Begin);
                        copy = (T)obj.ReadObject(memStream);
                    }
                    return copy;
                }
                catch (Exception)
                {
                    throw;
                }
            }

Here is more.