Is there a way to deep copy non serializable object?

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Deep cloning objects 39 answers

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Without more information it's hard to say exactly what's wrong, but ArrayList itself is serializable. However, if you are using a custom object you need to mark it as serializable for serialization to work. See: Serialize ArrayList of Objects

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Use a memory stream and binary formatter Something like

`public T Clone<T> (T obj)
.   {
.       using(var ms = new MemoryStream())
.       {
.          var formatter = new BinaryFormatter();
        formatter.Serialize(stream, obj);
        stream.Position =0;
        return (T)formatter.Deserialize(stream);
     }
.    }’

Hope that helps

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