True Copying Reference-Value Objects

I have stumbled upon the following problem:

Given an object (any reference-value class) O1, how can I copy it to another object O2.

O1 = O2; //will only copy the reference, but I want a new object being exactly identic to the old one.

Also, how can I do the same thing on an Array

int[] arr1, arr2;

arr1 = arr2;// also, doesn't work, only copies the reference

Hope I made myself clear enough.

Thanks in advanced.

crowsfoot

Hi

have a look at http://forums.microsoft.com/MSDN/ShowPost.aspx PostID=1119209&SiteID=1

Hope this helps, please close the thread if it does
RexH
Thank you for the answer, but I have another question.

How do I do a deep copy of ArrayList

the ArrayList.Clone() creates a shalow copy, and it doesn't create new objects for every object in the array. Is there any way I could create a deep copy of an ArrayList My guess is not, because the ArrayList might contain some objects which do not implement IClonable.
ytandeta

Some objects inherits from the ICloneable interface. You can use the obj.Clone() method to make it. Its also works fine for arrays.

Regards
Andy Burns

Hi,

You need to implement it yourself.

Meaning you need to override the base implementation and give your own "deep" copy.

Guy kolbis
True Copying Reference-Value Objects