How to Remove Duplicate Values from ArrayList in C#

How to Remove Duplicate Values from ArrayList in C# ??

Example:

using System.Collections;

using System.Linq;

Class RemoveDuplicateFromArray
{
    Static void Main()
    {
        ArrayList duplicate= new ArrayList();

duplicate.Add(5); 

duplicate.Add(13);

duplicate.Add(11); 

duplicate.Add(5);

duplicate.Add(11); 

duplicate.Add(10);

duplicate.Add(22);  

duplicate.Add(23);

//Removes all Duplicate Values in Array

ArrayList distinct= RemoveDuplicate(duplicate);


    }

public ArrayList RemoveDuplicate(ArrayList duplicate)

{

   	ArrayList distinctArr= new ArrayList();

duplicate.ToArray().Distinct().ToList().ForEach(d=> distinctArr.Add();

	return distinctArr;

}
}

See Demo

  Add  Remove  Clear Array

Array Value

Distinct Value