List array duplicates with count

Question

I have an array which contains the following results

red 
red
red
blue
blue
Green
White
Grey

and I want to get duplicate count of every val

Answer 1

Add them to a Dictionary:

Dictionary counts = new Dictionary();
foreach(string s in list) 
{
   int prevCount;
   if (!counts.TryGet(s, out prevCount))
   {
      prevCount.Add(s, 1);
   }
   else
   {   
       counts[s] = prevCount++;
   }
}

Then counts contains the strings as keys, and their occurence as values.