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 value of array, for example:

red    Count=3
blue   Count=2
Green  Count=1
White  Count=1
Grey   Count=1

Answer 1

LINQ makes this easy:

Dictionary<string, int> counts = array.GroupBy(x => x)
                                      .ToDictionary(g => g.Key,
                                                    g => g.Count());

Answer 2

Add them to a Dictionary:

Dictionary<string, int> counts = new Dictionary<string, int>();
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.