using System;

using System.Linq;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        var usageData = new List<UsageData>()

        {

            new UsageData {UsageType = "FIND", DupTrans  = 190, UniqTrans = 55 },

            new UsageData {UsageType = "PARTS", DupTrans  = 107, UniqTrans = 51 }

        };

        var dup = usageData.GroupBy(p => "Duplicate Transactions", p => p.DupTrans).Select(g => new {

            name = "Duplicate Transactions",

            data = g.ToList()

        }).First();

        Console.WriteLine(dup.name);

        Console.WriteLine(string.Join(",", dup.data));

​

​

        var uniq  = usageData.GroupBy(p => "Unique Transactions", p => p.UniqTrans).Select(g => new {

            name = "Unique Transactions",

            data = g.ToList()

        }).First();

        Console.WriteLine(uniq.name);

        Console.WriteLine(string.Join(",", uniq.data));

​

    }

    public class UsageData

    {

        public string UsageType {get;set;}

        public int DupTrans {get;set;}

        public int UniqTrans {get;set;}

    }

}