public static void Main()
var listOfHStringsToSplitFor = new System.Collections.Specialized.OrderedDictionary();
listOfHStringsToSplitFor.Add("a","b");
listOfHStringsToSplitFor.Add("b","b");
listOfHStringsToSplitFor.Add("c","b");
listOfHStringsToSplitFor.Add("d","b");
listOfHStringsToSplitFor.Add("e","b");
Console.WriteLine(listOfHStringsToSplitFor.Keys.OfType<ulong>());