Add index and create

Web/Utility/CustomExtensions.cs

@@ -238,33 +238,47 @@ namespace MileageTraker.Web.Utility
 		}
 
 		public static Dictionary<string, List<string>> YearMonthList(IEnumerable<DateTime> dates)
+		{
+			var tuples = 
+			from d in dates
+			orderby d descending
+			select Tuple.Create(d.Year.ToString(), d.Month.ToString());
+
+			return GroupTuple(tuples);
+			//return
+			//	(from d in dates
+			//	 orderby d.Year descending
+			//	 group d by d.Year
+			//	 into yg
+			//	 select
+			//		 new
+			//			 {
+			//				 Year = yg.Key.ToString(),
+			//				 MonthList =
+			//		 (from o in yg
+			//		  orderby o.Month descending
+			//		  group o by o.Month
+			//		  into mg
+			//		  select mg.Key.ToString()).ToList()
+			//			 }).ToDictionary(arg => arg.Year, arg => arg.MonthList);
+		}
+
+		public static Dictionary<string, List<string>> GroupTuple(IEnumerable<Tuple<string,string>> tuples)
 		{
 			return
-				(from d in dates
-				 orderby d.Year descending
-				 group d by d.Year
+				(from t in tuples
+				 group t by t.Item1
 				 into yg
 				 select
 					 new
 						 {
-							 Year = yg.Key.ToString(),
-							 MonthList =
+							 Item1 = yg.Key,
+							 Item2List =
 					 (from o in yg
-					  orderby o.Month descending
-					  group o by o.Month
+					  group o by o.Item2
 					  into mg
-					  select mg.Key.ToString()).ToList()
-						 }).ToDictionary(arg => arg.Year, arg => arg.MonthList);
-		}
-
-		public static RouteValueDictionary ToRouteValueDictionary(this NameValueCollection collection)
-		{
-			var routeValueDictionary = new RouteValueDictionary();
-			foreach (var key in collection.AllKeys)
-			{
-				routeValueDictionary.Add(key, collection[key]);
-			}
-			return routeValueDictionary;
+					  select mg.Key).ToList()
+						 }).ToDictionary(arg => arg.Item1, arg => arg.Item2List);
 		}
 
 		//public static IEnumerable<SelectListItem> ToSelectList<T>(