Sort episodes by column beneath their parents

Source/LibationAvalonia/ViewModels/RowComparer.cs

@@ -70,9 +70,9 @@ namespace LibationAvalonia.ViewModels
 					return InternalCompare(parentA, geB);
 			}
 
-			//both are children of the same series, always present in order of series index, ascending
+			//both are children of the same series
 			if (parentA == parentB)
-				return geA.SeriesIndex.CompareTo(geB.SeriesIndex) * (sortDirection is ListSortDirection.Ascending ? 1 : -1);
+				return InternalCompare(geA, geB);
 
 			//a and b are children of different series.
 			return InternalCompare(parentA, parentB);

Source/LibationWinForms/GridView/GridEntryBindingList.cs

@@ -201,8 +201,8 @@ namespace LibationWinForms.GridView
 			{
 				var pIndex = itemsList.IndexOf(parent);
 
-				//children should always be sorted by series index.
-				foreach (var c in children.Where(c => c.Parent == parent).OrderBy(c => c.SeriesIndex))
+				//children are sorted beneath their series parent
+				foreach (var c in children.Where(c => c.Parent == parent).OrderBy(c => c, Comparer))
 					itemsList.Insert(++pIndex, c);
 			}
 		}