Index: src/DeltaShell/DeltaShell.Gui/Forms/PropertyGridView/PropertyGridView.cs
===================================================================
diff -u -rb96820752850219c096ba6efbf6e32fcbb4df9a6 -r3c14a77ea8f6632d7c6e29bebc964e15b7db6317
--- src/DeltaShell/DeltaShell.Gui/Forms/PropertyGridView/PropertyGridView.cs	(.../PropertyGridView.cs)	(revision b96820752850219c096ba6efbf6e32fcbb4df9a6)
+++ src/DeltaShell/DeltaShell.Gui/Forms/PropertyGridView/PropertyGridView.cs	(.../PropertyGridView.cs)	(revision 3c14a77ea8f6632d7c6e29bebc964e15b7db6317)
@@ -20,13 +20,7 @@
         /// </summary>
         private delegate void ArgumentlessDelegate();
 
-        /// <summary>
-        /// todo: This is still an unwanted dependency. PropertyGrid uses gui to subscribe to the SelectionChanged
-        /// delegate and in responce queries the gui.Selection
-        /// nicer? : custom public delegate in IPropertyGrid with selection as parameter
-        /// </summary>
         private readonly IGui gui;
-
         private IObservable observable;
 
         public PropertyGridView(IGui gui)
@@ -56,7 +50,7 @@
 
         protected override void OnPropertySortChanged(EventArgs e)
         {
-            // Needed for maintaining property order
+            // Needed for maintaining property order (no support for both categorized and alphabethical sorting)
             if (PropertySort == PropertySort.CategorizedAlphabetical)
             {
                 PropertySort = PropertySort.Categorized;
@@ -211,6 +205,7 @@
             {
                 items.Add(parent);
             }
+
             if (parent.Expanded)
             {
                 foreach (GridItem child in parent.GridItems)