diff --git a/source/Ox.UI/js/List/Ox.List.js b/source/Ox.UI/js/List/Ox.List.js
index 84e0efd5..28488010 100644
--- a/source/Ox.UI/js/List/Ox.List.js
+++ b/source/Ox.UI/js/List/Ox.List.js
@@ -54,6 +54,7 @@ Ox.List = function(options, self) {
     self = self || {};
     var that = Ox.Container({}, self)
             .defaults({
+                _tree: false,
                 centered: false,
                 construct: null,
                 draggable: false,
@@ -83,7 +84,7 @@ Ox.List = function(options, self) {
         } : sort;
     });
 
-    if (Ox.isArray(self.options.items)) {
+    if (Ox.isArray(self.options.items) && !self.options._tree) {
         self.options.items = Ox.api(self.options.items, {
             cache: true,
             sort: self.options.sort,
@@ -121,7 +122,8 @@ Ox.List = function(options, self) {
         $items: [],
         $pages: [],
         format: {},
-        isAsync: true,
+        //isAsync: true,
+        isAsync: !self.options._tree,
         itemMargin: self.options.type == 'text' ? 0 : 8, // 2 x 4 px margin ... fixme: the 2x should be computed later
         keyboardEvents: {
             key_control_c: copyItems,
@@ -457,7 +459,6 @@ Ox.List = function(options, self) {
                 var height = getHeight(),
                     lastItemHeight = height % self.options.itemHeight || self.options.itemHeight,
                     visibleItems = Math.ceil(height / self.options.itemHeight);
-                //Ox.print('FFP!!!', height)
                 if (self.listLength < visibleItems) {
                     Ox.range(self.listLength, visibleItems).forEach(function(i) {
                         var $item = Ox.ListItem({
@@ -1463,9 +1464,9 @@ Ox.List = function(options, self) {
                 $item.insertAfter($items[i - 1]);
             }
         });
-        ///////self.options.items.splice.apply(self.options.items, Ox.merge([pos, 0], items));
+        self.options.items.splice.apply(self.options.items, Ox.merge([pos, 0], items));
         self.$items.splice.apply(self.$items, Ox.merge([pos, 0], $items));
-        ///////self.listLength = self.options.items.length;
+        self.listLength = self.options.items.length;
         //loadItems();
         updatePositions();
     }
@@ -1569,14 +1570,14 @@ Ox.List = function(options, self) {
                 self.selected.indexOf(i) > -1 && deselect(i);
                 self.$items[i].remove();
             });
-            ///////self.options.items.splice(pos, length);
+            self.options.items.splice(pos, length);
             self.$items.splice(pos, length);
             self.selected.forEach(function(v, i) {
                 if (v >= pos + length) {
                     self.selected[i] -= length;
                 }
             });
-            ///////self.listLength = self.options.items.length;
+            self.listLength = self.options.items.length;
             updatePositions();
         }
     }
diff --git a/source/Ox.UI/js/List/Ox.TextList.js b/source/Ox.UI/js/List/Ox.TextList.js
index 70423312..86f3498c 100644
--- a/source/Ox.UI/js/List/Ox.TextList.js
+++ b/source/Ox.UI/js/List/Ox.TextList.js
@@ -604,7 +604,6 @@ Ox.TextList = function(options, self) {
     }
 
     function getCell(id, key) {
-        Ox.print('List', 'getCell', id, key)
         var $item = getItem(id);
         key = key || ''; // fixme: what is this?
         return $($item.find('.OxCell.OxColumn' + Ox.toTitleCase(key))[0]);
diff --git a/source/Ox.UI/js/List/Ox.TreeList.js b/source/Ox.UI/js/List/Ox.TreeList.js
index f41cd3c8..4514c199 100644
--- a/source/Ox.UI/js/List/Ox.TreeList.js
+++ b/source/Ox.UI/js/List/Ox.TreeList.js
@@ -44,6 +44,7 @@ Ox.TreeList = function(options, self) {
     }
 
     that.$element = Ox.List({
+            _tree: true,
             construct: constructItem,
             itemHeight: 16,
             items: parseItems(),