diff --git a/ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/CollectionEditors/Implementation/CollectionEditorDialog.xaml b/ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/CollectionEditors/Implementation/CollectionEditorDialog.xaml
index 86cb7858..85f5712a 100644
--- a/ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/CollectionEditors/Implementation/CollectionEditorDialog.xaml
+++ b/ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/CollectionEditors/Implementation/CollectionEditorDialog.xaml
@@ -13,7 +13,8 @@
         
         <extToolkit:CollectionEditor x:Name="_propertyGrid"
                                      ItemsSourceType="{Binding ItemsSourceType, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=Window}}"
-                                     ItemsSource="{Binding ItemsSource, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=Window}}"/>
+                                     ItemsSource="{Binding ItemsSource, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=Window}}"
+                                     NewItemTypes="{Binding NewItemTypes, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=Window}}"/>
 
         <StackPanel Orientation="Horizontal" Grid.Row="1" HorizontalAlignment="Right" Margin="5" >
             <Button Width="75" Margin="2" Click="OkButton_Click" IsDefault="True">OK</Button>
diff --git a/ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/CollectionEditors/Implementation/CollectionEditorDialog.xaml.cs b/ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/CollectionEditors/Implementation/CollectionEditorDialog.xaml.cs
index 1053efc3..3b056024 100644
--- a/ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/CollectionEditors/Implementation/CollectionEditorDialog.xaml.cs
+++ b/ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/CollectionEditors/Implementation/CollectionEditorDialog.xaml.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Windows;
 using System.Collections;
+using System.Collections.Generic;
 
 namespace Microsoft.Windows.Controls
 {
@@ -25,6 +26,13 @@ namespace Microsoft.Windows.Controls
             set { SetValue(ItemsSourceTypeProperty, value); }
         }
 
+        public static readonly DependencyProperty NewItemTypesProperty = DependencyProperty.Register("NewItemTypes", typeof(IList), typeof(CollectionEditorDialog), new UIPropertyMetadata(null));
+        public IList<Type> NewItemTypes
+        {
+            get { return (IList<Type>)GetValue(NewItemTypesProperty); }
+            set { SetValue(NewItemTypesProperty, value); }
+        }
+
         #endregion //Properties
 
         #region Constructors