PropertyGrid BREAKING CHANGES - renamed CustomTypeEditors to EditorDefinitions. Added ability to add custom editors by declaring a DataTemplate. You can target a Type or a list of PropertyNames.

Example:

        <extToolkit:PropertyGrid>
            <extToolkit:PropertyGrid.EditorDefinitions>
                <extToolkit:EditorDefinition TargetType="{x:Type sys:DateTime}">
                    <extToolkit:EditorDefinition.EditorTemplate>
                        <DataTemplate>
                            <extToolkit:DateTimeUpDown Format="ShortDate" Value="{Binding Value}" />
                        </DataTemplate>
                    </extToolkit:EditorDefinition.EditorTemplate>
                </extToolkit:EditorDefinition>
            </extToolkit:PropertyGrid.EditorDefinitions>
        </extToolkit:PropertyGrid>

ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/PropertyGrid/Implementation/Editors/CustomTypeEditor.cs → ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/PropertyGrid/Implementation/EditorDefinition.cs

@@ -1,11 +1,12 @@
 using System.Collections.Generic;
 using System;
+using System.Windows;
 
-namespace Microsoft.Windows.Controls.PropertyGrid.Editors
+namespace Microsoft.Windows.Controls.PropertyGrid
 {
-    public class CustomTypeEditor : ICustomTypeEditor
+    public class EditorDefinition : IEditorDefinition
     {
-        public ITypeEditor Editor { get; set; }
+        public DataTemplate EditorTemplate { get; set; }
 
         private IList<string> _properties = new List<string>();
         public IList<string> Properties

ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/PropertyGrid/Implementation/CustomTypeEditorCollection.cs → ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/PropertyGrid/Implementation/EditorDefinitionCollection.cs

@@ -1,12 +1,11 @@
 using System;
 using System.Collections.ObjectModel;
-using Microsoft.Windows.Controls.PropertyGrid.Editors;
 
 namespace Microsoft.Windows.Controls.PropertyGrid
 {
-    public class CustomTypeEditorCollection : ObservableCollection<ICustomTypeEditor>
+    public class EditorDefinitionCollection : ObservableCollection<IEditorDefinition>
     {
-        public ICustomTypeEditor this[string propertyName]
+        public IEditorDefinition this[string propertyName]
         {
             get
             {
@@ -20,7 +19,7 @@ namespace Microsoft.Windows.Controls.PropertyGrid
             }
         }
 
-        public ICustomTypeEditor this[Type targetType]
+        public IEditorDefinition this[Type targetType]
         {
             get
             {

ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/PropertyGrid/Implementation/Editors/DecimalUpDownEditor.cs

@@ -4,6 +4,11 @@ namespace Microsoft.Windows.Controls.PropertyGrid.Editors
 {
     public class DecimalUpDownEditor : TypeEditor<DecimalUpDown>
     {
+        protected override void SetControlProperties()
+        {
+            Editor.BorderThickness = new System.Windows.Thickness(0);
+        }
+
         protected override void SetValueDependencyProperty()
         {
             ValueProperty = DecimalUpDown.ValueProperty;

ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/PropertyGrid/Implementation/Editors/DoubleUpDownEditor.cs

@@ -4,6 +4,11 @@ namespace Microsoft.Windows.Controls.PropertyGrid.Editors
 {
     public class DoubleUpDownEditor : TypeEditor<DoubleUpDown>
     {
+        protected override void SetControlProperties()
+        {
+            Editor.BorderThickness = new System.Windows.Thickness(0);
+        }
+
         protected override void SetValueDependencyProperty()
         {
             ValueProperty = DoubleUpDown.ValueProperty;

ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/PropertyGrid/Implementation/Editors/ICustomTypeEditor.cs

@@ -1,12 +0,0 @@
-using System;
-using System.Collections.Generic;
-
-namespace Microsoft.Windows.Controls.PropertyGrid.Editors
-{
-    public interface ICustomTypeEditor
-    {
-        ITypeEditor Editor { get; set; }
-        IList<string> Properties { get; set; }
-        Type TargetType { get; set; }
-    }
-}

ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/PropertyGrid/Implementation/Editors/IntegerUpDownEditor.cs

@@ -4,6 +4,10 @@ namespace Microsoft.Windows.Controls.PropertyGrid.Editors
 {
     public class IntegerUpDownEditor : TypeEditor<IntegerUpDown>
     {
+        protected override void SetControlProperties()
+        {
+            Editor.BorderThickness = new System.Windows.Thickness(0);
+        }
         protected override void SetValueDependencyProperty()
         {
             ValueProperty = IntegerUpDown.ValueProperty;

ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/PropertyGrid/Implementation/IEditorDefinition.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Windows;
+
+namespace Microsoft.Windows.Controls.PropertyGrid
+{
+    public interface IEditorDefinition
+    {
+        DataTemplate EditorTemplate { get; set; }
+        IList<string> Properties { get; set; }
+        Type TargetType { get; set; }
+    }
+}

ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/PropertyGrid/Implementation/PropertyGrid.cs

@@ -35,17 +35,6 @@ namespace Microsoft.Windows.Controls.PropertyGrid
 
         #endregion //AdvancedOptionsMenu
 
-        #region CustomTypeEditors
-
-        public static readonly DependencyProperty CustomTypeEditorsProperty = DependencyProperty.Register("CustomTypeEditors", typeof(CustomTypeEditorCollection), typeof(PropertyGrid), new UIPropertyMetadata(new CustomTypeEditorCollection()));
-        public CustomTypeEditorCollection CustomTypeEditors
-        {
-            get { return (CustomTypeEditorCollection)GetValue(CustomTypeEditorsProperty); }
-            set { SetValue(CustomTypeEditorsProperty, value); }
-        }
-
-        #endregion //CustomTypeEditors
-
         #region DisplaySummary
 
         public static readonly DependencyProperty DisplaySummaryProperty = DependencyProperty.Register("DisplaySummary", typeof(bool), typeof(PropertyGrid), new UIPropertyMetadata(true));
@@ -57,6 +46,17 @@ namespace Microsoft.Windows.Controls.PropertyGrid
 
         #endregion //DisplaySummary
 
+        #region EditorDefinitions
+
+        public static readonly DependencyProperty EditorDefinitionsProperty = DependencyProperty.Register("EditorDefinitions", typeof(EditorDefinitionCollection), typeof(PropertyGrid), new UIPropertyMetadata(new EditorDefinitionCollection()));
+        public EditorDefinitionCollection EditorDefinitions
+        {
+            get { return (EditorDefinitionCollection)GetValue(EditorDefinitionsProperty); }
+            set { SetValue(EditorDefinitionsProperty, value); }
+        }
+
+        #endregion //EditorDefinitions
+
         #region Filter
 
         public static readonly DependencyProperty FilterProperty = DependencyProperty.Register("Filter", typeof(string), typeof(PropertyGrid), new UIPropertyMetadata(null, OnFilterChanged));
@@ -117,10 +117,10 @@ namespace Microsoft.Windows.Controls.PropertyGrid
 
         #region Properties
 
-        public static readonly DependencyProperty PropertiesProperty = DependencyProperty.Register("Properties", typeof(PropertyCollection), typeof(PropertyGrid), new UIPropertyMetadata(null));
+        public static readonly DependencyProperty PropertiesProperty = DependencyProperty.Register("Properties", typeof(PropertyItemCollection), typeof(PropertyGrid), new UIPropertyMetadata(null));
-        public PropertyCollection Properties
+        public PropertyItemCollection Properties
         {
-            get { return (PropertyCollection)GetValue(PropertiesProperty); }
+            get { return (PropertyItemCollection)GetValue(PropertiesProperty); }
             private set { SetValue(PropertiesProperty, value); }
         }
 
@@ -406,77 +406,14 @@ namespace Microsoft.Windows.Controls.PropertyGrid
             };
             propertyItem.SetBinding(PropertyItem.ValueProperty, binding);
 
-            ITypeEditor editor = GetTypeEditor(propertyItem);
+            propertyItem.Editor = GetTypeEditor(propertyItem);            
-            propertyItem.Editor = editor.ResolveEditor(propertyItem);
 
             return propertyItem;
         }
 
-        private static PropertyCollection GetCategorizedProperties(List<PropertyItem> propertyItems)
+        private FrameworkElement GetTypeEditor(PropertyItem propertyItem)
-        {
-            PropertyCollection propertyCollection = new PropertyCollection(propertyItems);
-            propertyCollection.GroupBy("Category");
-            propertyCollection.SortBy("Category", ListSortDirection.Ascending);
-            propertyCollection.SortBy("Name", ListSortDirection.Ascending);
-            return propertyCollection;
-        }
-
-        private static PropertyCollection GetAlphabetizedProperties(List<PropertyItem> propertyItems)
-        {
-            PropertyCollection propertyCollection = new PropertyCollection(propertyItems);
-            propertyCollection.SortBy("Name", ListSortDirection.Ascending);
-            return propertyCollection;
-        }
-
-        private void SetSelectedObjectNameBinding(object selectedObject)
-        {
-            if (selectedObject is FrameworkElement)
-            {
-                var binding = new Binding("Name");
-                binding.Source = selectedObject;
-                binding.Mode = BindingMode.OneWay;
-                BindingOperations.SetBinding(this, PropertyGrid.SelectedObjectNameProperty, binding);
-            }
-        }
-
-        private void SetDragThumbMargin(bool isCategorized)
-        {
-            if (_dragThumb == null)
-                return;
-
-            if (isCategorized)
-                _dragThumb.Margin = new Thickness(6, 0, 0, 0);
-            else
-                _dragThumb.Margin = new Thickness(-1, 0, 0, 0);
-        }
-
-        private void ResetPropertyGrid()
-        {
-            SelectedObjectName = String.Empty;
-            SelectedObjectType = null;
-            _propertyItemsCache = null;
-            Properties = null;
-        }
-
-        /// <summary>
-        /// Updates all property values in the PropertyGrid with the data from the SelectedObject
-        /// </summary>
-        public void Update()
         {
-            foreach (var item in Properties)
+            FrameworkElement editor = GetCustomEditor(propertyItem, EditorDefinitions);
-            {
-                BindingOperations.GetBindingExpressionBase(item, PropertyItem.ValueProperty).UpdateTarget();
-            }
-        }
-
-        #endregion //Methods
-
-
-        private ITypeEditor GetTypeEditor(PropertyItem propertyItem)
-        {
-            ITypeEditor editor = null;
-
-            editor = CreateCustomEditor(propertyItem, CustomTypeEditors);
 
             if (editor == null)
                 editor = CreateDefaultEditor(propertyItem);
@@ -484,15 +421,15 @@ namespace Microsoft.Windows.Controls.PropertyGrid
             return editor;
         }
 
-        private ITypeEditor CreateCustomEditor(PropertyItem propertyItem, CustomTypeEditorCollection customTypeEditors)
+        private FrameworkElement GetCustomEditor(PropertyItem propertyItem, EditorDefinitionCollection customTypeEditors)
         {
-            ITypeEditor editor = null;
+            FrameworkElement editor = null;
 
             //check for custom editor
             if (customTypeEditors.Count > 0)
             {
                 //first check if the custom editor is type based
-                ICustomTypeEditor customEditor = customTypeEditors[propertyItem.PropertyType];
+                IEditorDefinition customEditor = customTypeEditors[propertyItem.PropertyType];
                 if (customEditor == null)
                 {
                     //must be property based
@@ -500,13 +437,16 @@ namespace Microsoft.Windows.Controls.PropertyGrid
                 }
 
                 if (customEditor != null)
-                    editor = customEditor.Editor;
+                {
+                    if (customEditor.EditorTemplate != null)
+                        editor = customEditor.EditorTemplate.LoadContent() as FrameworkElement;
+                }
             }
 
             return editor;
         }
 
-        private ITypeEditor CreateDefaultEditor(PropertyItem propertyItem)
+        private FrameworkElement CreateDefaultEditor(PropertyItem propertyItem)
         {
             ITypeEditor editor = null;
 
@@ -544,7 +484,66 @@ namespace Microsoft.Windows.Controls.PropertyGrid
             else
                 editor = new TextBoxEditor();
 
-            return editor;
+            return editor.ResolveEditor(propertyItem);
+        }
+
+        private static PropertyItemCollection GetCategorizedProperties(List<PropertyItem> propertyItems)
+        {
+            PropertyItemCollection propertyCollection = new PropertyItemCollection(propertyItems);
+            propertyCollection.GroupBy("Category");
+            propertyCollection.SortBy("Category", ListSortDirection.Ascending);
+            propertyCollection.SortBy("Name", ListSortDirection.Ascending);
+            return propertyCollection;
+        }
+
+        private static PropertyItemCollection GetAlphabetizedProperties(List<PropertyItem> propertyItems)
+        {
+            PropertyItemCollection propertyCollection = new PropertyItemCollection(propertyItems);
+            propertyCollection.SortBy("Name", ListSortDirection.Ascending);
+            return propertyCollection;
+        }
+
+        private void SetSelectedObjectNameBinding(object selectedObject)
+        {
+            if (selectedObject is FrameworkElement)
+            {
+                var binding = new Binding("Name");
+                binding.Source = selectedObject;
+                binding.Mode = BindingMode.OneWay;
+                BindingOperations.SetBinding(this, PropertyGrid.SelectedObjectNameProperty, binding);
+            }
         }
+
+        private void SetDragThumbMargin(bool isCategorized)
+        {
+            if (_dragThumb == null)
+                return;
+
+            if (isCategorized)
+                _dragThumb.Margin = new Thickness(6, 0, 0, 0);
+            else
+                _dragThumb.Margin = new Thickness(-1, 0, 0, 0);
+        }
+
+        private void ResetPropertyGrid()
+        {
+            SelectedObjectName = String.Empty;
+            SelectedObjectType = null;
+            _propertyItemsCache = null;
+            Properties = null;
+        }
+
+        /// <summary>
+        /// Updates all property values in the PropertyGrid with the data from the SelectedObject
+        /// </summary>
+        public void Update()
+        {
+            foreach (var item in Properties)
+            {
+                BindingOperations.GetBindingExpressionBase(item, PropertyItem.ValueProperty).UpdateTarget();
+            }
+        }
+
+        #endregion //Methods
     }
 }

ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/PropertyGrid/Implementation/PropertyItem.cs

@@ -47,13 +47,29 @@ namespace Microsoft.Windows.Controls.PropertyGrid
 
         #region Editor
 
-        public static readonly DependencyProperty EditorProperty = DependencyProperty.Register("Editor", typeof(FrameworkElement), typeof(PropertyItem), new UIPropertyMetadata(null));
+        public static readonly DependencyProperty EditorProperty = DependencyProperty.Register("Editor", typeof(FrameworkElement), typeof(PropertyItem), new UIPropertyMetadata(null, OnEditorChanged));
         public FrameworkElement Editor
         {
             get { return (FrameworkElement)GetValue(EditorProperty); }
             set { SetValue(EditorProperty, value); }
         }
 
+        private static void OnEditorChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
+        {
+            PropertyItem propertyItem = o as PropertyItem;
+            if (propertyItem != null)
+                propertyItem.OnEditorChanged((FrameworkElement)e.OldValue, (FrameworkElement)e.NewValue);
+        }
+
+        protected virtual void OnEditorChanged(FrameworkElement oldValue, FrameworkElement newValue)
+        {
+            if (oldValue != null)
+                oldValue.DataContext = null;
+
+            if (newValue != null)
+                newValue.DataContext = this;
+        }
+
         #endregion //Editor
 
         private object _instance;

ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/PropertyGrid/Implementation/PropertyCollection.cs → ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/PropertyGrid/Implementation/PropertyItemCollection.cs

@@ -6,19 +6,19 @@ using System.Windows.Data;
 
 namespace Microsoft.Windows.Controls.PropertyGrid
 {
-    public class PropertyCollection : ObservableCollection<PropertyItem>
+    public class PropertyItemCollection : ObservableCollection<PropertyItem>
     {
-        public PropertyCollection()
+        public PropertyItemCollection()
         {
             
         }
 
-        public PropertyCollection(List<PropertyItem> list)
+        public PropertyItemCollection(List<PropertyItem> list)
             : base(list)
         {
             
         }
-        public PropertyCollection(IEnumerable<PropertyItem> collection)
+        public PropertyItemCollection(IEnumerable<PropertyItem> collection)
             : base(collection)
         {
                         

ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/WPFToolkit.Extended.csproj

@@ -249,14 +249,14 @@
     </Compile>
     <Compile Include="PropertyGrid\Implementation\Editors\ColorEditor.cs" />
     <Compile Include="PropertyGrid\Implementation\Editors\ComboBoxEditor.cs" />
-    <Compile Include="PropertyGrid\Implementation\Editors\CustomTypeEditor.cs" />
+    <Compile Include="PropertyGrid\Implementation\EditorDefinition.cs" />
-    <Compile Include="PropertyGrid\Implementation\CustomTypeEditorCollection.cs" />
+    <Compile Include="PropertyGrid\Implementation\EditorDefinitionCollection.cs" />
     <Compile Include="PropertyGrid\Implementation\Editors\DateTimeUpDownEditor.cs" />
     <Compile Include="PropertyGrid\Implementation\Editors\DecimalUpDownEditor.cs" />
     <Compile Include="PropertyGrid\Implementation\Editors\DoubleUpDownEditor.cs" />
     <Compile Include="PropertyGrid\Implementation\Editors\EnumComboBoxEditor.cs" />
     <Compile Include="PropertyGrid\Implementation\Editors\FontComboBoxEditor.cs" />
-    <Compile Include="PropertyGrid\Implementation\Editors\ICustomTypeEditor.cs" />
+    <Compile Include="PropertyGrid\Implementation\IEditorDefinition.cs" />
     <Compile Include="PropertyGrid\Implementation\Editors\IntegerUpDownEditor.cs" />
     <Compile Include="PropertyGrid\Implementation\Editors\ITypeEditor.cs" />
     <Compile Include="PropertyGrid\Implementation\Editors\PrimitiveTypeCollectionEditor.cs" />
@@ -264,7 +264,7 @@
     <Compile Include="PropertyGrid\Implementation\Editors\TextBoxEditor.cs" />
     <Compile Include="PropertyGrid\Implementation\Editors\TypeEditor.cs" />
     <Compile Include="PropertyGrid\Implementation\PropertyGrid.cs" />
-    <Compile Include="PropertyGrid\Implementation\PropertyCollection.cs" />
+    <Compile Include="PropertyGrid\Implementation\PropertyItemCollection.cs" />
     <Compile Include="PropertyGrid\Implementation\PropertyItem.cs" />
     <Compile Include="PropertyGrid\Implementation\Commands\PropertyItemCommands.cs" />
     <Compile Include="RichTextBoxFormatBar\IRichTextBoxFormatBar.cs" />