Xaml Namescope fixes

src/AddIns/DisplayBindings/WpfDesign/WpfDesign.Designer/Project/Xaml/XamlComponentService.cs

@@ -105,7 +105,7 @@ namespace ICSharpCode.WpfDesign.Designer.Xaml
 			}
 			
 			if (_context.RootItem != null && !string.IsNullOrEmpty(site.Name)) {
-				var nameScope = NameScopeHelper.GetNameScopeFromObject(_context.RootItem.Component);
+				var nameScope = NameScopeHelper.GetNameScopeFromObject(((XamlDesignItem)_context.RootItem).XamlObject);
 
 				if (nameScope != null) {
 					// The object will be a part of the RootItem namescope, remove local namescope if set

src/AddIns/DisplayBindings/WpfDesign/WpfDesign.Designer/Project/Xaml/XamlModelCollectionElementsCollection.cs

@@ -20,6 +20,7 @@ using System;
 using System.Diagnostics;
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
+using System.Windows;
 using ICSharpCode.WpfDesign.XamlDom;
 using ICSharpCode.WpfDesign.Designer.Services;
 using System.Collections.Specialized;
@@ -179,6 +180,8 @@ namespace ICSharpCode.WpfDesign.Designer.Xaml
 			
 			if (CollectionChanged != null)
 				CollectionChanged(this, new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Remove, item, index));
+
+			NameScopeHelper.NameChanged(item.XamlObject, item.Name, null);
 		}
 		
 		void InsertInternal(int index, XamlDesignItem item)
@@ -187,6 +190,8 @@ namespace ICSharpCode.WpfDesign.Designer.Xaml
 			
 			if (CollectionChanged != null)
 				CollectionChanged(this, new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Add, item, index));
+
+			NameScopeHelper.NameChanged(item.XamlObject, null, item.Name);
 		}
 		
 		sealed class InsertAction : ITransactionItem

src/AddIns/DisplayBindings/WpfDesign/WpfDesign.XamlDom/Project/NameScopeHelper.cs

@@ -34,11 +34,11 @@ namespace ICSharpCode.WpfDesign.XamlDom
 		/// <param name="namedObject">The object where the name was changed.</param>
 		/// <param name="oldName">The old name.</param>
 		/// <param name="newName">The new name.</param>
-		internal static void NameChanged(XamlObject namedObject, string oldName, string newName)
+		public static void NameChanged(XamlObject namedObject, string oldName, string newName)
 		{
 			var obj = namedObject;
 			while (obj != null) {
-				var nameScope = GetNameScopeFromObject(obj.Instance);
+				var nameScope = GetNameScopeFromObject(obj);
 				if (nameScope != null) {
 					if (oldName != null) {
 						try {
@@ -69,15 +69,27 @@ namespace ICSharpCode.WpfDesign.XamlDom
 		/// </summary>
 		/// <param name="obj">The object to get the XAML namescope for.</param>
 		/// <returns>A XAML namescope, as an <see cref="INameScope"/> instance.</returns>
-		public static INameScope GetNameScopeFromObject(object obj)
+		public static INameScope GetNameScopeFromObject(XamlObject obj)
 		{
-			var nameScope = obj as INameScope;
-			if (nameScope == null) {
-				var depObj = obj as DependencyObject;
-				if (depObj != null)
-					nameScope = NameScope.GetNameScope(depObj);
+			INameScope nameScope = null;
+
+			while (obj != null)
+			{
+				nameScope = obj.Instance as INameScope;
+				if (nameScope == null)
+				{
+					var xamlObj = obj.ParentObject != null ? obj.ParentObject : obj;
+					var depObj = xamlObj.Instance as DependencyObject;
+					if (depObj != null)
+						nameScope = NameScope.GetNameScope(depObj);
+
+					if (nameScope != null)
+						break;
+				}
+
+				obj = obj.ParentObject;
 			}
-			
+
 			return nameScope;
 		}
 		

src/AddIns/DisplayBindings/WpfDesign/WpfDesign.XamlDom/Project/XamlObjectServiceProvider.cs

@@ -195,7 +195,7 @@ namespace ICSharpCode.WpfDesign.XamlDom
 			var xamlObj = this.XamlObject;
 			while (xamlObj != null)
 			{
-				ns = NameScopeHelper.GetNameScopeFromObject(xamlObj.Instance);
+				ns = NameScopeHelper.GetNameScopeFromObject(xamlObj);
 
 				if (ns != null) {
 					var obj = ns.FindName(name);