Support to hide Controls from the OutlineView.

src/AddIns/DisplayBindings/WpfDesign/WpfDesign.Designer/Project/OutlineView/Outline.xaml

@@ -6,10 +6,40 @@
 	
 	<UserControl.Resources>
 		
+		<Style TargetType="ToggleButton" x:Key="eyeStyle">
+			<Setter Property="Template">
+				<Setter.Value>
+					<ControlTemplate TargetType="ToggleButton">
+						<Grid Background="Transparent" IsHitTestVisible="True">
+							<VisualStateManager.VisualStateGroups>
+								<VisualStateGroup x:Name="CheckStates">
+									<VisualState x:Name="Checked">
+										<Storyboard>
+											<ObjectAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="eye" Storyboard.TargetProperty="(UIElement.Visibility)">
+												<DiscreteObjectKeyFrame KeyTime="00:00:00" Value="{x:Static Visibility.Visible}"/>
+											</ObjectAnimationUsingKeyFrames>
+											<ObjectAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="circle" Storyboard.TargetProperty="(UIElement.Visibility)">
+												<DiscreteObjectKeyFrame KeyTime="00:00:00" Value="{x:Static Visibility.Collapsed}"/>
+											</ObjectAnimationUsingKeyFrames>
+										</Storyboard>
+									</VisualState>
+									<VisualState x:Name="Unchecked"/>
+								</VisualStateGroup>
+							</VisualStateManager.VisualStateGroups>
+							<Image x:Name="eye" Stretch="Uniform" Visibility="Hidden" Source="pack://application:,,,/ICSharpCode.WpfDesign.Designer;component/Images/eye_watch.png" />
+							<Ellipse Width="6" Height="6" Stroke="Black" StrokeThickness="1" x:Name="circle" />
+						</Grid>
+					</ControlTemplate>
+				</Setter.Value>
+			</Setter>
+		</Style>
+		
 		<HierarchicalDataTemplate DataType="{x:Type Default:OutlineNode}"
 		                          ItemsSource="{Binding Children}">
-			<Default:IconItem Icon="../Images/Tag.png"
-			                  Text="{Binding Name}" />
+			<DockPanel>
+				<ToggleButton Style="{StaticResource eyeStyle}" DockPanel.Dock="Right" Width="20" Margin="0,0,5,0" IsChecked="{Binding IsDesignTimeVisible}" />
+				<Default:IconItem Icon="../Images/Tag.png" Text="{Binding Name}" />
+			</DockPanel>
 		</HierarchicalDataTemplate>
 	
 	</UserControl.Resources>

src/AddIns/DisplayBindings/WpfDesign/WpfDesign.Designer/Project/OutlineView/OutlineNode.cs

@@ -11,6 +11,9 @@ using System.Collections.ObjectModel;
 using System.Collections;
 using ICSharpCode.WpfDesign.Designer;
 using ICSharpCode.WpfDesign.XamlDom;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Input;
 
 namespace ICSharpCode.WpfDesign.Designer.OutlineView
 {
@@ -41,6 +44,12 @@ namespace ICSharpCode.WpfDesign.Designer.OutlineView
 			DesignItem = designItem;
 			UpdateChildren();
 
+			var hidden = designItem.Properties.GetAttachedProperty(DesignTimeProperties.IsHiddenProperty).ValueOnInstance;
+			if (hidden != null && (bool) hidden == true) {
+				this._isDesignTimeVisible = false;
+				((FrameworkElement) this.DesignItem.Component).Visibility = Visibility.Hidden;
+			}
+
 			//TODO
 			DesignItem.NameChanged += new EventHandler(DesignItem_NameChanged);
 			DesignItem.PropertyChanged += new PropertyChangedEventHandler(DesignItem_PropertyChanged);
@@ -80,6 +89,28 @@ namespace ICSharpCode.WpfDesign.Designer.OutlineView
 				}
 			}
 		}
+		
+		
+		bool _isDesignTimeVisible = true;
+
+		public bool IsDesignTimeVisible
+		{
+			get { 
+				return _isDesignTimeVisible; 
+			}
+			set {
+				_isDesignTimeVisible = value;
+				var ctl = DesignItem.Component as UIElement;
+				ctl.Visibility = _isDesignTimeVisible ? Visibility.Visible : Visibility.Hidden;
+
+				RaisePropertyChanged("IsDesignTimeVisible");
+
+				if (!value)
+					DesignItem.Properties.GetAttachedProperty(DesignTimeProperties.IsHiddenProperty).SetValue(true);
+				else
+					DesignItem.Properties.GetAttachedProperty(DesignTimeProperties.IsHiddenProperty).Reset();
+			}
+		}
 
 		ObservableCollection<OutlineNode> children = new ObservableCollection<OutlineNode>();
 

src/AddIns/DisplayBindings/WpfDesign/WpfDesign.Designer/Project/OutlineView/OutlineView.xaml

@@ -107,7 +107,7 @@
 							              Margin="{TemplateBinding Level, Converter={StaticResource LevelConverter}}"
 							              IsChecked="{Binding IsExpanded, RelativeSource={RelativeSource TemplatedParent}}" />
 							<Border x:Name="contentBorder"
-							        HorizontalAlignment="Left">
+							        HorizontalAlignment="Stretch">
 								<ContentPresenter x:Name="PART_Header"
 									ContentSource="Header" />
 							</Border>

src/AddIns/DisplayBindings/WpfDesign/WpfDesign.Designer/Project/WpfDesign.Designer.csproj

@@ -323,6 +323,9 @@
     <Resource Include="Images\ZoomIn.png" />
     <Resource Include="Images\ZoomOut.png" />
   </ItemGroup>
+  <ItemGroup>
+    <Resource Include="Images\eye_watch.png" />
+  </ItemGroup>
   <ItemGroup>
     <CodeAnalysisDictionary Include="Configuration\CodeAnalysisDictionary.xml" />
   </ItemGroup>