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+# GroupingNode Class  
+  
+**Namespace:** Nodify  
+  
+**Assembly:** Nodify  
+  
+**Inheritance:** [Object](https://docs.microsoft.com/en-us/dotnet/api/System.Object) → [DispatcherObject](https://docs.microsoft.com/en-us/dotnet/api/System.Windows.Threading.DispatcherObject) → [DependencyObject](https://docs.microsoft.com/en-us/dotnet/api/System.Windows.DependencyObject) → [Visual](https://docs.microsoft.com/en-us/dotnet/api/System.Windows.Media.Visual) → [UIElement](https://docs.microsoft.com/en-us/dotnet/api/System.Windows.UIElement) → [FrameworkElement](https://docs.microsoft.com/en-us/dotnet/api/System.Windows.FrameworkElement) → [Control](https://docs.microsoft.com/en-us/dotnet/api/System.Windows.Controls.Control) → [ContentControl](https://docs.microsoft.com/en-us/dotnet/api/System.Windows.Controls.ContentControl) → [HeaderedContentControl](https://docs.microsoft.com/en-us/dotnet/api/System.Windows.Controls.HeaderedContentControl) → [GroupingNode](Nodify_GroupingNode)  
+  
+**References:** [GroupingMovementMode](Nodify_GroupingMovementMode), [ItemContainer](Nodify_ItemContainer), [NodifyEditor](Nodify_NodifyEditor), [ResizeEventHandler](Nodify_Events_ResizeEventHandler)  
+  
+Defines a panel with a header that groups [ItemContainer](Nodify_ItemContainer)s inside it and can be resized.  
+  
+```csharp  
+public class GroupingNode : HeaderedContentControl  
+```  
+  
+## Constructors  
+  
+### GroupingNode()  
+  
+Initializes a new instance of the [GroupingNode](Nodify_GroupingNode) class.  
+  
+```csharp  
+public GroupingNode();  
+```  
+  
+## Fields  
+  
+### ContentControl  
+  
+Gets the [ContentControl](https://docs.microsoft.com/en-us/dotnet/api/System.Windows.Controls.ContentControl) control of this [GroupingNode](Nodify_GroupingNode).  
+  
+```csharp  
+protected FrameworkElement ContentControl;  
+```  
+  
+**Field Value**  
+  
+[FrameworkElement](https://docs.microsoft.com/en-us/dotnet/api/System.Windows.FrameworkElement)  
+  
+### ElementContent  
+  
+```csharp  
+protected const string ElementContent = "PART_Content";  
+```  
+  
+**Field Value**  
+  
+[String](https://docs.microsoft.com/en-us/dotnet/api/System.String)  
+  
+### ElementHeader  
+  
+```csharp  
+protected const string ElementHeader = "PART_Header";  
+```  
+  
+**Field Value**  
+  
+[String](https://docs.microsoft.com/en-us/dotnet/api/System.String)  
+  
+### ElementResizeThumb  
+  
+```csharp  
+protected const string ElementResizeThumb = "PART_ResizeThumb";  
+```  
+  
+**Field Value**  
+  
+[String](https://docs.microsoft.com/en-us/dotnet/api/System.String)  
+  
+### GroupMovementBoxed  
+  
+```csharp  
+protected static object GroupMovementBoxed;  
+```  
+  
+**Field Value**  
+  
+[Object](https://docs.microsoft.com/en-us/dotnet/api/System.Object)  
+  
+### HeaderControl  
+  
+Gets the [HeaderedContentControl.Header](https://docs.microsoft.com/en-us/dotnet/api/System.Windows.Controls.HeaderedContentControl#header) control of this [GroupingNode](Nodify_GroupingNode).  
+  
+```csharp  
+protected FrameworkElement HeaderControl;  
+```  
+  
+**Field Value**  
+  
+[FrameworkElement](https://docs.microsoft.com/en-us/dotnet/api/System.Windows.FrameworkElement)  
+  
+### ResizeThumb  
+  
+Gets the [FrameworkElement](https://docs.microsoft.com/en-us/dotnet/api/System.Windows.FrameworkElement) used to resize this [GroupingNode](Nodify_GroupingNode).  
+  
+```csharp  
+protected FrameworkElement ResizeThumb;  
+```  
+  
+**Field Value**  
+  
+[FrameworkElement](https://docs.microsoft.com/en-us/dotnet/api/System.Windows.FrameworkElement)  
+  
+## Properties  
+  
+### ActualSize  
+  
+Gets or sets the actual size of this [GroupingNode](Nodify_GroupingNode).  
+  
+```csharp  
+public Size ActualSize { get; set; }  
+```  
+  
+**Property Value**  
+  
+[Size](https://docs.microsoft.com/en-us/dotnet/api/System.Windows.Size)  
+  
+### CanResize  
+  
+Gets or sets a value that indicates whether this [GroupingNode](Nodify_GroupingNode) can be resized.  
+  
+```csharp  
+public bool CanResize { get; set; }  
+```  
+  
+**Property Value**  
+  
+[Boolean](https://docs.microsoft.com/en-us/dotnet/api/System.Boolean)  
+  
+### Container  
+  
+Gets the [NodifyEditor](Nodify_NodifyEditor) that owns this [GroupingNode.Container](Nodify_GroupingNode#container).  
+  
+```csharp  
+protected ItemContainer Container { get; set; }  
+```  
+  
+**Property Value**  
+  
+[ItemContainer](Nodify_ItemContainer)  
+  
+### Editor  
+  
+Gets the [NodifyEditor](Nodify_NodifyEditor) that owns this [GroupingNode](Nodify_GroupingNode).  
+  
+```csharp  
+protected NodifyEditor Editor { get; set; }  
+```  
+  
+**Property Value**  
+  
+[NodifyEditor](Nodify_NodifyEditor)  
+  
+### HeaderBrush  
+  
+Gets or sets the brush used for the background of the [HeaderedContentControl.Header](https://docs.microsoft.com/en-us/dotnet/api/System.Windows.Controls.HeaderedContentControl#header) of this [GroupingNode](Nodify_GroupingNode).  
+  
+```csharp  
+public Brush HeaderBrush { get; set; }  
+```  
+  
+**Property Value**  
+  
+[Brush](https://docs.microsoft.com/en-us/dotnet/api/System.Windows.Media.Brush)  
+  
+### MovementMode  
+  
+Gets or sets the default movement mode which can be temporarily changed by holding the SwitchMovementModeModifierKey while dragging by the header.  
+  
+```csharp  
+public GroupingMovementMode MovementMode { get; set; }  
+```  
+  
+**Property Value**  
+  
+[GroupingMovementMode](Nodify_GroupingMovementMode)  
+  
+### ResizeCompletedCommand  
+  
+Invoked when the [GroupingNode.ResizeCompleted](Nodify_GroupingNode#resizecompleted) event is not handled.
+            Parameter is the [ItemContainer.ActualSize](Nodify_ItemContainer#actualsize) of the container.  
+  
+```csharp  
+public ICommand ResizeCompletedCommand { get; set; }  
+```  
+  
+**Property Value**  
+  
+[ICommand](https://docs.microsoft.com/en-us/dotnet/api/System.Windows.Input.ICommand)  
+  
+### ResizeStartedCommand  
+  
+Invoked when the [GroupingNode.ResizeStarted](Nodify_GroupingNode#resizestarted) event is not handled.
+            Parameter is the [ItemContainer.ActualSize](Nodify_ItemContainer#actualsize) of the container.  
+  
+```csharp  
+public ICommand ResizeStartedCommand { get; set; }  
+```  
+  
+**Property Value**  
+  
+[ICommand](https://docs.microsoft.com/en-us/dotnet/api/System.Windows.Input.ICommand)  
+  
+## Methods  
+  
+### OnApplyTemplate()  
+  
+```csharp  
+public override void OnApplyTemplate();  
+```  
+  
+### ToggleContentSelection()  
+  
+Toggles the selection of nodes inside this group.
+            If any contained nodes are selected, all will be unselected.
+            If none are selected, all will be selected.  
+  
+```csharp  
+public void ToggleContentSelection();  
+```  
+  
+## Events  
+  
+### ResizeCompleted  
+  
+Occurs when the node finished resizing.  
+  
+```csharp  
+public event ResizeEventHandler ResizeCompleted;  
+```  
+  
+**Event Type**  
+  
+[ResizeEventHandler](Nodify_Events_ResizeEventHandler)  
+  
+### ResizeStarted  
+  
+Occurs when the node started resizing.  
+  
+```csharp  
+public event ResizeEventHandler ResizeStarted;  
+```  
+  
+**Event Type**  
+  
+[ResizeEventHandler](Nodify_Events_ResizeEventHandler)  
+