LayoutElement Class

Base class of all elements of the layout model.

Syntax

Visual Basic
C#

'Declaration
 
<TypeDescriptionProviderAttribute(MS.Internal.ComponentModel.DependencyObjectProvider)>
<NameScopePropertyAttribute("NameScope", System.Windows.NameScope)>
<SerializableAttribute()>
Public MustInherit Class LayoutElement 
   Inherits System.Windows.DependencyObject
   Implements ILayoutElement

'Usage
 
Dim instance As LayoutElement

[TypeDescriptionProvider(MS.Internal.ComponentModel.DependencyObjectProvider)]
[NameScopeProperty("NameScope", System.Windows.NameScope)]
[Serializable()]
public abstract class LayoutElement : System.Windows.DependencyObject, ILayoutElement

Remarks

The LayoutElement class provides properties, events, and handlers relating to the basic layout structure, namely, the parent and root of a derived element.

AvalonDock adheres to an MVVM design.

The Model is represented by the classes contained in the Xceed.Wpf.AvalonDock.Layout namespace. The classes in this namespace are the layout elements in a layout model (for example LayoutAnchorable/LayoutDocument, LayoutAnchorablePane/LayoutDocumentPane, LayoutAnchorablePaneGroup/LayoutDocumentPaneGroup, etc.) that are used directly in XAML within a DockingManager to describe how the layout is composed.

The View is represented by the classes contained in the Xceed.Wpf.AvalonDock.Controls namespace; these classes are a set of stylizable controls that show the user controls. The names of the view controls typically end with "Control" (for example, LayoutAnchorableControl is the view control, whereas LayoutAnchorable is the model element).

The DockingManager uses various classes (such as the LayoutItem and its derived classes) to perform the role of the ViewModel, preparing the model to be consumed by the view.

There is one and only one logical tree, which has the DockingManager as its root. Even if a control is placed in a different window (i.e., autohidden windows or floating windows), it always belong to the same logical tree below the DockingManager.

Inheritance Hierarchy

System.Object
   System.Windows.Threading.DispatcherObject
      System.Windows.DependencyObject
         Xceed.Wpf.AvalonDock.Layout.LayoutElement
            Xceed.Wpf.AvalonDock.Layout.LayoutContent
            Xceed.Wpf.AvalonDock.Layout.LayoutFloatingWindow
            Xceed.Wpf.AvalonDock.Layout.LayoutGroupBase
            Xceed.Wpf.AvalonDock.Layout.LayoutRoot

Requirements

Target Platforms: Windows 11, Windows 10, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

LayoutElement Members
Xceed.Wpf.AvalonDock.Layout Namespace