Xceed Toolkit Plus for WPF v5.0 Documentation
Xceed.Wpf.AvalonDock Assembly / Xceed.Wpf.AvalonDock.Layout Namespace / LayoutElement Class / OnParentChanging Method
The old container.
The new container.


    OnParentChanging Method (LayoutElement)
    Provides derived classes an opportunity to execute code before the Parent property changes.
    Syntax
    'Declaration
     
    Protected Overridable Sub OnParentChanging( _
       ByVal oldValue As ILayoutContainer, _
       ByVal newValue As ILayoutContainer _
    ) 
     
    'Usage
     
    Dim instance As LayoutElement
    Dim oldValue As ILayoutContainer
    Dim newValue As ILayoutContainer
     
    instance.OnParentChanging(oldValue, newValue)

    Parameters

    oldValue
    The old container.
    newValue
    The new container.
    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

    See Also