Gets or sets the vertical alignment characteristics applied to this element when it is composed within a parent element such as a panel or items control.
Assembly: PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation
is the Microsoft .NET property accessor for what is in reality a dependency property. This particular dependency property quite frequently has its apparent "default" value set differently in derived element classes, particularly controls. This generally occurs in one of two ways: the dependency property is re-registered to a particular derived class, but with different metadata for setting its defaults; or there is a default style being applied that sets that dependency property value differently. For example, the apparent "default" of for a ComboBoxItem control will be Center, even though ComboBoxItem inherits direct from FrameworkElement. This is because that value was reset within the default style of ComboBoxItem, within the style's control template.
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