VerticalAlignment 屬性

FrameworkElement.VerticalAlignment 屬性

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. This is a dependency property.

命名空間: System.Windows
組件: PresentationFramework (在 presentationframework.dll 中)
XML 命名空間:

public VerticalAlignment VerticalAlignment { get; set; }
/** @property */
public VerticalAlignment get_VerticalAlignment ()

/** @property */
public void set_VerticalAlignment (VerticalAlignment value)

public function get VerticalAlignment () : VerticalAlignment

public function set VerticalAlignment (value : VerticalAlignment)

<object VerticalAlignment="VerticalAlignment" .../>


A vertical alignment setting. The default is Stretch.

Identifier field


Metadata properties set to true


When Height and Width properties are explicitly set on an element, these measurements take layout precedent and cancel the regular effects of setting this property to Stretch.

VerticalAlignment 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 VerticalAlignment for a ComboBoxItem control will be Center, even though ComboBoxItem inherits VerticalAlignment direct from FrameworkElement. This is because that value was reset within the default style of ComboBoxItem, within the style's control template.

Canvas does not use VerticalAlignment when composing layout, because Canvas is based on absolute positioning.

When inherited by ComboBoxItem or any derived classes, ComboBoxItem redefines the default value of this property to be Center.

Windows Vista、Microsoft Windows XP SP2 和 Windows Server 2003 SP1 支援 Microsoft .NET Framework 3.0。

.NET Framework



© 2015 Microsoft