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UIElement.Visibility 属性

Gets or sets the user interface (UI) visibility of this element. This is a dependency property.

命名空间: System.Windows
程序集: PresentationCore(在 presentationcore.dll 中)
XML 命名空间:  http://schemas.microsoft.com/winfx/2006/xaml/presentation

[LocalizabilityAttribute(LocalizationCategory.None, Readability=Readability.Unreadable)] 
public Visibility Visibility { get; set; }
/** @property */
public Visibility get_Visibility ()

/** @property */
public void set_Visibility (Visibility value)

public function get Visibility () : Visibility

public function set Visibility (value : Visibility)

<object Visibility="Visibility" .../>

属性值

A value of the enumeration. The default value is Visible.

Identifier field

VisibilityProperty

Metadata properties set to true

None

Setting this property affects the value of IsVisible, which in turn may raise the IsVisibleChanged event. However, IsVisible has other factors that influence it, for instance the visibility settings of parents that contain it.

Elements where Visibility is not Visible do not participate in input events (or commands), do not influence either the Measure or Arrange passes of layout, are not in a tab sequence, and will not be reported in hit testing.

The following example implements a handler that references two different named buttons that are intended to be a mutually exclusive pair in the user interface. Prior to running the actual program logic associated with the button, the button itself is set to be Visibility.Hidden, and the other button in the pair is set to Visibility.Visible.

public void PlayMedia(object sender, MouseButtonEventArgs args)
{
    pauseBTN.Visibility = Visibility.Visible;
    playBTN.Visibility = Visibility.Collapsed;

    media.SpeedRatio = 1.0;
    media.Play();
}

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

.NET Framework

受以下版本支持:3.0
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