Popup::AllowsTransparency Property

 
System_CAPS_noteNote

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Gets or sets a value that indicates whether a Popup control can contain transparent content.

Namespace:   System.Windows.Controls.Primitives
Assembly:  PresentationFramework (in PresentationFramework.dll)

public:
property bool AllowsTransparency {
	bool get();
	void set(bool value);
}

Property Value

Type: System::Boolean

true if the Popup control can contain transparent content; otherwise, false. The default is false.

A Popup control can only contain transparent content when the application runs with full trust. An application that runs with full trust has complete access to system resources and is typically installed on the local system. For more information, seeSecurity (WPF).

This property cannot be set to true when the Popup is hosted in a XAML browser application (XBAP).

If the AllowsTransparency property is set to true in an application that does not run in full trust, the AllowsTransparency property value is changed to false. An application that is hosted in a browser is an example of an application that does not run in full trust.

Identifier field

AllowsTransparencyProperty

Metadata properties set to true

None

The following example shows how to set the AllowsTransparency property on a Popup control.

No code example is currently available or this language may not be supported.
<DockPanel  Width="500" Background="Aqua">
  <Popup Placement="Center" PlacementRectangle="0,0,30,50"  
          IsOpen ="True" AllowsTransparency="True"
          PopupAnimation="Fade">
    <TextBlock Background="Purple">Popup Text</TextBlock>
  </Popup>
</DockPanel>

SecurityPermission

for setting this property to true. Associated enumeration: UnmanagedCode

.NET Framework
Available since 3.0
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