Popup.AllowsTransparency Property

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)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation

'Declaration
Public Property AllowsTransparency As Boolean
<object AllowsTransparency="bool" .../>

Property Value

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

Identifier field

AllowsTransparencyProperty

Metadata properties set to true

None

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.

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


myPopup.AllowsTransparency = True



<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>


.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

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

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
Was this page helpful?
(1500 characters remaining)
Thank you for your feedback

Community Additions

ADD
Show:
© 2014 Microsoft