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Popup.IsOpen Property

.NET Framework 4

Gets or sets a value that indicates whether the Popup is visible.

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

Syntax

C++

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[BindableAttribute(true)]
public bool IsOpen { get; set; }

XAML Attribute Usage

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<object IsOpen="bool" .../>

Property Value

Type: System.Boolean
true if the Popup is visible; otherwise, false. The default is false.

Dependency Property Information

Identifier field	IsOpenProperty
Metadata properties set to true	BindsTwoWayByDefault

Remarks

If a control uses a Popup as part of its default style, bind the IsOpen property of the Popup to a property of the control. For example, a ComboBox can bind its IsDropDownOpen property to the IsOpen property of the Popup. This simplifies the logic for controlling when the Popup is visible.

Examples

The following example shows how to set the IsOpen property.

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myPopupIsOpen.IsOpen = true;

XAML

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<Popup Name="myPopupIsOpen" IsOpen="True" 
       HorizontalOffset=".5cm" VerticalOffset="1cm">
  <TextBlock Background="Yellow">Popup Text</TextBlock>
</Popup>

Version Information

.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Platforms

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.

Reference

Popup Class

System.Windows.Controls.Primitives Namespace

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