Assembly: PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation
Occurs when is set to false when a tooltip is not open.
A value of false for the property is not supported for a ToolTip when it is not open. To create a tooltip that stays open until the mouse button is pressed when it is outside the tooltip, you must set both the property and the IsOpen property to true. If is set to false when the tooltip is not open, a NotSupportedException occurs.
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.