ToolTipClosing Event

FrameworkElement.ToolTipClosing Event


Occurs just before any tooltip on the element is closed.

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

public event ToolTipEventHandler ToolTipClosing

Marking the ToolTipClosing event as handled does not cancel closing the tooltip. Once the tooltip is displayed, closing the tooltip is done only in response to user interaction with the UI.

This event cannot be an EventTrigger in a style. This is because the identifier field of this event re-uses an implementation from a service that does not expose add/remove event methods for the service-level event.

Identifier field


Routing strategy




  • Override OnToolTipClosing to implement class handling for this event in derived classes.

.NET Framework
Available since 3.0
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