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ToolTipEventArgs Class
 

Provides event information for events that occur when a tooltip opens or closes.

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

Inheritance Hierarchy
SystemObject
   SystemEventArgs
     System.WindowsRoutedEventArgs
      System.Windows.ControlsToolTipEventArgs

Syntax
public sealed class ToolTipEventArgs : RoutedEventArgs
public ref class ToolTipEventArgs sealed : RoutedEventArgs
[<Sealed>]
type ToolTipEventArgs = 
    class
        inherit RoutedEventArgs
    end
Public NotInheritable Class ToolTipEventArgs
	Inherits RoutedEventArgs
Properties
NameDescription
System_CAPS_pubproperty

Gets or sets a value that indicates the present state of the event handling for a routed event as it travels the route. (Inherited from RoutedEventArgs.)

System_CAPS_pubproperty

Gets the original reporting source as determined by pure hit testing, before any possible adjustment by a parent class.(Inherited from RoutedEventArgs.)

System_CAPS_pubproperty

Gets or sets the associated with this RoutedEventArgs instance. (Inherited from RoutedEventArgs.)

System_CAPS_pubproperty

Gets or sets a reference to the object that raised the event. (Inherited from RoutedEventArgs.)

Methods
NameDescription
System_CAPS_pubmethod Equals

Determines whether the specified object is equal to the current object.(Inherited from Object.)

System_CAPS_pubmethod GetHashCode

Serves as the default hash function. (Inherited from Object.)

System_CAPS_pubmethod GetType

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_pubmethod ToString

Returns a string that represents the current object.(Inherited from Object.)

Remarks

When a tooltip opens and closes, this class provides event information. The element that specifies the tooltip inherits from either FrameworkElement or ContentElement. Therefore, open and close events exist on both of these classes. The following table lists the events that use this class.

Events that occur when a tooltip opens

Events that occur when a tooltip closes

FrameworkElementToolTipOpening

FrameworkElementToolTipClosing

FrameworkContentElementToolTipOpening

FrameworkContentElementToolTipClosing

These events are registered by the ToolTipService class as the ToolTipOpeningEvent and ToolTipClosingEvent fields. The FrameworkElement and FrameworkContentElement classes both implement the ToolTipService and expose this event by defining the events in the previous table

The ToolTipEventArgs class overrides the InvokeEventHandler method. However, this protected member does not appear on the ToolTipEventArgs list of members because the method is sealed and cannot be overridden in classes from ToolTipEventArgs. The implementation of the method in this class casts the event handler delegate that is provided as a parameter to the method to the ToolTipEventHandler type.

If the tooltip is defined as a ToolTip object, the Opened and Closed events of the ToolTip class are also raised when a tooltip opens and closes.

Version Information
.NET Framework
Available since 3.0
Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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