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ToolTip.Popup Event

Occurs before a ToolTip is initially displayed. This is the default event for the ToolTip class.

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

member Popup : IEvent<PopupEventHandler,
    PopupEventArgs>

The Popup event is raised whenever a ToolTip is displayed, either through an explicit call to one of the Show methods or when the ToolTip class implicitly displays a ToolTip. This event can be canceled.

Calling properties in this event that cause the underlying window handle to be recreated, such as IsBalloon, will result in an exception being thrown.

The following code example demonstrates the use of this member. In the example, an event handler reports on the occurrence of the Popup event. This report helps you to learn when the event occurs and can assist you in debugging. To report on multiple events or on events that occur frequently, consider replacing MessageBox.Show with Console.WriteLine or appending the message to a multiline TextBox.

To run the example code, paste it into a project that contains an instance of type ToolTip named ToolTip1. Then ensure that the event handler is associated with the Popup event.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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