ToolStripDropDown.OnClosing Method (ToolStripDropDownClosingEventArgs)


Raises the Closing event.

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

Protected Overridable Sub OnClosing (
	e As ToolStripDropDownClosingEventArgs

Raising an event invokes the event handler through a delegate. For more information, see Handling and Raising Events.

The OnClosing method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors:

When overriding OnClosing in a derived class, be sure to call the base class's OnClosing method so that registered delegates receive the event.


to use all windows and user input events without restriction. Associated enumeration: the AllWindows value of System.Security.Permissions.UIPermissionWindow

.NET Framework
Available since 2.0
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