Raising an event invokes the event handler through a delegate.
The OnMouseLeaveElement 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 OnMouseLeaveElement in a derived class, be sure to call the base class's OnMouseLeaveElement method so that registered delegates receive the event.
In addition to the standard mouse events (i.e. MouseDown, MouseMove, MouseUp, MouseEnter, MouseLeave etc.) all PLF based controls expose 2 new events called MouseEnterElement and MouseLeaveElement.
The following code writes the type of each element as it is entered and exited to the output window.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, 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
UltraTabbedMdiManager Class
UltraTabbedMdiManager Members
Infragistics.Win.UIElementEventArgs
Infragistics.Win.UltraComponentControlManagerBase.MouseLeaveElement