.NET Framework 4.6 and 4.5
type CleanUpVirtualizedItemEventHandler =
e:CleanUpVirtualizedItemEventArgs -> unit
This delegate must be used by the CleanUpVirtualizedItem event handler.
The CleanUpVirtualizedItem event is an attached event, but it has a direct routing strategy, which means it can only be handled on the object where it is raised.
Supported in: 4.6, 4.5, 4, 3.5, 3.0
.NET Framework Client Profile
Supported in: 4, 3.5 SP1