Occurs when the IExportable.Printable property value is updated.
event EventHandler<PrintableChangedEventArgs> PrintableChanged
Event PrintableChanged As EventHandler(Of PrintableChangedEventArgs)
The PrintableChanged event handler receives an argument of the PrintableChangedEventArgs type.
If it is required to change the control to be exported, trigger the PrintableChanged event in the Printable property's setter, to notify the ExportController that the ExportController.ExportAction state and items should be updated.