public delegate void MaintenanceProgressEventHandler(
	Object sender,
	DataProvider. MaintenanceProgressEventArgs e
)

Public Delegate Sub MaintenanceProgressEventHandler ( 
	sender As Object,
	e As DataProvider. MaintenanceProgressEventArgs
)

type MaintenanceProgressEventHandler = 
    delegate of 
        sender : Object * 
        e : DataProvider. MaintenanceProgressEventArgs -> unit