TileSourceNotifyOpeningAsync - метод

public Task NotifyOpeningAsync(
	TileSourceEventArgs e,
	CancellationToken cancellationToken = default
)

Public Function NotifyOpeningAsync ( 
	e As TileSourceEventArgs,
	Optional cancellationToken As CancellationToken = Nothing
) As Task

public:
virtual Task^ NotifyOpeningAsync(
	TileSourceEventArgs^ e, 
	CancellationToken cancellationToken = CancellationToken()
) sealed

abstract NotifyOpeningAsync : 
        e : TileSourceEventArgs * 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _cancellationToken = defaultArg cancellationToken new CancellationToken()
*)
-> Task 
override NotifyOpeningAsync : 
        e : TileSourceEventArgs * 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _cancellationToken = defaultArg cancellationToken new CancellationToken()
*)
-> Task