IFileObjectInvalidateContentAsync - метод

Task InvalidateContentAsync(
	Func<Action, CancellationToken, Task> executePropertyChangedAsync = null,
	CancellationToken cancellationToken = default
)

Function InvalidateContentAsync ( 
	Optional executePropertyChangedAsync As Func(Of Action, CancellationToken, Task) = Nothing,
	Optional cancellationToken As CancellationToken = Nothing
) As Task

Task^ InvalidateContentAsync(
	Func<Action^, CancellationToken, Task^>^ executePropertyChangedAsync = nullptr, 
	CancellationToken cancellationToken = CancellationToken()
)

abstract InvalidateContentAsync : 
        ?executePropertyChangedAsync : Func<Action, CancellationToken, Task> * 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _executePropertyChangedAsync = defaultArg executePropertyChangedAsync null
        let _cancellationToken = defaultArg cancellationToken new CancellationToken()
*)
-> Task