DelegatedCommandDispatcherExecuteAsync - метод

public Task<bool> ExecuteAsync(
	IRoutedCommand command,
	CancellationToken cancellationToken = default
)

Public Function ExecuteAsync ( 
	command As IRoutedCommand,
	Optional cancellationToken As CancellationToken = Nothing
) As Task(Of Boolean)

public:
virtual Task<bool>^ ExecuteAsync(
	IRoutedCommand^ command, 
	CancellationToken cancellationToken = CancellationToken()
) sealed

abstract ExecuteAsync : 
        command : IRoutedCommand * 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _cancellationToken = defaultArg cancellationToken new CancellationToken()
*)
-> Task<bool> 
override ExecuteAsync : 
        command : IRoutedCommand * 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _cancellationToken = defaultArg cancellationToken new CancellationToken()
*)
-> Task<bool>