BusinessCalendarServiceGetDateDiffAsync - метод

Public Function GetDateDiffAsync ( 
	dateTimeStart As DateTime,
	dateTimeEnd As DateTime,
	Optional zoneOffset As TimeSpan? = Nothing,
	Optional cancellationToken As CancellationToken = Nothing
) As Task(Of Long)

public:
virtual Task<long long>^ GetDateDiffAsync(
	DateTime dateTimeStart, 
	DateTime dateTimeEnd, 
	Nullable<TimeSpan> zoneOffset = nullptr, 
	CancellationToken cancellationToken = CancellationToken()
) sealed

abstract GetDateDiffAsync : 
        dateTimeStart : DateTime * 
        dateTimeEnd : DateTime * 
        ?zoneOffset : Nullable<TimeSpan> * 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _zoneOffset = defaultArg zoneOffset null
        let _cancellationToken = defaultArg cancellationToken new CancellationToken()
*)
-> Task<int64> 
override GetDateDiffAsync : 
        dateTimeStart : DateTime * 
        dateTimeEnd : DateTime * 
        ?zoneOffset : Nullable<TimeSpan> * 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _zoneOffset = defaultArg zoneOffset null
        let _cancellationToken = defaultArg cancellationToken new CancellationToken()
*)
-> Task<int64>