ExtensionsExecuteSelectFirstOrDefaultAsyncT(DbCommand, FuncIDataRecord, T, T, CancellationToken) - метод

public static Task<T> ExecuteSelectFirstOrDefaultAsync<T>(
	this DbCommand command,
	Func<IDataRecord, T> selector,
	T defaultValue,
	CancellationToken cancellationToken = default
)

<ExtensionAttribute>
Public Shared Function ExecuteSelectFirstOrDefaultAsync(Of T) ( 
	command As DbCommand,
	selector As Func(Of IDataRecord, T),
	defaultValue As T,
	Optional cancellationToken As CancellationToken = Nothing
) As Task(Of T)

public:
[ExtensionAttribute]
generic<typename T>
static Task<T>^ ExecuteSelectFirstOrDefaultAsync(
	DbCommand^ command, 
	Func<IDataRecord^, T>^ selector, 
	T defaultValue, 
	CancellationToken cancellationToken = CancellationToken()
)

[<ExtensionAttribute>]
static member ExecuteSelectFirstOrDefaultAsync : 
        command : DbCommand * 
        selector : Func<IDataRecord, 'T> * 
        defaultValue : 'T * 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _cancellationToken = defaultArg cancellationToken new CancellationToken()
*)
-> Task<'T>