XPQueryExtensions.SumAsync<T>(IQueryable<T>, Expression<Func<T, Int64>>, CancellationToken) Method

public static Task<long> SumAsync<T>(
    this IQueryable<T> query,
    Expression<Func<T, long>> selector,
    CancellationToken cancellationToken = default(CancellationToken)
)

<ExtensionAttribute>
Public Shared Function SumAsync(Of T)(
    query As IQueryable(Of T),
    selector As Expression(Of Func(Of T, Long)),
    cancellationToken As CancellationToken = Nothing
) As Task(Of Long)