public static Task <int> CountAsyncLinqToDB <TSource>(
this IQueryable <TSource> source,
CancellationToken token = default)
=> AsyncExtensions.CountAsync(source.ToLinqToDB(), token);
public static Task <int> CountAsyncLinqToDB <TSource>(
this IQueryable <TSource> source,
Expression <Func <TSource, bool> > predicate,
CancellationToken token = default)
=> AsyncExtensions.CountAsync(source.ToLinqToDB(), predicate, token);
/// <summary>
/// Returns the number of elements in the specified sequence that satisfies a condition
/// </summary>
/// <typeparam name="TSource">The type of the elements of source</typeparam>
/// <param name="source">An sequence that contains the elements to be counted</param>
/// <param name="predicate">A function to test each element for a condition</param>
/// <returns>
/// The number of elements in the sequence that satisfies the condition in the predicate
/// function
/// </returns>
public static Task <int> CountAsync <TSource>(this IQueryable <TSource> source,
Expression <Func <TSource, bool> > predicate = null)
{
return(predicate == null?AsyncExtensions.CountAsync(source) : AsyncExtensions.CountAsync(source, predicate));
}
