public virtual IQueryable <TSource> DefaultIfEmpty <TSource>(IQueryable <TSource> source)
{
return(Queryable.DefaultIfEmpty <TSource>(source));
}
/// <inheritdoc cref="Queryable.DefaultIfEmpty{TSource}(IQueryable{TSource}, TSource)" />
public static IQueryableAndAsyncQueryable <TSource> DefaultIfEmpty <TSource>(this IQueryableAndAsyncQueryable <TSource> source, TSource defaultValue)
{
return((IQueryableAndAsyncQueryable <TSource>)Queryable.DefaultIfEmpty <TSource>(source, defaultValue));
}