GroupBy< TSource, TKey, TElement >() [2/2]

static ParallelQuery< IGrouping< TKey, TElement > > System.Linq.ParallelEnumerable.GroupBy< TSource, TKey, TElement > ( this ParallelQuery< TSource > source, Func< TSource, TKey > keySelector, Func< TSource, TElement > elementSelector, IEqualityComparer< TKey >? comparer )

inlinestatic

Definition at line 531 of file ParallelEnumerable.cs.

    {
        if (source == null)
        {
            throw new ArgumentNullException("source");
        }
        if (keySelector == null)
        {
            throw new ArgumentNullException("keySelector");
        }
        if (elementSelector == null)
        {
            throw new ArgumentNullException("elementSelector");
        }
        return new GroupByQueryOperator<TSource, TKey, TElement>(source, keySelector, elementSelector, comparer);
    }

References System.comparer, System.Linq.elementSelector, System.Linq.keySelector, and System.Linq.source.