GroupBy< TSource, TKey, TResult >() [1/2]

static IQueryable< TResult > System.Linq.Queryable.GroupBy< TSource, TKey, TResult > ( this IQueryable< TSource > source, Expression< Func< TSource, TKey > > keySelector, Expression< Func< TKey, IEnumerable< TSource >, TResult > > resultSelector )

inlinestatic

Definition at line 577 of file Queryable.cs.

    {
        if (source == null)
        {
            throw Error.ArgumentNull("source");
        }
        if (keySelector == null)
        {
            throw Error.ArgumentNull("keySelector");
        }
        if (resultSelector == null)
        {
            throw Error.ArgumentNull("resultSelector");
        }
        return source.Provider.CreateQuery<TResult>(Expression.Call(null, CachedReflectionInfo.GroupBy_TSource_TKey_TResult_3(typeof(TSource), typeof(TKey), typeof(TResult)), source.Expression, Expression.Quote(keySelector), Expression.Quote(resultSelector)));
    }

References System.Linq.Error.ArgumentNull(), System.Linq.Expressions.Expression< TDelegate >.Call(), System.Linq.CachedReflectionInfo.GroupBy_TSource_TKey_TResult_3(), System.Linq.keySelector, System.Linq.Expressions.Expression< TDelegate >.Quote(), System.Linq.resultSelector, and System.Linq.source.