System.Collections.ArrayList.Range.Sort C# (CSharp) Method

            public override void Sort(int index, int count, IComparer comparer)
            {
                if (index < 0 || count < 0)
                    throw new ArgumentOutOfRangeException(index < 0 ? nameof(index) : nameof(count), SR.ArgumentOutOfRange_NeedNonNegNum);
                if (_baseSize - index < count)
                    throw new ArgumentException(SR.Argument_InvalidOffLen);
                Contract.EndContractBlock();

                InternalUpdateRange();
                _baseList.Sort(_baseIndex + index, count, comparer);
                InternalUpdateVersion();
            }