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

            public override void Reverse(int index, int count)
            {
                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.Reverse(_baseIndex + index, count);
                InternalUpdateVersion();
            }