Largest Element in the Array using C #

To find out the largest element in the array by comparing to the Max method
This methd has an Big Oh notation performance of O(n)

  public static int GetIndexLargestCompareToMax(int[] numbers)
        {
            int currentMaxIndex = -1;
            int length = numbers.Length;

            try
            {
                if (length == 0)
                    currentMaxIndex = -1;
                else if (length == 1)
                    currentMaxIndex = 0;
                else
                {
                    currentMaxIndex = 0;
                    for (int j = 1; j < length; j++)
                    {
                        if (numbers[j] > numbers[currentMaxIndex])
                        {
                            currentMaxIndex = j;
                        }
                    }
                }

            }
            catch (Exception)
            {
                currentMaxIndex = -1;
            }
            return currentMaxIndex;
        }