System.Collections.SortedList.KeyList.CopyTo C# (CSharp) Method

            public virtual void CopyTo(Array array, int arrayIndex)
            {
                if (array != null && array.Rank != 1)
                    throw new ArgumentException(SR.Arg_RankMultiDimNotSupported, nameof(array));
                Contract.EndContractBlock();

                // defer error checking to Array.Copy
                Array.Copy(_sortedList._keys, 0, array, arrayIndex, _sortedList.Count);
            }