Opc.Ua.ValueRanks.IsValid C# (CSharp) Method

        public static bool IsValid(IList<uint> actualArrayDimensions, int valueRank, IList<uint> expectedArrayDimensions)
        {
            // check if parameter omitted.
            if (actualArrayDimensions == null || actualArrayDimensions.Count == 0)
            {
                return expectedArrayDimensions == null || expectedArrayDimensions.Count == 0;
            }

            // no array dimensions allowed for scalars.
            if (valueRank == ValueRanks.Scalar)
            {
                return false;
            }

            // check if one dimension required.
            if (valueRank == ValueRanks.OneDimension || valueRank == ValueRanks.ScalarOrOneDimension)
            {
                if (actualArrayDimensions.Count != 1)
                {
                    return false;
                }
            }

            // check number of dimensions.
            if (valueRank != ValueRanks.OneOrMoreDimensions)
            {
                if (actualArrayDimensions.Count != valueRank)
                {
                    return false;
                }
            }

            // nothing more to do if expected dimensions omitted.
            if (expectedArrayDimensions == null || expectedArrayDimensions.Count == 0)
            {
                return true;
            }

            // check dimensions.
            if (expectedArrayDimensions.Count != actualArrayDimensions.Count)
            {
                return false;
            }

            // check length of each dimension.
            for (int ii = 0; ii < expectedArrayDimensions.Count; ii++)
            {
                if (expectedArrayDimensions[ii] != actualArrayDimensions[ii] && expectedArrayDimensions[ii] != 0)
                {
                    return false;
                }
            }

            // everything ok.
            return true;
        }
    }