Opc.Ua.BaseVariableTypeState.ReadNonValueAttribute C# (CSharp) Method

        protected override ServiceResult ReadNonValueAttribute(
            ISystemContext context,
            uint attributeId,
            ref object value)
        {
            ServiceResult result = null;

            switch (attributeId)
            {
                case Attributes.DataType:
                {
                    NodeId dataType = m_dataType;

                    if (OnReadDataType != null)
                    {
                        result = OnReadDataType(context, this, ref dataType);
                    }

                    if (ServiceResult.IsGood(result))
                    {
                        value = dataType;
                    }

                    return result;
                }

                case Attributes.ValueRank:
                {
                    int valueRank = m_valueRank;

                    if (OnReadValueRank != null)
                    {
                        result = OnReadValueRank(context, this, ref valueRank);
                    }

                    if (ServiceResult.IsGood(result))
                    {
                        value = valueRank;
                    }

                    return result;
                }

                case Attributes.ArrayDimensions:
                {
                    IList<uint> arrayDimensions = m_arrayDimensions;

                    if (OnReadArrayDimensions != null)
                    {
                        result = OnReadArrayDimensions(context, this, ref arrayDimensions);
                    }

                    if (ServiceResult.IsGood(result))
                    {
                        value = arrayDimensions;
                    }

                    return result;
                }
            }

            return base.ReadNonValueAttribute(context, attributeId, ref value);
        }