Opc.Ua.VariableNode.Read C# (CSharp) Method

        protected override object Read(uint attributeId)
        {
            switch (attributeId)
            {
                case Attributes.DataType:                return m_dataType;
                case Attributes.ValueRank:               return m_valueRank;                    
                case Attributes.AccessLevel:             return m_accessLevel;
                case Attributes.UserAccessLevel:         return m_userAccessLevel;
                case Attributes.MinimumSamplingInterval: return m_minimumSamplingInterval;
                case Attributes.Historizing:             return m_historizing;

                // values are copied when the are written so then can be safely returned.
                case Attributes.Value:
                {
                    return m_value.Value;
                }

                // array dimensions attribute is not support if it is empty.
                case Attributes.ArrayDimensions:
                {
                    if (m_arrayDimensions == null || m_arrayDimensions.Count == 0)
                    {
                        return StatusCodes.BadAttributeIdInvalid;
                    }

                    return m_arrayDimensions.ToArray();
                }
            }

            return base.Read(attributeId);
        }