Opc.Ua.Com.Client.ComDaClient.GetPropertyItemIds C# (CSharp) Method

        private void GetPropertyItemIds(string itemId, DaProperty[] properties)
        {
            string methodName = "IOPCItemProperties.LookupItemIDs";

            int count = properties.Length;

            // get list of ids to request.
            int[] propertyIds = new int[count];

            for (int ii = 0; ii < propertyIds.Length; ii++)
            {
                propertyIds[ii] = properties[ii].PropertyId;
            }

            // request the item ids.
            IntPtr pItemIds = IntPtr.Zero;
            IntPtr pErrors  = IntPtr.Zero;

            try
            {
                IOPCItemProperties server = BeginComCall<IOPCItemProperties>(methodName, true);

                server.LookupItemIDs(
                    itemId,
                    count,
                    propertyIds,
                    out pItemIds,
                    out pErrors);
            }
            catch (Exception e)
            {
                if (ComUtils.IsUnknownError(e, ResultIds.E_FAIL, ResultIds.E_UNKNOWNITEMID, ResultIds.E_INVALIDITEMID))
                {
                    ComUtils.TraceComError(e, methodName);
                }

                return;
            }
            finally
            {
                EndComCall(methodName);
            }

            // unmarshal results.
            string[] itemIds = ComUtils.GetUnicodeStrings(ref pItemIds, count, true);
            int[]    errors  = ComUtils.GetInt32s(ref pErrors, count, true);

            // update the objects.
            for (int ii = 0; ii < count; ii++)
            {
                if (errors[ii] >= 0)
                {
                    properties[ii].ItemId = itemIds[ii];
                }
                else
                {
                    properties[ii].ItemId = null;
                }
            }
        }