Gurux.DLMS.GXDLMS.ReadResponseDataBlockResult C# (CSharp) Method

        static bool ReadResponseDataBlockResult(GXDLMSSettings settings, GXReplyData reply, int index)
        {
            reply.Error = 0;
            byte lastBlock = reply.Data.GetUInt8();
            // Get Block number.
            UInt32 number = reply.Data.GetUInt16();
            int blockLength = GXCommon.GetObjectCount(reply.Data);
            // Check block length when all data is received.
            if ((reply.MoreData & RequestTypes.Frame) == 0)
            {
                if (blockLength != reply.Data.Size - reply.Data.Position)
                {
                    throw new OutOfMemoryException();
                }
                reply.Command = Command.None;
                if (reply.Xml != null)
                {
                    reply.Data.Trim();
                    reply.Xml.AppendStartTag(Command.ReadResponse, SingleReadResponse.DataBlockResult);
                    reply.Xml.AppendLine(TranslatorTags.LastBlock, "Value", reply.Xml.IntegerToHex(lastBlock, 2));
                    reply.Xml.AppendLine(TranslatorTags.BlockNumber, "Value", reply.Xml.IntegerToHex(number, 4));
                    reply.Xml.AppendLine(TranslatorTags.RawData, "Value", GXCommon.ToHex(reply.Data.Data, false, 0, reply.Data.Size));
                    reply.Xml.AppendEndTag(Command.ReadResponse, SingleReadResponse.DataBlockResult);
                    return false;
                }
            }
            GetDataFromBlock(reply.Data, index);
            // Is not Last block.
            if (lastBlock == 0)
            {
                reply.MoreData = (RequestTypes)(reply.MoreData | RequestTypes.DataBlock);
            }
            else
            {
                reply.MoreData = (RequestTypes)(reply.MoreData & ~RequestTypes.DataBlock);
            }
            //If meter's block index is zero based.
            if (number != 1 && settings.BlockIndex == 1)
            {
                settings.BlockIndex = (uint)number;
            }
            UInt32 expectedIndex = settings.BlockIndex;
            if (number != expectedIndex)
            {
                throw new ArgumentException(
                    "Invalid Block number. It is " + number
                    + " and it should be " + expectedIndex + ".");
            }
            // If last packet and data is not try to peek.
            if (reply.MoreData == RequestTypes.None)
            {
                reply.Data.Position = 0;
                HandleReadResponse(settings, reply, index);
                settings.ResetBlockIndex();
            }
            return true;
        }