bug in read list

and the pdu parsing part

I think it's gurux internal problem. because it tries to parse this packets and gets error and does not send request for next packet.

I mean guux does not request for next packet in this case. (when the requested parameter are too much. here is 17 parameter to read with list)

as I know , there isn't anywhere in GXDLMSDirector that I can use to read multiple object as list.
but I used "GxDlmsCommunicator" class and below method
public void ReadList(List<KeyValuePair<GXDLMSObject, int>> list)
to read objects as list.
as I understand in reading with this method, when the request object count is high (17 in this case), gurux does not request for additional frames after receiving the second packet I attached in question and throw exception like GXDLMSDirector whit this call stack:
at Gurux.DLMS.GXByteBuffer.GetUInt8(Int32 index)
at Gurux.DLMS.GXByteBuffer.GetUInt8()
at Gurux.DLMS.GXDLMS.HandleGetResponseWithList(GXDLMSSettings settings, GXReplyData reply)
at Gurux.DLMS.GXDLMS.HandleGetResponse(GXDLMSSettings settings, GXReplyData reply, Int32 index)
at Gurux.DLMS.GXDLMS.GetPdu(GXDLMSSettings settings, GXReplyData data)
at Gurux.DLMS.GXDLMS.GetData(GXDLMSSettings settings, GXByteBuffer reply, GXReplyData data, GXReplyData notify)
at Gurux.DLMS.GXDLMSClient.GetData(GXByteBuffer reply, GXReplyData data, GXReplyData notify)
at GxDlmsCommunicator.ReadDLMSPacket(Byte[] data, Int32 tryCount, GXReplyData reply) in

thank for your reply.
I use this method as is in GXDLMSCommunicator class in GXDLMSDirector.

public void ReadList(List<KeyValuePair<GXDLMSObject, int>> list)
{
byte[][] data = client.ReadList(list);
GXReplyData reply = new GXReplyData();
List<object> values = new List<object>();
foreach (byte[] it in data)
{
ReadDataBlock(it, "", 1, 1, reply);
//Value is null if data is send in multiple frames.
if (reply.Value is IEnumerable<object>)
{
values.AddRange((IEnumerable<object>)reply.Value);
}
reply.Clear();
}
if (values.Count != list.Count)
{
throw new Exception("Invalid reply. Read items count do not match.");
}
client.UpdateValues(list, values);
}

this works fine until we keep list Item below 7 or 8.
my problem rises when I want to read 17 Items with list and the response is more than one packet.

I rechecked the problem and I think there is problem in parsing pdu. as you can see in picture and below packets :

TX: 7EA04F00027671033239C5E6E600C003C106002D0000190400FF0200002D0000190400FF0300002C0000190300FF050000290000190000FF020000290000190000FF030000290000190000FF0600A4537E
RX: 7EA0350300027671520923E6E700C403C106000908696E7465726E657400120000000000120FDB0009060000190100FF00120258AC3C7E

the response packet contains 6 object value , but when gurux parse them, the order of response does not hold. I think your code cannot understand the correct data type and cannot parse the result correctly.
you can check the response packet translate with below picture. in response packet only third object value is null, but in gurux translation 2 value is null.
also value[5] should be in value[4] . the order is incorrect.

I translated it already with youe "gurux dlms translator" and the result is :

1: 7E A0 35 03 00 02 76 71 52 09 23 E6 E7 00 C4 03 C1 06 00 09 08 69 6E 74 65 72 6E 65 74 00 12 00 00 00 00 00 12 0F DB 00 09 06 00 00 19 01 00 FF 00 12 02 58 AC 3C 7E
<HDLC len="34" >
<TargetAddress Value="1" />
<!-- Logical address:1, Physical address:7608 -->
<SourceAddress Value="5DB8" />
<FrameType Value="52" />
<PDU>
<GetResponse>
<GetResponseWithList>
<!-- Priority: High, ServiceClass: Confirmed, Invoke ID: 1 -->
<InvokeIdAndPriority Value="C1" />
<Result Qty="06" >
<Data>
<!-- internet -->
<OctetString Value="696E7465726E6574" />
</Data>
<Data>
<UInt16 Value="0000" />
</Data>
<Data>
<None />
</Data>
<Data>
<UInt16 Value="0FDB" />
</Data>
<Data>
<!-- 0.0.25.1.0.255 -->
<OctetString Value="0000190100FF" />
</Data>
<Data>
<UInt16 Value="0258" />
</Data>
</Result>
</GetResponseWithList>
</GetResponse>
</PDU>
</HDLC>

as you can see in this translation, there is only one null value.
I think this zeros "00 00" is one null value , as you do in gurux translator.but in code , each "00" considered as null value.

can you please check this again ?

thank you very much I'm waiting for new release