String need to split when bytes(intindex) = 13

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I am using this server socket application and found it is working very good.

I am facing one isssue which is, when client send lengthy strings continuously , then it is showing as splitted lines on text box.3/4 strings as one packet and other part is coming in the next packet.

How can I solve ths?

Pls help

What I have tried:

For intIndex = offset To offset + count - 1
           If Bytes(intIndex) = 13 Then
               RaiseEvent LineReceived(Me, mobjText.ToString)
               mobjText = New StringBuilder()
           Else
               mobjText.Append(ChrW(Bytes(intIndex)))
           End If
       Next

Posted 4-Mar-20 3:54am

Member 14746412

Updated 5-Mar-20 4:46am

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Richard Deeming 4-Mar-20 10:11am

If you have a question about an article, then post it in the message forum at the bottom of that article.

The chances of the author stumbling across this question here and realising it's for them are minuscule.

2 solutions

Solution 2

Thank u so much.

I solvedmyissue like below

C#

<pre>  private void tcpServer1_OnDataAvailable(tcpServer.TcpServerConnection connection)
        {
            byte[] data = readStream(connection.Socket);
            int intIndex;
            int startindex=0;

            for (intIndex = 0; intIndex < data.Length; intIndex++)
            {             

                if (data[intIndex] == 13)
                {
                    if (data != null)
                    {

                        //string splitstring=data.
                        string dataStr = Encoding.ASCII.GetString(data).Substring(startindex,(intIndex-startindex));
                        //dataStr = dataStr + dataStr.Replace("\r", "").Replace("\n", "") + "\r\n";
                        invokeDelegate del = () =>
                        {
                            logData(false, dataStr);
                        };
                        Invoke(del);

                        startindex = intIndex;
                    }
                }
                else
                {
                }
            }          
        }

Posted 5-Mar-20 4:47am

Member 14746412

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Greg Utas · Accepted Answer · 2020-03-04T04:36:00

I'm not sure I understand the problem. It looks like the code is creating a new string whenever it sees a "13" (carriage return). But as far as the packets go, TCP is stream-oriented, which means that a packet does not have to end at a "message" boundary. The packets that contain client strings can be split arbitrarily. Each packet could contain part of a string or several strings, and it is up to the receiver to reassemble them and divide them at whatever points make sense, which is what this code appears to be doing.