How to skip/ignore null(\0) chars when reading streamed data from sockets?

periakaruppan_sg

Hi, My C# application is getting data stream from remote server. After getting receiving the data from socket, i am converting it to "String" thru the ASCII encoder(Encoder.GetString()). In the streamed data, there are some "null" characters which is indicated as '\0'. I do not know how these chars are coming with the stream. But, the streamed data is perfectly correct data and i have checked that. I am supposed to skip those null characters and read the subsequent characters. The problem i am facing now is that the embedded '\0' characters are getting mixed with the "Date" fields and thus invalidating the "Date". How to resolve this? i.e. How to skip/ignore the embedded '\0' chars in the stream. Am i making any mistake with encoders... ASCII... UTF...or something else? Hope you guys can help me resolve this. Thanks in advance. Regards, Peri

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dotnetian22y ago
Thanks for the help, modulino. Regards, Peri
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modulino22y ago
Hi, if you store the read data into a buffer (a byte array), be sure you convert to string the data received, e.g. only the portion of the buffer that holds data, and not the entire buffer... otherwise those \0 chars may be present due to buffer initialization (via new operator).
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sourcehoh22y ago
I not really know what method you ar using in your DataReceived Event, But I also facing this problem last time. And Below is my Source code, hope it is helping... public void WaitForData() { try { if ( sckClient.Connected ) { sckClient.BeginReceive( SocketdataBuffer, 0, SocketdataBuffer.Length ,SocketFlags.None, OnDataReceived, null ); } } catch(SocketException se){} catch ( Exception ex ){} } protected void OnDataReceived( IAsyncResult asyn ) { try { int intRx = sckClient.EndReceive ( asyn ); if ( intRx <= 0 ) { sckclient.Close(); return; } char[] chars = new char[intRx]; int charLen = Encoding.UTF7.GetDecoder().GetChars( SocketDataBuffer, 0, intRx, chars, 0 ); System.String szData = new System.String( chars,0,charLen ); WaitForData( ); } catch ( SocketException se ) { } catch ( Exception ex ) { } }
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