PeterHarding: Created page with " * http://stackoverflow.com/questions/4661486/not-reading-complete-serial-port-data-in-c-sharp?rq=1 Use the data received event to fill a buffer:

     private void data..."

2012-11-25T21:35:05Z

Created page with " * http://stackoverflow.com/questions/4661486/not-reading-complete-serial-port-data-in-c-sharp?rq=1 Use the data received event to fill a buffer: <pre> private void data..."

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* http://stackoverflow.com/questions/4661486/not-reading-complete-serial-port-data-in-c-sharp?rq=1

Use the data received event to fill a buffer:

<pre>
private void dataReceived(object sender, SerialDataReceivedEventArgs e) {
while (port.BytesToRead > 0){
byte[] newBytes = new byte[port.BytesToRead];
int LengthRead = port.Read(newBytes, 0, newBytes.Length);
Array.Resize(ref newBytes, LengthRead);
System.Buffer.BlockCopy(newBytes, 0, buffer, positionInBuffer, newBytes.Length);
positionInBuffer += newBytes.Length;
}
}

</pre>

Looping for an expected number of bytes, in this case causing the TimeoutException:

<pre>
while (port.BytesToRead < expectedSize)
{
System.Threading.Thread.Sleep(10);
waitingLoop++;
if (waitingLoop > TimeOut) // wait for a 1s timeout
throw new TimeoutException();
}

newBytes = new byte[expectedSize];
LengthRead = port.Read(newBytes, 0, newBytes.Length);
if (LengthRead != newBytes.Length)
throw new TimeoutException(); // or any exception, doesn't matter...
</pre>

[[Category:CSharp]]
[[Category:Dot.NET]]
[[Category:Serial]]

CSharp - Serial Handling Notes - Revision history

PeterHarding: Created page with " * http://stackoverflow.com/questions/4661486/not-reading-complete-serial-port-data-in-c-sharp?rq=1 Use the data received event to fill a buffer:
private void data..."