固定扫描枪的C#程序
1. new SerialPort 对象 serialPort1
2. 给serialPort1的端口名赋值.
3. 设置serialPort1的参数值
如：
private void SettingComm(object serialPortobj)
{
SerialPort serialPort = (SerialPort)serialPortobj;
serialPort.BaudRate = 9600;
serialPort.Parity = Parity.None;
serialPort.StopBits = StopBits.One;
serialPort.DataBits = 8;
serialPort.DiscardNull = true;
}
4. 打开端口 serialPort1.Open();
5. 将事件挷定到端口上.
serialPort1.DataReceived += serialportReceiveData;
6. 接收来自端口的数据
private void serialportReceiveData(object sender, SerialDataReceivedEventArgs e)
{
try
{
SerialPort serialPort = (SerialPort)sender;
ReceiveData(serialPort);
}
catch (Exception ex)
{
ScannerEventLog.WriteEntry("Error receiving data. Error Msg=" + ex.Message);
}
}
private void ReceiveData(SerialPort serialPort)
{
try
{
Thread threadReceiveSub = new Thread(new ParameterizedThreadStart(AsyReceiveData));
threadReceiveSub.Start(serialPort);
}
catch (Exception ex)
{
ScannerEventLog.WriteEntry("Error receiving data. Error Msg=" + ex.Message);
}
}
7.
private void AsyReceiveData(object serialPortobj)
{
string strXML = "";
try
{
SerialPort serialPort = (SerialPort)serialPortobj;
System.Threading.Thread.Sleep(100);
string str = serialPort.ReadExisting();
if (str == string.Empty)
{
return;
}
// Station ID is hardcoded for the moment
//strXML = "<STATIONID>" + System.Configuration.ConfigurationSettings.AppSettings[serialPort.PortName].ToString()+ "</STATIONID><DATA>";
// remove redundant 1st char.
//str = str.Substring(1, str.Length - 1);
//strXML = "<PRODUCTION_REQUEST><COMPLETE><SFC_LIST><SFC><SITE>" + System.Configuration.ConfigurationSettings.AppSettings["SITE"].ToString() + "</SITE>";
//strXML += "<ACTIVITY>" + System.Configuration.ConfigurationSettings.AppSettings["ACTIVITY"].ToString() + "</ACTIVITY>";
//strXML += "<ID>" + str + "</ID>";
//strXML += "<RESOURCE>" + System.Configuration.ConfigurationSettings.AppSettings["RESOURCE"].ToString() + "</RESOURCE>";
//strXML += "<OPERATION>" + System.Configuration.ConfigurationSettings.AppSettings["OPERATION"].ToString() + "</OPERATION>";
//strXML += "<USER>" + System.Configuration.ConfigurationSettings.AppSettings["USER"].ToString() + "</USER>";
//strXML += "<QUICK_COMPLETE>" + System.Configuration.ConfigurationSettings.AppSettings["QUICK_COMPLETE"].ToString() + "</QUICK_COMPLETE>";
//strXML += "</SFC></SFC_LIST></COMPLETE></PRODUCTION_REQUEST>";
strXML = str + " 哈哈哈..mmmmmmmmmmmmmmghggggggggggggggg///////wwwwwwww<<<<<<<>?>>>>>>>>>>>.";
System.Console.Write(strXML);
HttpWebRequest wr = (HttpWebRequest)WebRequest.Create(strUrl);
HttpWebResponse res = (HttpWebResponse)wr.GetResponse();
}
catch (Exception ex)
{
ScannerEventLog.WriteEntry("Error receiving data. Error Msg=" + ex.Message);
}
}
线程间操作无效: 从不是创建控件“listBox1”的线程访问它
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