public Form1()
{
InitializeComponent();
//串口列表
comboBoxPort.Items.AddRange(SerialPort.GetPortNames());
//波特率列表
comboBoxBaudrate.BeginUpdate();
foreach (int br in allBaudrates)
{
comboBoxBaudrate.Items.Add(br.ToString());
}
comboBoxBaudrate.EndUpdate();
//数据位列表
comboBoxDataBits.BeginUpdate();
foreach (int db in allDataBits)
{
comboBoxDataBits.Items.Add(db.ToString());
}
comboBoxDataBits.EndUpdate();
//停止位列表
comboBoxStopBits.BeginUpdate();
foreach (float sb in allStopBits)
{
comboBoxStopBits.Items.Add(sb.ToString());
}
comboBoxStopBits.EndUpdate();
//TODO: 读取保存的配置
try
{
using (FileStream stream = File.OpenRead(strCfgFileName))
{
BinaryFormatter deserializer = new BinaryFormatter(); //二进制序列化器
config = deserializer.Deserialize(stream) as PortCfg; //反序列化
int i = 0;
foreach (string name in SerialPort.GetPortNames())
{
if (name == config.portName)
{
break;
}
i++;
}
comboBoxPort.SelectedIndex = Clamp <int>(i, 0, comboBoxPort.Items.Count - 1);
comboBoxBaudrate.SelectedIndex = Clamp <int>(config.baudrateIdx, 0, comboBoxBaudrate.Items.Count - 1);
comboBoxDataBits.SelectedIndex = Clamp <int>(config.dataBitsIdx, 0, comboBoxDataBits.Items.Count - 1);
comboBoxStopBits.SelectedIndex = Clamp <int>(config.stopBitsIdx, 0, comboBoxStopBits.Items.Count - 1);
stream.Close();
}
}
catch
{
//配置文件不存在,使用默认设置
if (comboBoxPort.Items.Count > 0)
{
comboBoxPort.SelectedIndex = 0;
}
comboBoxBaudrate.SelectedIndex = 2;
comboBoxDataBits.SelectedIndex = 3;
comboBoxStopBits.SelectedIndex = 0;
}
Type type = textBoxReceive.GetType();
MethodInfo setStyle = type.GetMethod("SetStyle", BindingFlags.Instance | BindingFlags.NonPublic);
MethodInfo updateStyle = type.GetMethod("UpdateStyles", BindingFlags.Instance | BindingFlags.NonPublic);
try
{
object[] param = new object[2];
param[0] = ControlStyles.OptimizedDoubleBuffer;
param[1] = true;
setStyle.Invoke(textBoxReceive, param);
updateStyle.Invoke(textBoxReceive, null);
}
catch (Exception e) {
Console.WriteLine(e.ToString());
}
}
//尝试打开端口
bool TryOpenPort()
{
serialPort = new SerialPort();
//设置端口
serialPort.PortName = comboBoxPort.Text;
//设置波特率
serialPort.BaudRate = allBaudrates[comboBoxBaudrate.SelectedIndex];
//设置校验
serialPort.Parity = Parity.None;
//设置数据位数
serialPort.DataBits = allDataBits[comboBoxDataBits.SelectedIndex];
//设置停止位
if (comboBoxStopBits.Text == "1")
{
serialPort.StopBits = StopBits.One;
}
else if (comboBoxStopBits.Text == "1.5")
{
serialPort.StopBits = StopBits.OnePointFive;
}
else if (comboBoxStopBits.Text == "2")
{
serialPort.StopBits = StopBits.Two;
}
//接收数据回调
serialPort.DataReceived += this.OnReceivedData;
//回调阈值设置为1
serialPort.ReceivedBytesThreshold = 1;
try
{
serialPort.Open();
}
catch
{
serialPort = null;
return(false);
}
//TODO: 保存配置
if (config == null)
{
config = new PortCfg();
}
config.portName = serialPort.PortName;
config.baudrateIdx = comboBoxBaudrate.SelectedIndex;
config.dataBitsIdx = comboBoxDataBits.SelectedIndex;
config.stopBitsIdx = comboBoxStopBits.SelectedIndex;
using (FileStream stream = File.Create(strCfgFileName))
{
BinaryFormatter serializer = new BinaryFormatter(); //二进制格式序列化器
serializer.Serialize(stream, config); //序列化对象到文件中
stream.Close();
}
return(true);
}