/// <summary>
/// 应用端口配置,不包括端口名称
/// </summary>
/// <param name="setting"></param>
/// <param name="port"></param>
public static SerialPort ApplySettings(this SerialPortSetting setting, SerialPort port)
{
if (port == null)
{
throw new ArgumentNullException(nameof(port));
}
setting.ValidateSettings();
//保持 端口开关状态,如果已经打开,在结尾处重新打开该端口
var isOpened = port.IsOpen;
if (isOpened)
{
port.Close();
}
port.PortName = setting.PortName;
port.BaudRate = setting.BaudRate;
port.DataBits = setting.DataBits;
port.Handshake = setting.Handshake;
port.Parity = setting.Parity;
port.StopBits = setting.StopBits;
port.DtrEnable = setting.Dtr;
port.RtsEnable = setting.Rts;
//port.DsrHolding = true;
if (isOpened)
{
port.Open();
}
return(port);
}
/// <summary>
/// 检查端口是否可用
/// </summary>
/// <param name="setting"></param>
/// <returns></returns>
public static bool Invaliable(this SerialPortSetting setting)
{
if (string.IsNullOrEmpty(setting?.PortName))
{
return(false);
}
return(SerialPort.GetPortNames().Contains(setting.PortName) && setting.TryOpenPort());
}
/// <summary>
/// 尝试打开端口
/// </summary>
/// <param name="setting"></param>
/// <returns></returns>
private static bool TryOpenPort(this SerialPortSetting setting)
{
try {
using (var port = setting.CreatePort()) {
port.Open();
return(true);
}
} catch (Exception) {
return(false);
}
}
/// <summary>
/// 检查端口设置是否合法
/// </summary>
/// <param name="setting"></param>
private static void ValidateSettings(this SerialPortSetting setting)
{
if (string.IsNullOrEmpty(setting.PortName))
{
throw new ArgumentException("Port Name not is Empty");
}
if (!SerialPort.GetPortNames().Contains(setting.PortName))
{
throw new ArgumentException($"Port Name {setting.PortName} is Invalid");
}
}
/// <summary>
/// 从串口对象实例获取参数
/// </summary>
/// <param name="setting"></param>
/// <param name="port"></param>
public static SerialPortSetting AssignFrom(this SerialPortSetting setting, SerialPort port)
{
if (port == null)
{
throw new ArgumentNullException(nameof(port));
}
setting.PortName = port.PortName;
setting.BaudRate = port.BaudRate;
setting.DataBits = port.DataBits;
setting.Handshake = port.Handshake;
setting.StopBits = port.StopBits;
setting.Parity = port.Parity;
setting.Dtr = port.DtrEnable;
setting.Rts = port.RtsEnable;
return(setting);
}
public void ApplyPortSetting(SerialPortSetting setting)
{
this.PortSetting = setting;
}
public SerialPortManager(SerialPortSetting setting)
{
this.PortSetting.AssignFrom(setting.ToString());
InitSerialPort();
}
/// <summary>
/// 从CSV 字符串中读取串口配置
/// "COM1,9600,8,1,1"
/// $"{settings.PortName},{settings.BaudRate},{settings.DataBits},{settings.StopBits},{settings.Parity}"
/// </summary>
/// <param name="setting"></param>
/// <param name="settingParam"></param>
/// <returns></returns>
public static SerialPortSetting AssignFrom(this SerialPortSetting setting, string settingParam)
{
if (string.IsNullOrEmpty(settingParam))
{
//返回默认值
return(setting);
}
if (string.Equals(setting.ToString(), settingParam))
{
//setting 没有变化
return(setting);
}
if (settingParam.Contains(","))
{
var values = settingParam.Split(',');
for (int i = 0; i < values.Length; i++)
{
var val = values[i];
if (string.IsNullOrEmpty(val))
{
continue;
}
switch (i)
{
case 0:
setting.PortName = val;
break;
case 1:
setting.SetProperty(s => s.BaudRate, val);
break;
case 2:
setting.SetProperty(s => s.DataBits, val);
break;
case 3:
setting.SetProperty(s => s.StopBits, val);
break;
case 4:
setting.SetProperty(s => s.Parity, val);
break;
case 5:
setting.SetProperty(s => s.Handshake, val);
break;
default:
if (string.Equals(val, "DTR", StringComparison.CurrentCultureIgnoreCase))
{
setting.Dtr = true;
}
if (string.Equals(val, "RTS", StringComparison.CurrentCultureIgnoreCase))
{
setting.Rts = true;
}
break;
}
}
}
else
{
if (SerialPort.GetPortNames().Contains(settingParam))
{
setting.PortName = settingParam;
}
}
setting.RasieOnChanged();
return(setting);
}
