随笔

读取XML中的数据对串口配置,小玩意

 /// <summary>
   /// fSerialPort :fSerialPort的构造函数
   /// </summary>
    public class fSerialPort :SerialPort
    {
          //构造函数,实例串口时自动对该串口进行配置
        public  fSerialPort(string portname):base(portname)
            //: base(portname, 0x2580, Parity.None, 8, StopBits.One)
        {
            XmlDocument xDoc = new XmlDocument();
            xDoc.Load("CommConfig.xml");
            XmlNodeList rNodelist = xDoc.SelectSingleNode("Bean").ChildNodes;
            try
            {
                foreach (XmlNode xNode1 in rNodelist)
                {
                    XmlElement Xe1 = (XmlElement)xNode1;
                    XmlNodeList rNodelist2 = Xe1.ChildNodes;
                    foreach (XmlNode xNode2 in rNodelist2)
                    {
                        if (portname == Xe1.GetAttribute("CommName"))
                        {
                            XmlElement Xe2 = (XmlElement)xNode2;
                            XmlNodeList rNodelist3 = Xe2.ChildNodes;
                            foreach (XmlNode xNode3 in rNodelist3)
                            {
                                if (Xe2.Name == "BaudRate")
                                {
                                    BaudRate = int.Parse(Xe2.InnerText);
                                    
                                }
                                if (Xe2.Name == "DataBits")
                                {
                                    DataBits = int.Parse(Xe2.InnerText);
                                }
                                if (Xe2.Name == "Parity")
                                {
                                    Parity = (Parity)int.Parse (Xe2.InnerText);
                                }
                                if (Xe2.Name == "StopBits")
                                {
                                    StopBits = (StopBits)int.Parse (Xe2.InnerText);
                                }
                                ParityReplace = 0x3f;    
                            }
                        }
                       // dname = Xe1.GetAttribute("CommDevice"); //设备类型
                     }
                }
            }
            catch
            {

            }
        }
    }