示例#1
0
        //加载
        private void Form1_Load(object sender, EventArgs e)
        {
            INIFILE.Profile.LoadProfile();//加载所有

            // 预置波特率
            switch (Profile.G_BAUDRATE)
            {
                case "300":
                    cbBaudRate.SelectedIndex = 0;
                    break;
                case "600":
                    cbBaudRate.SelectedIndex = 1;
                    break;
                case "1200":
                    cbBaudRate.SelectedIndex = 2;
                    break;
                case "2400":
                    cbBaudRate.SelectedIndex = 3;
                    break;
                case "4800":
                    cbBaudRate.SelectedIndex = 4;
                    break;
                case "9600":
                    cbBaudRate.SelectedIndex = 5;
                    break;
                case "19200":
                    cbBaudRate.SelectedIndex = 6;
                    break;
                case "38400":
                    cbBaudRate.SelectedIndex = 7;
                    break;
                case "115200":
                    cbBaudRate.SelectedIndex = 8;
                    break;
                default:
                    {
                        MessageBox.Show("波特率预置参数错误。");
                        return;
                    }
            }
            //预置数据位
            switch (Profile.G_DATABITS)
            {
                case "5":
                    cbDataBits.SelectedIndex = 0;
                    break;
                case "6":
                    cbDataBits.SelectedIndex = 1;
                    break;
                case "7":
                    cbDataBits.SelectedIndex = 2;
                    break;
                case "8":
                    cbDataBits.SelectedIndex = 3;
                    break;
                default:
                    {
                        MessageBox.Show("数据位预置参数错误。");
                        return;
                    }
            }
            //预置停止位
            switch (Profile.G_STOP)
            {
                case "1":
                    cbStop.SelectedIndex = 0;
                    break;
                case "1.5":
                    cbStop.SelectedIndex = 1;
                    break;
                case "2":
                    cbStop.SelectedIndex = 2;
                    break;
                default:
                    {
                        MessageBox.Show("停止位预置参数错误。");
                        return;
                    }
            }

            //预置校验位
            switch (Profile.G_PARITY)
            {
                case "None":
                    cbParity.SelectedIndex = 0;
                    break;
                case "Odd":
                    cbParity.SelectedIndex = 1;
                    break;
                case "Even":
                    cbParity.SelectedIndex = 2;
                    break;
                default:
                    {
                        MessageBox.Show("校验位预置参数错误。");
                        return;
                    }
            }
            //预置CAN速率
            switch (Profile.G_RATE)
            {
                case "10":
                    canRate.SelectedIndex = 0;
                    break;
                case "20":
                    canRate.SelectedIndex = 1;
                    break;
                case "50":
                    canRate.SelectedIndex = 2;
                    break;
                case "100":
                    canRate.SelectedIndex = 3;
                    break;
                case "125":
                    canRate.SelectedIndex = 4;
                    break;
                case "250":
                    canRate.SelectedIndex = 5;
                    break;
                case "500":
                    canRate.SelectedIndex = 6;
                    break;
                case "800":
                    canRate.SelectedIndex = 7;
                    break;
                case "1024":
                    canRate.SelectedIndex = 8;
                    break;
                default:
                    {
                        MessageBox.Show("CAN速率预置参数错误。");
                        return;
                    }
            }

            //检查是否含有串口
            string[] str = SerialPort.GetPortNames();
            if (str == null)
            {
                MessageBox.Show("本机没有串口!", "Error");
                return;
            }

            //添加串口项目
            foreach (string s in System.IO.Ports.SerialPort.GetPortNames())
            {//获取有多少个COM口
                //System.Diagnostics.Debug.Write(s);
                cbSerial.Items.Add(s);
            }

            //message
            string sql_m = "select * from cantoolapp.canmessage";
            SqlHelper.connect();
            SqlDataReader sqldr_m = SqlHelper.query(sql_m);
            while (sqldr_m.Read())
            {
                string messageName = (string)sqldr_m["messagename"];
                CANMessageObject temp = new CANMessageObject();
                temp.MessageName = messageName.ToCharArray();
                temp.Id = Convert.ToUInt32(sqldr_m["id"]);
                canMessage.Add(temp);
                message.Items.Add(messageName);
            }
            SqlHelper.close();

            //串口设置默认选择项
            //cbSerial.SelectedIndex = 1;         //note:获得COM9口,但别忘修改

            Control.CheckForIllegalCrossThreadCalls = false;
            //这个类中我们不检查跨线程的调用是否合法(因为.net 2.0以后加强了安全机制,,不允许在winform中直接跨线程访问控件的属性)
            sp1.DataReceived += new SerialDataReceivedEventHandler(sp1_DataReceived);
            //sp1.ReceivedBytesThreshold = 1;

            //准备就绪              
            sp1.DtrEnable = true;
            sp1.RtsEnable = true;
            //设置数据读取超时为1秒
            sp1.ReadTimeout = 1000;
            sp1.Close();
        }