Example #1
0
        private void ReceivedCallBack(IAsyncResult ar)
        {
            int    errorCode = 0;
            string errorMsg  = "接收成功";

            //若SerialPort已经打开
            if (ISerialPort != null && ISerialPort.IsOpen)
            {
                try
                {
                    #region 接收数据

                    int    nBytesRec   = ISerialPort.BytesToRead;
                    byte[] _dataBuffer = new byte[nBytesRec];
                    ISerialPort.Read(_dataBuffer, 0, nBytesRec);

                    if (nBytesRec > 0)
                    {
                        errorMsg = string.Format("串口:[{0}]{1}", ISerialPort.PortName, errorMsg);

                        ReceivedData.Clear();
                        string strtemp = Encoding.Default.GetString(_dataBuffer, 0, nBytesRec);
                        ReceivedData.Append(strtemp);

                        if (ReceivedEvt != null)
                        {
                            System.Windows.Forms.Control target = ReceivedEvt.Target as System.Windows.Forms.Control;
                            if (target != null && target.InvokeRequired)
                            {
                                //非创建控件线程同步调用事件:SerialPortConnected
                                target.Invoke(ReceivedEvt, new object[] { ReceivedData.ToString(),
                                                                          ProCommon.Communal.ToolFunctions.GetSubData(_dataBuffer, 0, nBytesRec) });
                            }
                            else
                            {
                                //创建控件线程调用事件
                                ReceivedEvt(Property, ReceivedData.ToString(),
                                            ProCommon.Communal.ToolFunctions.GetSubData(_dataBuffer, 0, nBytesRec));
                            }
                        }
                    }
                    else
                    {
                        errorCode = 1; errorMsg = "接收数据为空";
                        //Common.SocketClosedEventHandler d=new Common.SocketClosedEventHandler();
                        if (ClosedEvt != null)
                        {
                            System.Windows.Forms.Control target = ClosedEvt.Target as System.Windows.Forms.Control;
                            if (target != null && target.InvokeRequired)
                            {
                                //非创建控件线程同步调用事件:SocketClosed
                                target.Invoke(ClosedEvt, new object[] { errorCode, errorMsg });
                            }
                            else
                            {
                                //创建控件线程调用事件
                                ClosedEvt(Property, errorCode, errorMsg);
                            }
                        }
                    }
                    #endregion
                }
                catch
                {
                    try
                    {
                        if (ClosedEvt != null)
                        {
                            System.Windows.Forms.Control target = ClosedEvt.Target as System.Windows.Forms.Control;
                            if (target != null && target.InvokeRequired)
                            {
                                //非创建控件线程同步调用事件:SocketClosed
                                target.Invoke(ClosedEvt, new object[] { errorCode, errorMsg });
                            }
                            else
                            {
                                //创建控件线程调用事件
                                ClosedEvt(Property, errorCode, errorMsg);
                            }
                        }
                    }
                    catch { }
                }
            }
            else
            {
                Property.IsConnected = false; //改变连接属性
            }
        }