以下是我处理与串行设备的连接和交互的类的代码。我从另一个类调用connect函数，如下所示。我的问题是：更新我的进度条的最佳方法是什么，它位于与初始化后台工作者不同的类上？我遇到了问题，因为我正在尝试更新跨线程和跨类的内容。将表单类作为参数传递给我的connect函数，但是我必须通过后台worker和report progress函数传递它;它只是凌乱和不洁净。有一个更好的方法吗？任何帮助都表示赞赏，并提前感谢。
我从（也是我的WPF类）调用连接函数的类：
public partial class agentRadio : Window
{
private void connectButton_Click(object sender, RoutedEventArgs e) //Connect button clicked
{
agentradioread.connect((string)portsOpen.SelectedValue, this);
}
}
处理我的串行交互的类：
class agentRadioRead //Handles connection and reading of device values
{
/*Local variable declarations*/
SerialPort agentSerial;
BackgroundWorker connectWorker;
string resultMessage = "Error: The connect function has completed without setting this status message properly.";
byte[] data = new byte[2246];
/*Public methods*/
public void connect(string selectedPort, agentRadio agentR) //Connects device, reads values, stores values, displays status message
{
agentSerial = new SerialPort(selectedPort, 9600, Parity.None, 8, StopBits.One);
connectWorker = new BackgroundWorker();
//connectWorker.WorkerReportsProgress = true;
connectWorker.DoWork += new DoWorkEventHandler(initialRead);
//connectWorker.ProgressChanged += new ProgressChangedEventHandler(reportProgress);
connectWorker.RunWorkerAsync(agentR);
}
/*Private methods*/
void initialRead(object sender, DoWorkEventArgs e)
{
agentSerial.Open();
agentSerial.BaseStream.Flush();
byte[] result = new byte[7];
byte questionMark = 63;
agentSerial.BaseStream.WriteByte(questionMark);
System.Threading.Thread.Sleep(100);
agentSerial.BaseStream.Read(result, 0, 7);
string system = "";
foreach (byte letter in result)
{
system += Convert.ToChar(letter).ToString();
}
bool read = readPort();
if (read)
{
int i = 1;
foreach (byte value in data)
{
storeData(i, value);
i++;
}
}
MessageBox.Show(resultMessage, "Status Message", MessageBoxButton.OK, MessageBoxImage.Information);
}
bool readPort()
{
bool succesfulRead = false;
agentSerial.BaseStream.Flush();
agentSerial.BaseStream.Write(Global.READ_VALUES, 0, Global.READ_VALUES.Length); //begin read values
byte key = (byte)agentSerial.BaseStream.ReadByte();
if (Global.START_COMMAND == key) //Verify continue key
{
for (int i = 0; i < 2246; i++) //Loop through values
{
try
{
data[i] = (byte)agentSerial.BaseStream.ReadByte();
agentSerial.BaseStream.Write(Global.GO_AHEAD, 0, Global.GO_AHEAD.Length);
agentSerial.BaseStream.Flush();
}
catch
{
resultMessage = "An error occured, while reading the device settings." + i;
break;
}
}
if (data[2245] != Global.FINISH_COMMAND)
{
resultMessage = "An error occured, while reading the device settings." + 2245;
}
else
{
succesfulRead = true;
}
}
else //Key failed and displays error
{
resultMessage = "An error occured, are you sure you are trying to connect to an Agent (Radio Version)? If so make sure you have followed the steps listed above.";
}
return succesfulRead;
}
void storeData(int iteration, byte value)
{
if (iteration > 0 && iteration < 385) //read schedule
{
double pos = (iteration - 1) / 48;
int i = (int)Math.Floor(pos);
int j = (iteration - 1) - (i * 48);
Create.schedule[i, j] = value;
}
if (iteration > 384 && iteration < 1285) //read alarm history
{
double pos = (iteration - 385) / 9;
int i = (int)Math.Floor(pos);
int j = (iteration - 385) - (i * 9);
Create.alarms[i, j] = value;
}
if (iteration > 1284 && iteration < 1345) //read error log
{
double pos = (iteration - 1285) / 6;
int i = (int)Math.Floor(pos);
int j = (iteration - 1285) - (i * 6);
Create.errors[i, j] = value;
}
if (iteration > 1344 && iteration < 1945) //read voltage history
{
double pos = (iteration - 1345) / 6;
int i = (int)Math.Floor(pos);
int j = (iteration - 1345) - (i * 6);
Create.voltage[i, j] = value;
}
if (iteration > 1944 && iteration < 1973) //read holidays
{
Create.holidays[iteration - 1945] = value;
}
if (iteration > 1972 && iteration < 2168) //read message sequences
{
double pos = (iteration - 1973) / 15;
int i = (int)Math.Floor(pos);
int j = (iteration - 1973) - (i * 15);
Create.messages[i, j] = value;
}
if (iteration > 2167 && iteration < 2196) //read message info
{
Create.recordings[iteration - 2168] = value;
}
if (iteration > 2195 && iteration < 2246) //read sysval
{
Create.sysval[iteration - 2196] = value;
}
if (iteration == 2246 && value == Global.FINISH_COMMAND)
{
if (Global.restoring)
{
resultMessage = "Your device has been succesfully restored.";
}
else
{
resultMessage = "Your device has been succesfully connected, and all settings have been loaded from the device.";
}
}
else
{
resultMessage = "An error occured, while reading the device settings." + "Storing";
}
}
void reportProgress(object sender, ProgressChangedEventArgs e)
{
}
}
答案 0 :(得分：0)
我会反过来这样做。 从agentRadio窗口中初始化工作线程 在agentRadioRead类中具有与设备交互相关的所有功能 从中引出所有引用表单窗口的代码。 创建此agentRadioRead类的对象并将其传递给工作线程。 使用workerthread的reportprogress事件来报告agentRadio窗口的状态更改。 让agentRadio中的事件处理程序进行任何UI更新。