C#Backgroundworker,带多个参数,不取消
我正在使用一个具有多个参数的backgroundworker。 工人正在使用我的参数。 但我的问题是,我无法阻止幕后工作人员C#Backgroundworker,带多个参数,不取消,c#,.net,multithreading,backgroundworker,cancellation,C#,.net,Multithreading,Backgroundworker,Cancellation,我正在使用一个具有多个参数的backgroundworker。 工人正在使用我的参数。 但我的问题是,我无法阻止幕后工作人员 .... BackgroundWorker workerGetAdvData; workerGetAdvData = new BackgroundWorker(); workerGetAdvData.DoWork += new DoWorkEventHandler(getAdvData.request_DoWork); workerGetAdvData.RunWorke
....
BackgroundWorker workerGetAdvData;
workerGetAdvData = new BackgroundWorker();
workerGetAdvData.DoWork += new DoWorkEventHandler(getAdvData.request_DoWork);
workerGetAdvData.RunWorkerAsync(clsComSettingMain);
........
class ClsGetAdvData
{
//open Serial Port with settings from clsComSettings class
byte[] adv_request = { 0xF0, 0x02, 0x0D }; //Command for requesting advanced sensor data from PFC
public void request_DoWork(object sender, DoWorkEventArgs e)
{
ClsComSettingMain clsComSettingMain = (ClsComSettingMain)e.Argument;
string comPort = clsComSettingMain.comport;
int baudRate = clsComSettingMain.baudRate;
if (comPort != null && baudRate != 0)
{
SerialPort serialPort = new SerialPort(comPort, baudRate);
serialPort.Open();
while (true)
{
if (e.Cancel)
{
e.Cancel = true;
break;
}
else
{
serialPort.Write(adv_request, 0, 3); // Write byte array to serial port, with no offset, all 3 bytes
Thread.Sleep(500);
}
}
}
}
}
我正试图用以下代码取消后台工作程序:
private void MenuItem_Click_Serial_Stop(object sender, RoutedEventArgs e)
{
if (workerGetAdvData.IsBusy) //check if worker is running
{
workerGetAdvData.CancelAsync();
}
}
}
但工人并没有停止。因为我在worker中使用的参数,它不工作吗
问候
巴斯蒂安
致以最诚挚的问候在您的嫁妆代码中,您应该这样检查
public void request_DoWork(object sender, DoWorkEventArgs e)
{
var worker = (BackgroundWorker)sender;
ClsComSettingMain clsComSettingMain = (ClsComSettingMain)e.Argument;
string comPort = clsComSettingMain.comport;
int baudRate = clsComSettingMain.baudRate;
if (comPort != null && baudRate != 0)
{
SerialPort serialPort = new SerialPort(comPort, baudRate);
serialPort.Open();
while (true)
{
if (worker.CancellationPending)
{
e.Cancel = true;
break;
}
else
{
serialPort.Write(adv_request, 0, 3); // Write byte array to serial port, with no offset, all 3 bytes
Thread.Sleep(500);
}
}
}
}
只要阅读
CancelAsync
方法,您就可以轻松回答这个问题。@BastiAn欢迎您。如果它对你有用,你可以考虑投票和/或接受答案。通过这种方式,你将获得一些声誉积分,并对你未来的问题给予更多关注。