如何结束BackgroundWorker线程

Question

        /// <summary>
        /// 应用程序的主入口点。
         /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new QTEST());
        }
BackgroundWorker 的 DoWork 事件里面的工作完成后,上面的语句就抛异常了
调用的目标发生了异常 
TargetInvocationException 
怎么解决
在此请教各位朋友

Answer 1

DoWork的代码如下        private void backgroundWorker3_DoWork(object sender, DoWorkEventArgs e)
        {
            for (int i = 1; i <= progressBar1.Maximum; i++)
            {
                System.Threading.Thread.Sleep(100);
                backgroundWorker3.ReportProgress(i);
            }
        }

Answer 2

private void backgroundWorker3_DoWork(object sender, DoWorkEventArgs e)
        {
            for (int i = 0; i < progressBar1.Maximum; i++)
            {
                System.Threading.Thread.Sleep(100);
                backgroundWorker3.ReportProgress(i);
            }
        }
你这样试试

Answer 3

BackgroundWorker worker = null;
private void button1_Click(object sender, EventArgs e)
        {
            //StringBuilder sb = new StringBuilder();
            //sb.Append("asdf1");
            //MessageBox.Show(sb.Remove(sb.Length - 1, 1).ToString());
            worker = new BackgroundWorker();
            worker.WorkerReportsProgress = true;
            worker.WorkerSupportsCancellation = true;
            worker.DoWork += new DoWorkEventHandler(worker_DoWork);
            worker.ProgressChanged += new ProgressChangedEventHandler(worker_ProgressChanged);
            worker.RunWorkerAsync();
        }        void worker_ProgressChanged(object sender, ProgressChangedEventArgs e)
        {
            progressBar1.Value = e.ProgressPercentage;
        }        void worker_DoWork(object sender, DoWorkEventArgs e)
        {
            for (int i = 0; i < progressBar1.Maximum; i++)
            {
                System.Threading.Thread.Sleep(10);
                worker.ReportProgress(i);
            }        }
这是我写的，已经测试没有问题

Answer 4

已经解决问题了
我加了这么一句        private void backgroundWorker3_DoWork(object sender, DoWorkEventArgs e)
        {
            for (int i = 0; i < progressBar1.Maximum; i++)
            {
                System.Threading.Thread.Sleep(100);
                backgroundWorker3.ReportProgress(i);
            }
            e.Cancel = true;
        }

Answer 5

我也遇到同样问题了，但是加上e.Cancel = true;也没起作用？？