线程结束

Question

怎么在线程结束的时候给textbox赋值，我的界面是这样的。是多个线程，这里我只写了一个。线程指向的方法写在一个类里面。     
 if (!thread.IsAlive) 
            {
                this.Invoke((EventHandler)(delegate//timer控件启动线程
                {
                    textBox3.Text = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
                }));
            }

Answer 1

线程函数中最后面写上你的那个invoke不就行了？

Answer 2

用 BackgroundWorker这个吧，比较容易操作。
完成后有个事件RunWorkerCompleted 。这把代码写这就行了。

Answer 3

参考这个：http://bbs.csdn.net/topics/390162519

Answer 4

有两种方法：
一是把 TextBox 传到线程中去，然后用 TextBox.Invoke 显示时间
二是把没信号的 AutoResetEvent 传到线程中去，然后用 AutoResetEvent.Set() 设为有信号，在主窗体判断是 if(AutoResetEvent.WaitOne(0)) { 显示时间，删除 AutoResetEvent}

Answer 5

Invoke就是看不到效果吧，beginInvoke呢？

Answer 6

Invoke就是看不到效果吧，beginInvoke呢？还是不行，我的线程查询的数据库量很大。

Answer 7

点击手动加载数据时调用这个方法。在所有线程结束的时候给“本次结束时间”跟“最后同步时间”的文本框赋值，我能调试到线程关闭，但是就是没有赋值。
public void Data_insert()
        {
            Thread tr = null;
            Thread swr = null;
            Thread srr = null;
            Thread str = null;
            Thread spr = null;
            Thread fs= null;
            Thread fl = null;
            Thread fx= null;
            string[] type = { "ST_RIVER_R", "ST_WAS_R", "ST_RSVR_R", "ST_TIDE_R", "ST_PPTN_R", "" };
            for (int i = 0; i < type.Length; i++)
            {
                switch (type[i])
                {                    case "ST_RIVER_R":   //河道。
                        {
                            try
                            {
                                tr = new Thread(new ParameterizedThreadStart(ST_RIVER_R));
                                tr.Name = "ST_RIVER_R";
                                tr.IsBackground = true;
                                tr.Start(listBox1);
                            }
                            catch (Exception)
                            {
                                throw;
                            }
                            break;
                        }
                    case "ST_WAS_R":   //闸坝。
                        {
                            try
                            {
                                swr = new Thread(new ParameterizedThreadStart(ST_WAS_R));
                                swr.IsBackground = true;
                                swr.Start(listBox1);
                            }
                            catch (Exception)
                            {
                                throw;
                            }
                            break;
                        }
                    case "ST_RSVR_R":   //水库。
                        {
                            try
                            {
                                srr = new Thread(new ParameterizedThreadStart(ST_RSVR_R));
                                srr.IsBackground = true;
                                srr.Start(listBox1);
                            }
                            catch (Exception)
                            {                                throw;
                            }
                            break;
                        }
                    case "ST_TIDE_R":   //潮位。
                        {
                            try
                            {
                                str = new Thread(new ParameterizedThreadStart(ST_TIDE_R));
                                str.IsBackground = true;
                                str.Start(listBox1);
                            }
                            catch (Exception)
                            {                                throw;
                            }
                            break;
                        }
                    case "ST_PPTN_R":
                        {
                            try
                            {
                                spr = new Thread(new ParameterizedThreadStart(ST_PPTN_R));
                                spr.IsBackground = true;
                                spr.Start(listBox1);
                            }
                            catch (Exception)
                            {                                throw;
                            }                            break;
                        }
                    default:
                        {
                            try
                            {
                                fs = new Thread(new ParameterizedThreadStart(fengSpeed));
                                fs.IsBackground = true;
                                fs.Start(listBox1);                                fl = new Thread(new ParameterizedThreadStart(fengLi));
                                fl.IsBackground = true;
                                fl.Start(listBox1);                                fx = new Thread(new ParameterizedThreadStart(fengXiang));
                                fx.IsBackground = true;
                                fx.Start(listBox1);
                            }
                            catch (Exception)
                            {                                throw;
                            }
                            break;
                        }
                }
            }
            if ((!tr.IsAlive) && (!swr.IsAlive) && (!srr.IsAlive) && (!str.IsAlive) && (!spr.IsAlive) && (!fs.IsAlive) && (!fl.IsAlive) && (!fx.IsAlive))
            {
                this.Invoke((EventHandler)(delegate//timer控件启动线程
                {
                    //textBox3.Text = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
                    textBox2.Text = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
                    SetText3("最后同步时间为：" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"));
                }));
            }
            //this.BeginInvoke((EventHandler)(delegate { //异步
                
            //}));
        }