C# winform编程中多线程操作控件方法

 private void Form1_Load(object sender, EventArgs e)
         {
             Thread newthread = new Thread(new ThreadStart(BackgroundProcess));
             newthread.Start();

         }

         /// <summary>
         /// 定义一个代理
         /// </summary>
         private delegate void CrossThreadOperationControl();

         private void BackgroundProcess()
         {
             // 将代理实例化为一个匿名代理
             CrossThreadOperationControl CrossDelete = delegate()
             {
                 int i = ;
                 while (i < )
                 {
                     // 向列表框增加一个项目
                     listBox1.Items.Add("Item " + i.ToString());
                     i++;
                 }
                 label1.Text = "我在新线程里访问这个lable!";
                 listBox1.Items.Add(label1.Text);
             };
             listBox1.Invoke(CrossDelete);
         }

收集一下，在C# winform编程中多线程操作控件时，可以有下面种方法：

1. 又看到一种方法（2014.1.6）：

1. 刚看到一种方法（2014.1.5）：

 private void btnTest_Click(object sender, EventArgs e)
         {
             if (this.txtIP.Text.Trim() != "" && this.txtPort.Text.Trim() != "")
             {
                 string proxy = this.txtIP.Text.Trim() + ":" + this.txtPort.Text.Trim();
                 string result = string.Empty;
                 this.btnTest.Enabled = false;
                 new Thread(delegate
                 {
                     Stopwatch stopwatch = new Stopwatch();
                     stopwatch.Start();
                     HttpClient httpClient = new HttpClient();
                     httpClient.Proxy = new WebProxy(proxy);
                     httpClient.TimeOut = ;
                     object result;
                     try
                     {
                         string a = httpClient.Get("http://www.baidu.com", "", "", "", "", "get");
                         if (a != "")
                         {
                             result = "响应成功！";
                         }
                         else
                         {
                             result = "响应失败！";
                         }
                     }
                     catch
                     {
                     }
                     stopwatch.Stop();
                     result = result;
                     result = string.Concat(new object[]
                     {
                         result,
                         ",响应花费:",
                         stopwatch.ElapsedMilliseconds,
                         "ms"
                     });
                     this.BeginInvoke(delegate
                     {
                         this.lbResult.Text = result;
                         this.btnTest.Enabled = true;
                     });
                 })
                 {
                     IsBackground = true
                 }.Start();
             }
             else
             {
                 this.lbResult.Text = "请输入完整再提交！";
             }
         }

1. 直接使用表达式和Action()

 private void btnInitEnv_Click(object sender, EventArgs e)
         {
             //初始化环境时回显出来的文字不让看
             try
             {
                 this.textBoxOutPut.Clear();
                 this.btnInitEnv.Enabled = false;
                 this.labelStateInfo.Text = "";
                 this.labelStateInfo.ForeColor = Color.Red;

                 if (!WriteToSerialPort("diags"))
                 {
                     this.btnInitEnv.Enabled = true;
                     return;
                 }

                 Thread thread = new Thread(new ThreadStart(() =>
                 {
                     int i = ;
                     bool flagFind = false;
                     StringBuilder sb = new StringBuilder();

                     while (true)
                     {
                         Thread.Sleep();
                         this.Invoke(new Action(() =>
                         {
                             sb.Append(this.textBoxOutPut.Text);
                             this.textBoxOutPut.Clear();
                             if (sb.ToString().Contains("Entering recovery mode, starting command prompt"))
                             {
                                 this.textBoxOutPut.AppendText(string.Format(PubilcConstVar.TerimalStrFormat,
                                     DateTime.Now.ToString(PubilcConstVar.TimeFormat),
                                     "Entering recovery mode, starting command prompt, Stop.\r\n"));
                                 this.labelStateInfo.ForeColor = Color.Red;
                                 this.labelStateInfo.Text = "初始化失败，请手动输入命令初始化";
                                 flagFind = true;
                                 this.btnInitEnv.Enabled = true;
                             }
                             else if (sb.ToString().Contains(":-)"))
                             {
                                 this.textBoxOutPut.AppendText(string.Format(PubilcConstVar.TerimalStrFormat,
                                     DateTime.Now.ToString(PubilcConstVar.TimeFormat),
                                     "进入操作模式成功\r\n"));
                                 this.labelStateInfo.ForeColor = Color.Blue;
                                 this.labelStateInfo.Text = "初始化成功";
                                 flagFind = true;

                                 //将业务按钮使能
                                 EnableBussinessButtons();
                             }
                         }));

                         if (flagFind || ++i > ) //找开标志或10秒超时中断
                         {
                             break;
                         }
                     }

                     if (!flagFind)
                     {
                         this.Invoke(new Action(() =>
                         {
                             this.textBoxOutPut.Clear();
                             this.labelStateInfo.ForeColor = Color.Red;
                             this.labelStateInfo.Text = "初始化失败，超时";
                             this.btnInitEnv.Enabled = true;

                             DisableBussinessButtons();
                         }));
                     }
                 }));

                 thread.IsBackground = true;
                 thread.Start();
             }
             catch (Exception ex)
             {
                 this.log.Write(ex.ToString());
             }
         }

2. 使用线程函数加action()

 private void btnInitEnv_Click(object sender, EventArgs e)
         {
             //初始化环境时回显出来的文字不让看
             try
             {
                 this.textBoxOutPut.Clear();
                 this.btnInitEnv.Enabled = false;
                 this.labelStateInfo.Text = "";
                 this.labelStateInfo.ForeColor = Color.Red;

                 if (!WriteToSerialPort("diags"))
                 {
                     this.btnInitEnv.Enabled = true;
                     return;
                 }

                 Thread thread = new Thread(new ThreadStart(MonitorOutPutThread));

                 thread.IsBackground = true;
                 thread.Start();
             }
             catch (Exception ex)
             {
                 this.log.Write(ex.ToString());
             }
         }

线程函数：

 private void MonitorOutPutThread()
         {
             int i = ;
             bool flagFind = false;
             StringBuilder sb = new StringBuilder();

             while (true)
             {
                 Thread.Sleep();
                 this.Invoke(new Action(() =>
                 {
                     sb.Append(this.textBoxOutPut.Text);
                     this.textBoxOutPut.Clear();
                     if (sb.ToString().Contains("Entering recovery mode, starting command prompt"))
                     {
                         this.textBoxOutPut.AppendText(string.Format(PubilcConstVar.TerimalStrFormat,
                             DateTime.Now.ToString(PubilcConstVar.TimeFormat),
                             "Entering recovery mode, starting command prompt, Stop.\r\n"));
                         this.labelStateInfo.ForeColor = Color.Red;
                         this.labelStateInfo.Text = "初始化失败，请手动输入命令初始化";
                         flagFind = true;
                         this.btnInitEnv.Enabled = true;
                     }
                     else if (sb.ToString().Contains(":-)"))
                     {
                         this.textBoxOutPut.AppendText(string.Format(PubilcConstVar.TerimalStrFormat,
                             DateTime.Now.ToString(PubilcConstVar.TimeFormat),
                             "进入操作模式成功\r\n"));
                         this.labelStateInfo.ForeColor = Color.Blue;
                         this.labelStateInfo.Text = "初始化成功";
                         flagFind = true;

                         //将业务按钮使能
                         EnableBussinessButtons();
                     }
                 }));

                 if (flagFind || ++i > ) //找开标志或10秒超时中断
                 {
                     break;
                 }
             }

             if (!flagFind)
             {
                 this.Invoke(new Action(() =>
                 {
                     this.textBoxOutPut.Clear();
                     this.labelStateInfo.ForeColor = Color.Red;
                     this.labelStateInfo.Text = "初始化失败，超时";
                     this.btnInitEnv.Enabled = true;

                     DisableBussinessButtons();
                 }));
             }
         }

3. 就是使用委托，这个网上例子很多，不再实现