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总结网络上的解决方案：新线程=> 委托=> 主界面的异步更新方法(IAsyncResult BeginInvoke(Delegate method)),一句话就是通过委托调用另一个线程的异步方法.
验证方法：当线程执行时，拖拽主窗体，没有卡死迹象.
1 using System; 2 using System.Collections.Generic; 3 using System.ComponentModel; 4 using System.Data; 5 using System.Drawing; 6 using System.Linq; 7 using System.Text; 8 using System.Threading; 9 using System.Threading.Tasks; 10 using System.Windows.Forms; 11 12 namespace WinFormInvoke 13 { 14 public partial class frMain : Form 15 { 16 Invoker Invoker; 17 18 public frMain() 19 { 20 InitializeComponent(); 21 } 22 23 private void frMain_Load(object sender, EventArgs e) 24 { 25 Invoker = new Invoker(AsynUpdateTxtMethod); 26 } 27 28 public void UpdateTxtMethod(string msg) 29 { 30 tbResult.AppendText(msg + "\r\n"); 31 tbResult.ScrollToCaret(); 32 } 33 34 public void AsynUpdateTxtMethod(string msg) 35 { 36 if (tbResult.InvokeRequired) 37 { 38 this.BeginInvoke(new Invoker.CallbackFunc(UpdateTxtMethod), msg); 39 } 40 else 41 { 42 UpdateTxtMethod(msg); 43 } 44 } 45 46 private void btnStart_Click(object sender, EventArgs e) 47 { 48 Invoker.DoThread(int.Parse(tbAmount.Text.Trim())); 49 } 50 } 51 }
1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Text; 5 using System.Threading; 6 using System.Threading.Tasks; 7 8 namespace WinFormInvoke 9 { 10 public class Invoker 11 { 12 public delegate void CallbackFunc(string msg); 13 public CallbackFunc AsynCallback; 14 15 public Invoker(CallbackFunc callback) 16 { 17 AsynCallback = callback; 18 } 19 20 public virtual void TheadMethod(int amount) 21 { 22 this.AsynCallback("线程开始"); 23 for (int i = 0; i < amount; i++) 24 { 25 this.AsynCallback(i.ToString()); 26 Thread.Sleep(1000); 27 } 28 29 this.AsynCallback("线程结束"); 30 } 31 32 public virtual void DoThread(int amount) 33 { 34 Thread t = new Thread(new ThreadStart(delegate 35 { 36 TheadMethod(amount); 37 })); 38 39 t.Start(); 40 } 41 } 42 }
Code: WinFormInvoke.zip
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原文地址：http://www.cnblogs.com/AspDotNetMVC/p/5693440.html
