WINFORM开发中常用的UI线程同步相关代码

using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.Threading.Tasks; using System.Threading; namespace ThreadTestApp {
   /// 
 /// 线程同步测试 /// 
     public partial class Form1 : Form     {
   public Form1()         {
               InitializeComponent();         } private void btnInvoke_Click(object sender, EventArgs e)         {
   //1.直接调用             OperateUI(DoSomeThing("直接调用")); //2.同步器调用             var v2 = new Task
     
      (() => DoSomeThing("同步器调用"));             v2.Start();             v2.ContinueWith((o) => { OperateUI(o.Result); }, CancellationToken.None,                     TaskContinuationOptions.OnlyOnRanToCompletion, TaskScheduler.FromCurrentSynchronizationContext()); //3.异步异常捕捉             var v3 = new Task
      
       (() => DoSomeThing("ThrowEx"));             v3.Start();             v3.ContinueWith((o) => { OperateUI(v3.Exception.InnerExceptions[0].Message); }, CancellationToken.None,                     TaskContinuationOptions.OnlyOnFaulted, TaskScheduler.FromCurrentSynchronizationContext()); //4.经典UI调用             ThreadPool.QueueUserWorkItem((o) => { Classic(DoSomeThing("经典UI调用")); });         } private void Classic(string v)         {
   if (this.InvokeRequired) //需要找到一个调用控件             {
                   Action
       
         a = new Action
        
         (OperateUI); this.Invoke(a, new object[] { v });             } else             {
                   OperateUI(v);             }         } private void OperateUI(string v)         {
               tabDisplay.TabPages.Add(v);             lblDisplay.Text = v;             MessageBox.Show(v); this.Text = v;         } private string DoSomeThing(string v)         {
   if (v == "ThrowEx") throw new Exception("自定义异常"); else return "[" + v + "]";         }     } }