详情介绍c#中Winform实现多线程异步更新UI的示例代码

private void btnWrite_Click(object sender, EventArgs e)

{

 int taskCount = 10000; //任务量为10000

 this.pgbWrite.Maximum = taskCount;

 this.pgbWrite.Value = 0;

 DataWrite dataWrite = new DataWrite();//实例化一个写入数据的类

 dataWrite.UpdateUIDelegate += UpdataUIStatus;//绑定更新任务状态的委托

 dataWrite.TaskCallBack += Accomplish;//绑定完成任务要调用的委托

 Thread thread = new Thread(new ParameterizedThreadStart(dataWrite.Write));

 thread.IsBackground = true;

 thread.Start(taskCount);

}

//更新UI

private void UpdataUIStatus(int step)

{

 if (InvokeRequired)

 {

  this.Invoke(new AsynUpdateUI(delegate(int s)

  {

   this.pgbWrite.Value += s;

   this.lblWriteStatus.Text = this.pgbWrite.Value.ToString() + "/" + this.pgbWrite.Maximum.ToString();

  }), step);

 }

 else

 {

  this.pgbWrite.Value += step;

  this.lblWriteStatus.Text = this.pgbWrite.Value.ToString() + "/" + this.pgbWrite.Maximum.ToString();

 }

}

//完成任务时需要调用

private void Accomplish()

{

 //还可以进行其他的一些完任务完成之后的逻辑处理

 MessageBox.Show("任务完成");

}