详情介绍c#中Winform实现多线程异步更新UI的示例代码(2)-木庄网络博客

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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");
}