发布：2023/3/20 0:26:58作者：管理员 来源：本站 浏览次数：545
public partial class Form1 : Form
{
/// <summary>
/// 私有：线程同步信号
/// </summary>
private ManualResetEvent cmdWaiter;
/// <summary>
/// 委托更新进度条
/// </summary>
private delegate void updateBar();
/// <summary>
/// 结束提示委托
/// </summary>
private delegate void showEnd();
/// <summary>
/// 任务队列
/// 注意：此任务队列 需要用户自动来定义
/// 实例中采用 string 来处理
/// </summary>
private List<string> taskList = new List<string>();
/// <summary>
/// 构造函数
/// </summary>
public Form1()
{
InitializeComponent();
}
/// <summary>
/// 页面初始化加载
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Form1_Load(object sender, EventArgs e)
{
// 阻塞当前线程
cmdWaiter = new ManualResetEvent(false);
// 启动线程池
ThreadPool.QueueUserWorkItem(new WaitCallback(this.On_ThreadEvent));
}
/// <summary>
/// 线程处理事务
/// </summary>
/// <param name="obj"></param>
private void On_ThreadEvent(object obj)
{
while (true)
{
try
{
// 阻塞当前线程，等待解除指令
this.cmdWaiter.WaitOne();
// 执行我们需要处理的事务
for (int k = 0; k < taskList.Count; k++)
{
Run_MyBusiness(taskList[k]);
// 休息指定的毫秒
Thread.Sleep(50);
}
// 清除队列数据
this.taskList.Clear();
this.On_EndLog();
this.cmdWaiter.Reset();
}
catch (Exception e)
{
string strError = e.Message.ToString();
this.taskList.Clear();
this.cmdWaiter.Reset();
}
}
}
/// <summary>
/// 执行我们自己的业务
/// </summary>
/// <param name="str"></param>
private void Run_MyBusiness(string str)
{
// 委托更新
updateBar updateDelegate = new updateBar(On_Update);
this.Invoke(updateDelegate);
}
/// <summary>
/// 开始按钮
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btn_Start_Click(object sender, EventArgs e)
{
this.taskList = new List<string>();
for (int i = 1; i < 1001; i++)
{
this.taskList.Add(i.ToString());
}
this.txt_log.Text = "开始：" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + Environment.NewLine;
this.pg_Bar.Value = 0;
this.pg_Bar.Maximum = this.taskList.Count;
// 解除阻塞
this.cmdWaiter.Set();
}
/// <summary>
/// 更新进度条
/// </summary>
private void On_Update()
{
this.pg_Bar.Value = this.pg_Bar.Value + 1;
}
private void On_EndLog()
{
showEnd endDeg = new showEnd(On_UpdateTextBox);
this.Invoke(endDeg);
}
private void On_UpdateTextBox()
{
string runStr = "结束：" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
this.txt_log.Text = this.txt_log.Text + runStr;
}
}
