C#多线程 委托事件

线程查询数据上传服务器

首先创建一个 声明委托和事件 线程

        //声明委托与时间
        public delegate void UpLoadHandler(DataSet dataset, string type);
        public event UpLoadHandler UpLoad;
        
        /// <summary>
        /// 
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btn_CloseThread_Click(object sender, EventArgs e)
        {
            //调用test实例的MyThread方法
            Thread thread = new Thread(new ThreadStart(doSomething1));
            //启动线程
            thread.Start();
           
        }
        /// <summary>
        /// 线程方法 //查询数据库，找到未上传的数据，可在多线程中启动
        /// </summary>
        private void doSomething1()
        {
            //DataProcessing dp = new DataProcessing();
            int i = 0;
            while (true)
            {
                ///发卡记录上传接口
                DataSet ds = DbHelperSQL.Query("SELECT * from Base_Card where UpLoadStatus=0");
                if (ds.Tables[0].Rows.Count != 0)
                {
                    //如果找到了，开启执行事件
                    //这里的参数可以是你数据的实体类
                    
                    this.UpLoad(ds ,"");
                }
                //线程 界面传值
                this.Invoke(new Action(() =>
                {
                    lbl_progress.Text = i++.ToString();
                }));
                //线程休眠500毫        
                Thread.Sleep(1000);
            }
        }
        /// <summary>
        /// 加载。。。
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Frm_Main_Load(object sender, EventArgs e)
        {
            //绑定事件
            DataProcessing pub = new DataProcessing(this);
            UpLoad += pub.upload;
            
        }

事件处理数据上传类

 /// <summary>
    /// 数据处理
    /// </summary>
    class DataProcessing
    {

        public  DataProcessing(Frm_Main test1)
        {
            
        }
        /// <summary>
        /// 发卡记录上传接口（vn_base_card）
        /// </summary>
        public void upload(DataSet ds, string type)
        {
            //这里上传数据
            System.Windows.Forms.MessageBox.Show("上传数据啦");

        }
}

  
        /// <summary>
        /// 关闭窗体终止线程
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Frm_Main_FormClosing(object sender, FormClosingEventArgs e)
        {
            Environment.Exit(0);
        }