C#多線程 委託事件

線程查詢數據上傳服務器

首先創建一個 聲明委託和事件 線程

        //聲明委託與時間
        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)
        {
            //調用test實例的MyThread方法
            Thread thread = new Thread(new ThreadStart(doSomething1));
            //啓動線程
            thread.Start();
           
        }
        /// <summary>
        /// 線程方法 //查詢數據庫，找到未上傳的數據，可在多線程中啓動
        /// </summary>
        private void doSomething1()
        {
            //DataProcessing dp = new DataProcessing();
            int i = 0;
            while (true)
            {
                ///髮卡記錄上傳接口
                DataSet ds = DbHelperSQL.Query("SELECT * from Base_Card where UpLoadStatus=0");
                if (ds.Tables[0].Rows.Count != 0)
                {
                    //如果找到了，開啓執行事件
                    //這裏的參數可以是你數據的實體類
                    
                    this.UpLoad(ds ,"");
                }
                //線程 界面傳值
                this.Invoke(new Action(() =>
                {
                    lbl_progress.Text = i++.ToString();
                }));
                //線程休眠500毫        
                Thread.Sleep(1000);
            }
        }
        /// <summary>
        /// 加載。。。
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Frm_Main_Load(object sender, EventArgs e)
        {
            //綁定事件
            DataProcessing pub = new DataProcessing(this);
            UpLoad += pub.upload;
            
        }

事件處理數據上傳類

 /// <summary>
    /// 數據處理
    /// </summary>
    class DataProcessing
    {

        public  DataProcessing(Frm_Main test1)
        {
            
        }
        /// <summary>
        /// 髮卡記錄上傳接口（vn_base_card）
        /// </summary>
        public void upload(DataSet ds, string type)
        {
            //這裏上傳數據
            System.Windows.Forms.MessageBox.Show("上傳數據啦");

        }
}

  
        /// <summary>
        /// 關閉窗體終止線程
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Frm_Main_FormClosing(object sender, FormClosingEventArgs e)
        {
            Environment.Exit(0);
        }