1，定义线程名，线程开始标识，连接服务器成功标识，退出程序标识，源数据库，目标数据库

private Thread preg;//线程名
        private bool tureOfalse;//线程执行标识
        public bool conYes;//连接服务成功失败标识
        private bool one = false;//退出程序标识
        string strdbHipis = System.Configuration.ConfigurationManager.AppSettings["NewHmFrameWork_QHS_SQ"].ToString();//源数据库
        //string strdbPreg = System.Configuration.ConfigurationManager.AppSettings["NewHmFrameWork_QHS_SQ_QingHai"].ToString();//目标数据库
        string strdbPreg = System.Configuration.ConfigurationManager.ConnectionStrings["NewHmFrameWork_QHS_SQ"].ToString();//目标数据库

2，主方法实行调用：

public MainForm()
        {
            InitializeComponent();
            btStop.Enabled = false;//未开启进程，不允许取消进程
            //委托
            InitTrayIcon();//图标托盘委托
            Control.CheckForIllegalCrossThreadCalls = false;//线程委托
            this.FormClosing += new FormClosingEventHandler(form_Closing);//退出程序委托
        }

3，图标声明

//图标声明
        NotifyIcon trayIcon = new NotifyIcon();
        //图标路径C:\Users\Administrator\Desktop\DataSynchronousBWokerUI\DataSynchronousBWokerUI\Images\_net_32.ico
        private Icon mNetTrayIcon = new Icon("..//Images//_net_32.ico");

4，线程开始

//线程开始
        private void btStart_Click(object sender, EventArgs e)
        {
            tureOfalse = true;
            preg = new Thread(new ThreadStart(PREG));
            preg.Start();

            btStart.Enabled = false;
            btStop.Enabled = true;
        }

5，线程方法

//线程方法
        private void PREG()
        {
            do
            {
                listBox1.Items.Add("正在连接源数据库... ...!");
                listBox1.Items.Add("正在连接目标数据库... ...!");
                ISopenCon();
            } while (!conYes);
            DoWork_select();
        }

6，线程停止

//线程停止
        private void btStop_Click(object sender, EventArgs e)
        {
            tureOfalse = false;
            preg.Abort();
            /*2015/2/2 调整：点击[取消同步]，清空listbox当前数据*/
            this.listBox1.Items.Clear();
            listBox1.Items.Add("待同步... ...");
            //控件显示隐藏

            btStart.Enabled = true;
            btStop.Enabled = false;
        }

7，连接目标数据库失败将信息写入LOG

/// 

        /// 连接目标数据库失败将信息写入LOG
        /// 
        /// 
        /// 
        private void fslog(Exception ex)
        {
            string filepath = DateTime.Now.ToString("yyyyMMdd") + ".log";
            FileStream fs = new FileStream(filepath, FileMode.Append, FileAccess.Write);
            StreamWriter sw = new StreamWriter(fs);
            DateTime time = DateTime.Now;
            sw.WriteLine(time);
            //sw.WriteLine("连接目标数据库失败");
            sw.WriteLine(ex.Message);
            sw.WriteLine("---------------------------------------------------------");
            sw.Close();
            fs.Close();
        }

8，尝试连接源、目标数据库

/// 

        /// 尝试连接源、目标数据库
        /// 
        /// 
        /// 
        private void ISopenCon()
        {

            try
            {
                SqlConnection conhipis = new SqlConnection(strdbHipis);
                conhipis.Open();
                conYes = true;
                conhipis.Close();
                SqlConnection conPreg = new SqlConnection(strdbPreg);
                conPreg.Open();
                conYes = true;
                conPreg.Close();

            }
            catch (Exception ex)
            {
                conYes = false;
                fslog(ex);
                listBox1.Items.Add("连接数据库失败......");
                Thread.Sleep(60000);
            }

        }

9，尝试删除目标数据库