在MenuStrip1控件中，在Form1窗体没有添加timer1控件
运行RunMenu_Click
        private void RunMenu_Click(object sender, EventArgs e)
        {
            //到达时间的时候执行事件,周期为10秒；
            System.Timers.Timer timer1 = new System.Timers.Timer(10 * 1000);
            timer1.Elapsed += new System.Timers.ElapsedEventHandler(timer1_Tick);
            timer1.AutoReset = true;  //设置一直执行(true)
            timer1.Enabled = true;    //是否执行System.Timers.Timer.Elapsed事件

            RunMenu.Enabled = false;
            StopMenu.Enabled = true;
        }
       private void timer1_Tick(object sender, EventArgs e)
       {
            //是连接sql，插入数据操作
       }
停止StopMenu_Click，停止timer应该怎么实现呢
        private void StopMenu_Click(object sender, EventArgs e)
        {
            ？？timer1 .Enabled = false; ？？吗，timer1没有此参数。
            RunMenu.Enabled = true;
            StopMenu.Enabled = false;
        }
请教，本人还是菜鸟