方法如下：

	在窗体的Load事件注册滚动事件，并增加对应的方法

	 

	复制代码 代码如下:

	

	private void FormSample_Load(object sender, EventArgs e)

	        {

	

	            //注册事件

	            this.MouseWheel += new MouseEventHandler(FormSample_MouseWheel);

	        }
	

		 
	

		        /// <summary>

		        /// 滚动方法

		        /// </summary>

		        /// <param name="sender"></param>

		        /// <param name="e"></param>

		        void FormSample_MouseWheel(object sender, MouseEventArgs e)

		        {

		            //获取光标位置

		            Point mousePoint = new Point(e.X,e.Y);

		            //换算成相对本窗体的位置

		            mousePoint.Offset(this.Location.X, this.Location.Y);      

		            //判断是否在panel内

		            if (pnlDownload.RectangleToScreen(

		              pnlDownload.DisplayRectangle).Contains(mousePoint))

		            {

		                //滚动

		                pnlDownload.AutoScrollPosition = new Point(

		, pnlDownload.VerticalScroll.Value - e.Delta);

		            }

		        }