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);

}

}