C# Chart 控件的一些操作

网上都没有很好的解决方案。MSDN是个好东西，我基本上都是在上面找到解答的。
// 使图表支持在X和Y轴上放大和缩小
chart1.ChartAreas[0].CursorX.IsUserSelectionEnabled = true;
chart1.ChartAreas[0].CursorY.IsUserSelectionEnabled = true;
 // 重置图表缩放
chart1.ChartAreas[0].AxisX.ScaleView.ZoomReset(0);
chart1.ChartAreas[0].AxisY.ScaleView.ZoomReset(0);
        /// <summary>
        /// 选择图表上数据点的值
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void chart1_MouseClick(object sender, MouseEventArgs e)
        {
            var pos = e.Location;
           
            var results = chart1.HitTest(pos.X, pos.Y, false,
                                         ChartElementType.DataPoint);
            foreach (var result in results)
            {
                if (result.ChartElementType == ChartElementType.DataPoint)
                {
                    //var xVal = result.ChartArea.AxisX.PixelPositionToValue(pos.X);
                    //var yVal = result.ChartArea.AxisY.PixelPositionToValue(pos.Y);
                    var xVal = result.PointIndex;
                    var yVal = series.Points[xVal].YValues[0];
                    label1.Text = string.Format("{0},{1}",xVal,yVal);
                }
            }
        }