C# 从图形中删除网格线

我正在一页上打印一张图表。我可以画和修改图形，但它有一些网格线，不能改变或删除。以下是代码和屏幕截图：

        Chart chart2 = new Chart();
        ChartArea area2 = new ChartArea();

        chart2.ChartAreas.Add(area2);
        Series s2 = new Series();
        s2.Name = "S2";
        s2.ChartType = SeriesChartType.Line;
        s2.XValueType = ChartValueType.Double;
        s2.YValueType = ChartValueType.Double;
        chart2.Series.Add(s2);
        chart2.Series["S2"].Points.DataBindXY(x2, y2);


        Rectangle myRec1 = new System.Drawing.Rectangle(30,25,100,100);
        // draw!
        chart2.Printing.PrintPaint(e.Graphics, myRec1);

图片：

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我尝试了series的几乎所有属性，但我认为这不是原因。

将以下语句中合适的语句添加到代码中

area2.AxisX.MajorGrid.Enabled  = False
area2.AxisX2.MajorGrid.Enabled = False
area2.AxisY.MajorGrid.Enabled  = False
area2.AxisY2.MajorGrid.Enabled = False
area2.AxisX.MinorGrid.Enabled  = False
area2.AxisX2.MinorGrid.Enabled = False
area2.AxisY.MinorGrid.Enabled  = False
area2.AxisY2.MinorGrid.Enabled = False