ASP.NET Chart StripLine在GridLine上

我有一个Chart控件,包含一些列和GridLines.我想在图表上的特定位置添加一个红色StripLine,以显示这是可接受的级别(或其他).

问题是带状线没有显示,因为网格线正在隐藏它！带状线与网格线的宽度仅为1个点.

有没有办法让我可以在网格线上绘制带状线,而不是在它下面？

谢谢

添加以下代码以查看y轴上5和9.5位置的带状线.我相信它会奏效

// Instantiate new strip line
    StripLine stripLine1 = new StripLine();
    stripLine1.StripWidth = 0;
    stripLine1.BorderColor = System.Drawing.Color.RoyalBlue;
    stripLine1.BorderWidth = 3;
    stripLine1.Interval = 5;

    // Consider adding transparency so that the strip lines are lighter
    stripLine1.BackColor = System.Drawing.Color.RosyBrown;

    stripLine1.BackSecondaryColor = System.Drawing.Color.Purple;
    stripLine1.BackGradientStyle = GradientStyle.LeftRight;

    // Add the strip line to the chart
    Chartname.ChartAreas[0].AxisY.StripLines.Add(stripLine1);

    StripLine stripLine2 = new StripLine();
    stripLine2.StripWidth = 0;
    stripLine2.BorderColor = System.Drawing.Color.RoyalBlue;
    stripLine2.BorderWidth = 3;
    stripLine2.Interval = 9.5;

    // Consider adding transparency so that the strip lines are lighter
    stripLine2.BackColor = System.Drawing.Color.RosyBrown;

    stripLine2.BackSecondaryColor = System.Drawing.Color.Purple;
    stripLine2.BackGradientStyle = GradientStyle.LeftRight;

    // Add the strip line to the chart
    Chartname.ChartAreas[0].AxisY.StripLines.Add(stripLine2);