ChartControl - 如何在 X 轴上绘制一条线（x - 固定坐标，y - 无穷大）

Question

我正在开发一个 C# winforms 应用程序，我想在其中绘制 X 轴上的线条，使 X 坐标为固定值，但没有指定 Y 坐标。像这样：

这可以做到吗？

Answer 1

代码如下：

public Series series1 = new Series
    {
        Name = "Series1",
        Color = Color.Black,
        IsVisibleInLegend = false,
        ChartType = SeriesChartType.Line,
        BorderWidth = 0,
        XValueType = ChartValueType.Double,
        YValueType = ChartValueType.Double
    };

    public StripLine startPositionLine = new StripLine
    {
        BorderColor = Color.Red,
        BorderWidth = 2,
        IntervalOffset = 7
    };

    public StripLine endPositionLine = new StripLine
    {
        BorderColor = Color.Blue,
        BorderWidth = 2,
        IntervalOffset = 11
    };

    private void Form1_Load(object sender, EventArgs e)
    {
        chart1.Series.Clear();

        chart1.ChartAreas[0].AxisX.Minimum = 0;
        chart1.ChartAreas[0].AxisX.Interval = 1;

        //Apparently some series with some points have to be present on the chart before the striplines get displayed
        series1.Points.AddXY(0, 0);
        series1.Points.AddXY(10, 0);

        chart1.Series.Add(series1);

        chart1.ChartAreas[0].AxisX.StripLines.Add(startPositionLine);
        chart1.ChartAreas[0].AxisX.StripLines.Add(endPositionLine);

        chart1.Invalidate();
    }

下面是带状线的绘制方式：

我需要检查的一件事是在绘制带状线之前是否需要先绘制一个系列。

ChartControl - 如何在 X 轴上绘制一条线（x - 固定坐标，y - 无穷大）

ChartControl - How to plot a line on X Axis (x - fixed coordinate, y - infinity)

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