如何使StripLine出现在图表数据点上方 [英] How to make StripLine appear over chart data points

问题描述

我有一个Microsoft图表控件，并且使用了StripLine. 如何使StripLine出现在数据点的前面.目前，带状线隐藏在某些数据后面. 该图表是一个面积图.

I have a microsoft chart control and I use a StripLine. How do I make the StripLine appear in front of the data points. Currently the strip line is hidden behind some data. The chart is an area chart.

推荐答案

据我所知，StripLine将始终被绘制在数据点后面.解决这个问题的一种方法是使用PostPaint事件处理程序并自己绘制矩形.

As far as I'm aware StripLine will always be drawn behind the data points. One way to fudge this howerver would be to use a PostPaint event handler and draw the rectangle yourself.

在处理程序内部，您可以按如下方式获取绘图坐标

inside the handler your can get drawing coordinates as follows

private void chart_PostPaint(object sender, ChartPaintEventArgs e)
{
  ChartArea a = sender as ChartArea;
  if (a != null)
  {
    Gaphics g = e.ChartGrpahics.Graphics;
    RectangleF r = e.ChartGraphics.GetAbsoluteRectangle(new RectangleF(0,0,10,50)); // the rect you need
    g.FillRectangle(new Brushes.Yellow, r);
  }
}

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