如何使用Microsoft Visual Studio在C＃中设置线标记？

Question

I would like to set different markers to the various series plotted in my chart. How do I go about doing this since the various series are plotted only when the user selects that particular option. I currently have 7 series that can be plotted.

  for (int i = 0; i <= loop - 1; i++) {
 Chart1.Series[i].ChartType = System.Web.UI.DataVisualization.Charting.SeriesChartType.Line;
 Chart1.Series[i].BorderWidth = 5; }

Answer 1

Whether it's System.Windows.Forms.DataVisualization.Charting.MarkerStyle or System.Web.UI.DataVisualization.Charting.MarkerStyle you can set it:

1. For each point in your series' DataPointCollection .
2. For the whole Series ( DataPointCustomProperties.MarkerStyle ).

If you are using MarkerStyle.None you can also use a MarkerImage instead of the default predefined markers, same remarks as above, it should work for the whole series or any point. You can even manipulate those values directly with DataPointCustomProperties.SetCustomProperty , or DeleteCustomProperty , like:

dataPoint.SetCustomProperty("MarkerStyle", MarkerStyle.Circle);

or

dataPoint.DeleteCustomProperty("MarkerStyle");

Then, make sure:

1. you have a big enough value for the MarkerSize property so that your points are visible.
2. marker color differs from background
3. chart type supports markers.