c# - Dynamically creating charts -

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i trying dynamically create chart each drive in computer, inside form.

each chart should pie chart contains amount of free space (colored green) , used space(colored red) in gbs.

but when run following code thing see blank rectangles titles of "c:\", "d:\" , on.

here code :

    public static void drawcharts()     {         chart[] charts = new chart[driveinfo.getdrives().length];         driveinfo[] drives = driveinfo.getdrives();         (int = 0; < drives.length; i++)         {             charts[i] = new chart();             charts[i].palette = chartcolorpalette.brightpastel;             charts[i].titles.add(drives[i].name);             charts[i].series.add("storage");             charts[i].series[0].charttype = seriescharttype.pie;             charts[i].location = new system.drawing.point(20 + * 231, 30);             charts[i].size = new system.drawing.size(230, 300);             datapoint d = new datapoint();             d.xvalue = 1;             double[] p = { (double)drives[i].totalfreespace / 1000000000 };             d.yvalues = p;             d.color = system.drawing.color.yellowgreen;             d.label = "free space";             charts[i].series[0].points.add(d);             d.label = "used space";             d.xvalue = 2;             double[] = { (double)((drives[i].totalsize - drives[i].totalfreespace) / 1000000000) };             d.yvalues = a;             d.color = system.drawing.color.red;             charts[i].series[0].points.add(d);             form1.tabs.tabpages[1].controls.add(charts[i]);             charts[i].invalidate();         }     }

thanks.

you there.

but basic thing need add dynamically created chart..:

charts[i] = new chart();

..is chartarea:

charts[i].chartareas.add("ca1"); // pick name!

without no series can display..

use style axis tickmarks, gridlines or labels or set minima , maxima , intervals. well, @ least other charttypes; pies don't need of anyway..

note can have several chartareas in 1 chart.

also note still display nothing until @ least 1 series has @ least 1 datapoint..


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