Dynamic loading multiple pie charts

Jun 2, 2008
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How would I go about loading more than one pie chart by reading a database.

I know it would be some kind of loop to get the data but I have no idea how to render them?

http://www.carlosag.net/Tools/...art/sampleDataSet.aspx

I'm using this..

The part that would need to be looped is this but it's ASP.NET so I don't know what to do.

<web:chartcontrol runat="server" id="ChartControl1"
height="400" width="350" gridlines="none" legend-position="Bottom" />

EDIT:

Would I instead just capture the URL image links then display?
 

Pacemaker

Golden Member
Jul 13, 2001
1,184
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I have used this exact control before. Below is how to make a pie chart in code. If you want to do multiples just do the the part through the add multiple times, but that would add it to the same control.


Code: (obviously this would have to be changed to fit your purposes, but it's an example)

WebChart.PieChart Chart = new WebChart.PieChart();
Chart.DataSource = DV; //DV is a dataview
Chart.DataXValueField = "Title";
Chart.DataYValueField = "Value";
Chart.DataLabels.Visible = true;
Chart.Explosion = 4;
Chart.Colors = new System.Drawing.Color[] { System.Drawing.Color.Crimson, System.Drawing.Color.DarkBlue, System.Drawing.Color.Green };

Chart.DataBind();


ChartControl1.Charts.Add(Chart);


ChartControl1.Legend.Position = WebChart.LegendPosition.Bottom;
ChartControl1.Legend.Width = 50;
ChartControl1.Border.Color = System.Drawing.Color.Black;
ChartControl1.BorderWidth = 1;
ChartControl1.BorderStyle = BorderStyle.Solid;
ChartControl1.RedrawChart();



If you wanted multiple controls I suppose you could put a repeater around the chart control and do it that way (although i've never done that and I'm not sure if it would work).