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Hi,

While ASP.NET does not offer charting & graphing out of the box, there are a number of third party free & commercial components that you can use. These components can be grouped into 3 types, based on technology:
1. Flash based charting components – i.e., that use Adobe Flash to generate charts, mostly with animation and lots of interactivity. They’ve the advantage of not consuming any server resources for chart generation, are good to look at and are very interactive.
2. Image based charting components – Server side components which generate images. The conventional way.
3. JavaScript charting libraries, that again generate charts on client side using JavaScript. The advantage is interactivity and less server resource consumption. But major disadvantage is cross browser compatibility.

Listed below are a few components under each of these resources:

Flash based charting:
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FusionCharts v3 – http://www.fusioncharts.com – Lots of chart types, interactivity, and affordable pricing. Comes with source code.

FusionCharts Free – http://www.fusioncharts.com/free – Free flash charting library, though not as advanced as FusionCharts v3.

Open Flash Chart – http://teethgrinder.co.uk/open-flash-chart/ – Free and open source flash charting library.

Image based components (All commercial)
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Dundas – http://www.dundas.com
ChartFx – http://www.chartfx.com
DotNetCharting – http://www.dotnetcharting.com
Nevron – http://www.nevron.com

The free image based libraries do not generate that good looking graphs.

JavaScript based charting
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Plotkit – http://www.liquidx.net/plotkit/
Emprise JavaScript charting – http://www.ejschart.com/

Hope this helps.