Free Controls for Charts and Graphs
Gauges, Bar Graphs, Pie Charts, you name it. Ever developer needs to output
a graphical depiction of data at some time, and there's no point in recreating the
wheel. Use one of these free controls as a starting point to save time and
money.
My
Bar Graphs to Go article showcases a good starting point for
creating a simple, extremely lightweight graphing control. It uses pure HTML
and relies on no images, Flash, or other potentially sluggish chokepoints.
Not only is the source code free, but I've written an entire article about it to
help you understand it deeply.
http://SteveOrr.net/articles/BarGraphs.aspx
ZedGraph is a free charting library that is both feature rich and
easy to use. Its C# codebase can output a variety of different chart types.
Download this open source library now to discover first hand what it has to offer.
http://zedgraph.org/
Carlos Aguilar Mares has done it again. Another top notch control under his
belt in the form of
WebChart. This free control can output
8 different kinds of reasonably attractive charts. It features first rate
Visual Studio designer support.
http://www.carlosag.net/Tools/WebChart/
In case free just doesn't seem to meet your requirements, you may want to look into
these excellent (but not free) 3rd party charting controls:
ChartingControl.Net
Dundas Gauge
.netCharting