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Someone requested a quick snippet of how to get ZedGraph to work so here we go.

First off I use these 2 links for documentation The main wiki and the SourceForge project forum.

1. Setup: Make sure you have the ZedGraph.dll and ZedGraph.Web.dll assemblies in your bin directory.
2. Create a writeable directory in your web project for temp image creation, I called mine ~/Data/Charts
3. Add a new .aspx page with and register the tagprefix for the web control by adding this line

   <%@ Register TagPrefix="zgw" Namespace="ZedGraph.Web" Assembly="ZedGraph.Web" %>

4. Drop now drop a graph control on the page and make sure to use the same tag prefix. It should look something like  this

   <zgw:ZEDGRAPHWEB id="zgChart" runat="server" Width="700" Height="400" RenderMode="RawImage" IsImageMap="false" RenderedImagePath="~/data/charts/" OnRenderGraph="zgChart_RenderGraph" />

5. On Render Graph  is where the magic happens. In your Code Behind Make sure you wire up your event like so: protected void zgChart_RenderGraph(Graphics g, MasterPane masterPane)

   {

   // Get the GraphPane so we can work with it

   GraphPane myPane = masterPane[0];

   // Create a point pair list, there are many ways to populate the data besides this too.

   PointPairList somePoints = new PointPairList();

   // Add some points

   somePoints.Add(0, 1);

   somePoints.Add(1, 2);

   somePoints.Add(2, 4);

   somePoints.Add(3, 3);

   // add the points to a curve on your pane.

   BarItem myBar = myPane.AddBar("Series Title", somePoints, Color.Red);

   // Finish up by telling the master pane to generate the axis.

   masterPane.AxisChange(g);

   }

6. Save and Run that should be it.