Tanguy,
The CanvasJSDate directory contains the FetchDateFromDatabase.aspx, FetchDateFromDatabase.aspx.cs, Web.config, and Web.Debug.config files.
The FetchDateFromDatabase.aspx.cs will have server-side coding in C#(it will extract the dataPoints from the database) and the ASPX contains the page visualization declaration.
Please add these files in visual studio. Then create the database and connect with it.
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Indranil Deo,
Team CanvasJS
