Member Avatar for kapil.tandon

Hi everyone,

I stared creating an application in ASP.NET in which which i used the dundas chart control.The problem is that when i m executing the application , it is not showing the chart which i selected to display.It shows only the blank space. I dont knw what is the problem.and on the blank space message is written"Dundas chart Asp.Net Professional Edtion.Evaluation mode enabled for tesing purpose only" do we need to buy this component or what should be enables to make the chart visible

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As reported, the blank area that reads something like "Dundas chart Asp.Net Professional Edition. Evaluation mode enabled for testing purpose only" is the control running in evaluation mode — Dundas ships a timed trial that overlays a watermark and will not behave as a licensed production control. A retail license invalidates the evaluation copy and removes the watermark. (Dundas licensing docs).

There are two common routes to resolve this. If a commercial Dundas license is available, install/activate the retail license on the server (or upload the license text to the product as documented) and rebuild/deploy so the evaluation is invalidated. If the project uses a compiled runtime license resource, ensure the project contains the appropriate licenses.licx entry (or that App_Licenses.dll has been rebuilt for Web Site projects) so the license gets embedded at build time; the .NET license compiler and Visual Studio build process are where this resource is produced. (how licences.licx works, ).

If purchasing Dundas is not desired, the Dundas charting technology was acquired by Microsoft and released as the free Microsoft Chart Controls for .NET (bundled with .NET 3.5 / VS 2008 tooling); migrating to that built‑in chart control is a common, license-free alternative. (’s suggestion to try a different Dundas build like 3.5 may help for compatibility, but it will still show the evaluation watermark unless a retail license is applied). (Microsoft chart controls announcement and samples).

Quick actionable checklist:

  • Confirm the exact watermark message (evaluation mode = trial). (Dundas licensing docs).
  • If licensed: install/activate the retail license on the server and rebuild the app so the license resource replaces the trial.
  • If building on a build server, either install Dundas on the build machine or generate/embed the .licenses resource so the runtime license is present (see lc.exe notes above).
  • If not licensing Dundas: evaluate Microsoft Chart Controls and port the chart code / bindings to System.Web.UI.DataVisualization.Charting and use the sample environment linked above.

These steps address the common causes (trial watermark or missing embedded license) that produce the blank chart area seen in this thread.

Member Avatar for platinum8

I would say try undas Chart 3.5 it is the latest version of Dundas' Charting component for ASP.NET. It takes 5 minutes for installation with no errors and problems.

Member Avatar for kapil.tandon

thank you very much for this kind of reply

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