As I mentioned in the support ticket that you opened, the demo you linked is using the Q3 2014 Beta release, which introduces some changes in the RadDiagram control (you can check them in the following page: http://www.telerik.com/support/whats-new/aspnet-ajax/release-history/ui-for-asp-net-ajax-q3-2014-beta
). The configuration of the demo is based on these changes, so it is expected that you will encounter problems when using an older version of the controls.
You can check the old configuration of this example in the demos of the official release: http://demos.telerik.com/aspnet-ajax/diagram/examples/overview/defaultcs.aspx#qsf-demo-source
. Note that it is recommended to use the latest version so that you can get the new features of the control.
Please use only one support ticket/ forum thread per scenario so that all the information on the case is in one place and it is easier to track it.
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