I add border to graph's data point style but it doesn't work. Background color and other is fine but this is not. How to fix?

Hi Grzegorz,

This can happen when the Data Point MarkerType doesn't support the border element. For details on how to Format Data Points see the Format Graph Series Data Points documentation.

If the issue persists following review of the documentation, I will need to see the Report Designer file and ask to attach it to this thread.

Please let me know if you need any additional information. Thank you for using the Telerik Reporting Forums. 

Regards,

Eric R | Technical Support Engineer
Progress Telerik