Hi Salvaltore
You can post questions related to Essential Grid for ASP.NET
here.
There is a new property in the style object called
CSSStyle where the user can just specify the corresponding style name in css file for any style object (row header, col header, etc). This feature is part of the 3.3 version of Essential Grid for ASP.NET and is demonstrated in the CssStyles sample.
As I mentioned in another posting, we are close to having a Release Candidate out and I will update you as soon as it becomes available for download.
Regards
Arun