What good components and packages are available for generating HTML reports based on report definitions? I have a truly horrific project where each report is a dedicated aspx page that builds one fantastically big HTML string, which it then assigns to a 'reportBody' Label control.
Standard grids are not a good solution as they provide no grouping capability, but I'm open to buying a grid that is friendly for grouping, printing, and exporting. FYI is one reporting engine option I'll be looking at. What else is there? SSRS may not be an option, as MSSQL may not even be an option.
BTW, this is an ASP.NET web site.