Open Source Alternative to ASP.NET Commercial Uber-Grids

Question

The company I work for uses an ASP.NET grid component from a commercial vendor, but won't upgrade the buggy old version we have to a newer version because of cost. Are there open-source alternatives to these Uber-Grids that we could take advantage of?

I'm specifically looking for hierarchical drill-down capabilities. I know there are some Javascript library plugins (stuff for jquery UI, etc) that could be used, but I would prefer a server-side control given the current coding conventions at my employer (server-side controls whenever possible, javascript when nothing else will work :-P )

Answer 1

Grid Wrapper Control using ExtJS http://www.codeplex.com/ExtJsExtenderControl

Check out the DEMO page for the grouping feature, not sure how many levels you can go in though.

Answer 2

Try this opensource project that extends ASP.NET GridView : http://johnsobrepena.blogspot.com/2010/01/coolgridview-new-release-resizable.html

1. Fixed column header, footer and pager
2. Scrollable content
3. User-resizeable column widths (new!)
4. Maintains scroll position and column widths after a postback or callback (new!)