I've just released a new version of my DataPanel on GotDotNet. Anyone who have ever made a ASP.NET dataentry web form with a lot of textboxes for editing data in a lot of columns know it's a tiresome task. You have to set all the Text properties on load with the column values, and put updated values back on update. Try doing this in 20 fields in 10 dataentry forms.
Yes, you can use other tools to automate it, but I missed the feel of the Editmode of the datagrid when editing a row, only without the datagrid. If you recognize this scenario, have a look at my sample. Full source is included, and I also took the time to add a ReadMe.doc with several screenshots and a walkthrough.