Filter by letter

[Paszt]

Does anyone know what it is called when you give the user a list of the letters in the alphabet at the top of a list (datagrid, datalist, ...) that gives them the ability to filter by a letter; like the member list on this site.

I've got this implemented in an application but am not happy with the results and would like to review some tutorials to see how others do it. This application is a web application by the way.

 

[Paszt]

The PagingBulletedList control of the ASP.NET AJAX Control Toolkit provides this functionality and as far as I can see it only works with bulletedLists. I can't find any information on this control.

 

[Paszt]

I knew I'd find a good example, it just took some time.
The Club Web Site Starter Kit has a members list that I can use as a starting point.