Letter/Alphanumeric Based Paging in ASP.NET is a tutorial through which you can learn how to add letter-based paging in datagrid control using the repeater control of ASP.NET. The author explains the users, how to add the datagrid control to the aspx pages, display the alpabetic letters as the link buttons using the repeater control and show the list on the datagrid control based on the letters clicked by binding the database table to the datasource property of the repeater control.