Is there a way in ASP.NET to have a tree like dropdownlist. See example below. The dropdown list control could have data like -
But then when the user clicks on 'Drinks', it should then show -
The above data lives in the database, so also looking for suggestions for data retrieval - do we call a stored proc every time (like when you click 'Drinks' or 'Snacks') . Am using AJAX,/VS2008 so preferably any solution with code would help. Thanks.