If you try now the j Query validation should accept the dd/mm/yyyy format and it should save to the database correctly. Validation groups allow the developer to set groups for each validation control and button.First you can start a new Web Application in Visual Studio 2008. This form is going to contain a Drop Down List, Range Validator, and Button control.There have been two previous articles on 4Guys that examined how to create a popup calendar control from the ground up. NET AJAX framework's Popup Control Extender to display the Calendar control in Creating an AJAX-Enabled Calendar Control.In Populating Form Inputs Using the Calendar Control, James Avery showed how to have a Calendar appear in a popup window opened via Java Script's function. There are also a number of third-party Web control vendors that ship popup Calendar controls, which you can peruse at the Date, Time, and Calendar section of the ASP. I recently worked on a project that used the free RJS Pop Calendar control and was impressed with its features and ease of use.