With asp.net in C# what is the best way to get the current pages url query's change

one then redirect? If the url was http://www.thesite.com/?day=1 what is the best way to change the day value then redirect to the same page with the different value?
The reason I would like to change the value and redirect to the same page is the page will send the value to the database to get a list of entry's. The first set of entry's can be selected from a different page then the page may want to get a new list so it will need a different value when it is reloaded. The page will be completely different depending on the value.
 
Back
Top