I want to provide a parameter allowing users to select a time period (1 Day, 7 Day, 1 Month, etc). When the period is selected, I need it to add a date to a Start Date & End Date Parameters. I also need to allow the Start & End Dates to be manually adjusted.
I can get this to work by calculating the Default Value, but the problem is that once the Start & End Date Parameters have a date in them, selecting a new Period does not override the Start & End Parameter dates. It's a one time thing. If I add the same date calculation routine to the Available values, it changes the dates every time a new period is selected BUT it doesn't allow my users to manually adjust the dates since it makes this date the only available date they can choose.
Is there some way to make this work allowing users to change the Period multiple times & still allow them to alter the Start & End Date Parameters manually?