问题
When I set a default value formula for a date parameter in SSRS, such as:
=CDate(”01/” & Month(Now) & “/” & Year(Now))
or even:
=Now
the date parameter control becomes disabled with nothing in it. Does anyone know what simple thing (I am sure) I am doing wrong?
回答1:
After playing some more, I realized that the date controls became enabled when I picked a value from a preceding dropdown parameter that did not have a default. Apparently, controls after non-default parameters are disabled until you pick something, so order matters.
From an MDSN article:
"parameter order is important when you want to show users the default value for one parameter before they choose values for other parameters"
http://msdn.microsoft.com/en-us/library/cc281392.aspx
回答2:
Now is a function and you must use like =Now()
maybe it is your problem.
来源：https://stackoverflow.com/questions/2541456/ssrs-date-default-with-formula-disables-parameter