I have a multi value parameter in my SSRS Report. I want to find out whether (Select All) is checked in that parameter.
In other words, whether all the values in the parameter are checked or only some values are checked.
Is it possible?
I am able to find out number of selected values through Parameters!Parameter.Count. Is there a way to find out total of items in that parameter?
Your approach sounds good: I would make the options for the parameter come from a dataset.
Then you can use
=COUNTROWS("DataSetName")
to return the total number of options for your parameter and compare this withParameters!*Parameter*.Count
as you suggest.