I have designed a report that has Tablix called By Resource that displays data by a resource code and a second tablix called By Start Date that displays data by a start date.
I've added a parameter called ReportSelection and gave it available values of:
By Resource
By Start Date
In the By Resource tablix, I selected Show or hide based on an expression and then set expression for hidden formula is: =IIF(Parameters!ReportSelection.Value="By Resource",TRUE,FALSE)
However, when I run the report and select By Resource, the By Resource tablix doesn't show up. The By Start Date tablix appears instead.