Re: Block certain selections when they wouldn't make sense?
thanks a lot! That's pretty much what I'm looking for - only in my instance, the selection_fields would be dependent on a variable that's actually governing the chart (a binary variable, being 1 or -1 - that makes it easier for buttons)
Can I upgrade that a little so that
- there are two fields for selection when the variable has the value, say, 1
- there is only one (out of those two) field for selection when it has the other value (-1)