passing value in selection formula

Can somebody give me an idea how to send a parameter through a selection formula and then displaying the value on screen or parsing some information based on that value. For example if (parameter = 1) then make some of the fields invisible.

thanks

Parameters and the SelectionFormula are two separate entities. If I understand what you want correctly you will not be using the SelectionFormula but the Parameters collection.

First what version of Crystal do you have and what method are you using to interface with VB (I am assuming you want to do this in VB).