DisplayString in Crystal Report

Question

What if we want to use DisplayString Method in Crystal Report but we want to apply this only on the basis of some parameter value ! ? Like we will pass in parameter whether the use can see the purchase rate or not ! If not then we will print Asterisk instead of actual rate else do nothing !

Answer 1

Assumes a boolean parameter named {?hide}:

If {?hide} Then
    Replace(Space(Len(ToText(CurrentFieldValue,"#"))), " ", "*")
Else
    ToText(CurrentFieldValue)