How to make "Can Grow" conditional on another field>

[boardburner]

The simplicity of this is killing me, i am not sure if I am missing something here or not.
I have a report of part numbers (field 1) and their descriptions (field 2)using crystal 2013.
If the part number revision is ["Obsolete"= true] I only want the first/single line of its description to show.
If the part number is ["Obsolete" = False] can grow to unlimited.
How will "Can Grow" be toggled based on the conditional of another report field?

Thanks in advanced

 

[LaurieHamlin]

Right click on the field that can grow. Click on Format. In the Common tab find Can Grow on the left. Follow over to the right to the X+2 and click on it. Adapt this code and paste it in there.
If "Obsolete"= true Then
False
Else
True

That tells it not to grow if the part is obsolete.
I hope that helps.