customizable Volume of a solid body

[ag]

hello,

i want to make an ipart of a container with as customizable parameters (the Diameter and the Volume of one of the solid bodies). 

i used the solution of this discusion.

http://forums.autodesk.com/t5/Autodesk-Inventor/Body-Volume-to-be-assigned-to-a-parameter/m-p/363471...

here comes the problem:

when i was changing the volume parameter, i recieved an error that this property was read-only

is it possible te use the volume calculation from inventor the calculate back to the diameter or height?

,and also for a solid body?

if so, what do i need to do?

i am using inventor 2013 (basic)

thanks in advance

[ag]

maybe it is not clear what i want to accomplish.

we enginneer containers for  onboard on Supply vessels.

very often the custumer gives the volume of the container. 

is it possible to make an ipart with the volume as one of the given parameters.

i want inventor te do the reverse calculation,(from volume to diameter or height)

or do i need to make a rule that is doing the calculation?