Hi guys.!
Thank u very much for the you immediate reply. I'll consider ur suggestions.
Pls see the attachment Hope i've explained the issue better this time.

I've the problem in proposing an interface and programming too...

I want to let the user to assign a formula for the "New charge" ina grid. That depends on the value types on another grid.

The "number of value items" and the "actual values" for the New Charge depend on is known only at runtime - (By the user)

I was planning to do this by introducing "Formulas". But think formula will suit only for
numeric values. Here the charge not only depends on numeric.

And I'm not sure the interface is designed properly.

Can u assist how this can be accomplished.....

Thanks in advance
Regards
BanG