Hi, I am working on a project converting a 2 tiered application over to a 

3 tiered application.  One of the many questions I have is what is the 

best way to handle designing the business logic and UI.  An example would 

be, I have an option group with three option buttons.  When the user 

selects the third option button, I want to enable a text box and require 

that the user enters in a value.  But when they select either the first or 

second option button, the text box is not required and is disabled.  With 

so many controls on my forms with this type of logic, how can I design an 

application without congesting up the network?



The plan is to not only convert to a three tiered application, but also 

migrate over to the dot net platform where we want a web front end and a 

windows form front end.



Thanks,



sstewart