If you don't display column A, how will the user select a value in Column A?
A conditional value list can list data from Fields in B and C without displaying A. But you need some method, there are several, for specifying the value in A.
Thanks. Column A is just used to provide the custom order of the fields as they can't be alphabetically arranged. Ideally, I don't want the user to select or be displayed.
Another idea was to use cascading fields while showing Column A and Column B. Column B has a one to many relationship with Column C...
I don't have a clear enough picture of what you are doing to make any further posts here. I will observe, however, that values in a value list--not sure that this is really a value list--are listed in ascending order by the value in either the primary or secondary field depending on what options where selected in Manage | Value lists.