Trying to understand this better... Let's say your column is "Color", and when you update the column in two different records, to say "Blue" and "Green", your dropdown tied to this column now shows "Blue" and "Green" as choices.
Also, if the user updates those two records to both be "Blue" and "Blue", you want the associated dropdown to list "Blue" twice?
When you say "One of the columns in the SQL table ... is tied to a parameter" is it bound to the column? If so, consider creating a parameter that queries the column in your table directly to get the full contents.
