Really need help with an insert form

Question

I attempted to implement a cascading select list (via sergios blog); which was helpful. I created an office_id field as a select list with submit in order to populate another select list with the appropriate list of salespeople. But now the rest of my fields on the page are reset and I can't successfully add a record. I am wondering if I should be using a select list with submit or redirect or perhaps a computation for the page to achieve the same behavior but that doesn't submit the page until all fields are completed. Even if I fill out the office_id (the submit occurs)> I pick my salesperson then proceed to fill out the rest of the fields the row will not save when clicking the create button.

Answer 1

select
from table(cast(V_UserInfoin as T_UserInfo));