Nifty Filter

The Nifty Universal Filter was created in answer to this question on Access World Forums (AWF):- https://www.access-programmers.co.uk/forums/threads/search-form-by-field-yes-no.317953/#post-1768264 - I call it a universal filter because in the process of testing, I tested it against one of the MS "Northwind Database" Tables the "Products Table"... The products table had a checkbox to denote if a product has been discontinued. With a bit of faffing about I managed to get a combo-box setup which could interrogate this checkbox/Boolean field. By accident, I managed to create two distinct combo boxes, combo boxes with different characteristics. I could take advantage of these differences and the combos could be treated by the VBA code in a different manner. This Discovery allowed me to create the two types of combo box, one for returning a chosen value from in the combo and the other for deciding whether to show the Boolean values as "Yes" "No" or "ALL"...