Using dropdown and listboxes to enable user selection
Please see the attached file.
The program should allow users to select one or more options from the dropdown boxes. The selected option gets put into the listbox. When the user presses apply filter the items in the list box get sent to the stored procedure.
I want to make the textboxes eg txtfilenamecode invisible or at least disabled. However this causes the program to fail.
Any suggestions? FileCollection.txt