This is for an assignment building a hotel reservation system
Basically I have a list_item, with a variety of elements. I want to be able to select the list_item, choose one of the elements and have it launch an LOV. The user chooses from the list_item (r_type) a value such as "Single with Double Bed". As soon as the user selects this I wanted an LOV to pop up with the available room numbers of that type.
I am using a trigger of WHEN-LIST-CHANGED:
When I try this, and run the form, and try changing the drop down list it gives me FRM-41026: Field does not understand operation.
I've searched google all I can and can't seem to find instructions on linking a list_item to a LOV in this way.
Help appreciated, thanks.