Some time ago, when I had to take care of Oracle Forms, I was annoyed that in Forms you always have to call several procedures for switching on and off. So you have to drop the following lines to show a text field again.
set_item_property('MY_ITEM', visible, property_true); set_item_property('MY_ITEM', enabled, property_true); set_item_property('MY_ITEM', navigable, property_true);
With these you can directly create a variable list of parameters and pass it to a method. This is what a procedure that simply sets all passed properties with a corresponding value would look like:
procedure set_item_properties(p_item in varchar2, p_properties in sys.odcinumberlist, p_property in number) is begin for i in (select m.column_value m_value from table(p_properties) m) loop set_item_property(p_item, i.m_value, p_property); end loop; end;
and the call then just like that:
set_item_properties('MY_ITEM', sys.odcinumberlist(visible, enabled, navigable), property_true);
Cool, right ?