There are two primitive Data Class components in Visual LANSA that you can use in property sheets: PRIM_ALPH and PRIM_NMBR. These classes are generic definitions for strings and numbers. In addition, they contain a Picklist property which you can use to display a drop-down of values for a property sheet item, called a picklist.
This is what a picklist looks like:
To see what these primitive data classes contain base a data class called #OPTIONSA on #PRIM_ALPH:
DEFINE_COM class(#PRIM_ALPH) name(#OPTIONSA)
Now display the Details tab for the #OPTIONSA data class:
Notice that the data class component contains a Picklist property. This property is used to associate a picklist with a property sheet entry.