If there are not too many parameter options, you can hardcode the description in a formula like the following:
numbervar i;
numbervar j := ubound({?parm});
stringvar desc;
for i := 1 to j do(
desc := desc +
(
if {?parm} = "value1" then
"description1" else
if {?Parm = "value2" then
"description2" else //etc.
)
+ ", ");
left(desc, len(desc)-2);
If you have many values and your description field appears in a table, then the simplest approach is to use a subreport where you display the description field. Link the subreport to the main report using the parameter field in the main report linked to the value in the subreport.
-LB