How to avoid server round trip on click of a drop down for dynamic entry list.

Dear Experts,

     How to avoid server round trip on click of a drop down for dynamic entry list. kindly let me know any way available to load the values of the dynamic list at the begining itself (On startup).

     I have used a vc service component to execute the select query and giving the result to an DAT OUT port and using it in the creation of dynamic entry list for drop downs.

     Thanks in advance

     Naresh Kota.