Drop down list box filter in table view in bsp

Hi all,

   I am using Table view filter for particular columns in table view in BSP Application. for on of the Column i am using drop down filter  to search for the values. While creating the values in the drop down list box i need some values selected by defaultin the drop down list box filter  based on some conditions.Please help me out.
   Thanks in Advance.

Regards,

Lakshmi.