How to set Filter default display value as selected value

Hi All,

.

   I have three filters(Plant,material and year). i am getting the data on charts  based on filter default values

in plant filter on select i have given code bellow

DS_1.setFilter("Z_PPCD",PLANT.getSelectedValue());

MATERIAL.setItems(DS_1.getMemberList("Z_MATPCD", MemberPresentation.INTERNAL_KEY, MemberDisplay.TEXT, 50));

in material filter,

DS_1.setFilter("Z_MATPCD",MATERIAL.getSelectedValue());

YEAR.setItems(DS_1.getMemberList("0CALYEAR", MemberPresentation.INTERNAL_KEY, MemberDisplay.TEXT, 50));

in year filter,

DS_1.setFilter("0CALYEAR", YEAR.getSelectedValue());

when i run the report i am getting the all the data from data base