Hi Zhang,
Call the REFRESH_TABLE_DISPLAY method in PBO with respect to your grids objects.
Code Should be.
PBO.
your current coding to display the information through set_table_for_first_display.
at the last of PBO.
call the grid->REFRESH_TABLE_DISPLAY
exporting
I_SOFT_REFRESH = 'X'.
PAI
PAI Coding.
regards.
Praveer.