How to use a grid list?

Use Function Module Display_*LIST. In U'r program .Put all the data that U want to
output in its final format and then pass this internal table to the function module
Two types of grid list .
DISPLAY_GRID_LIST(Version 4.0b)
DISPLAY_BASIC_LIST(Version 4.6b)
Calculate the subtotal etc and save it as a variant ,However while printing it will print
all the enties of the fields