how to develop report to display file names under url directry.

Hi abapers,

i got one requirement that develop one report .

in selection screen : if we give url directry and clik on excute it will display what are file names under url .

ex: in AL11

when we clik on DIRECTORY , in out put it will display file names(if 5 is there display 5 files) under url directory.

please see attachment. hilighed yellow color file name will be displayed in output under input url directory.