create a selection screen dynamically

Hi all,

I need to create a selection screen dynamically from an excel sheet which i get.

The selection screen can contain elents such as select-options, parameters, radio buttons and check boxes.

the excel sheet looks like this:

text name ref_table ref_name type mandatory default

plant mara marc S M

checkbox cb c X

type refers to

s- select option

p- parameter

c- check box

r -radio button

please help