want to create a type at runtime

Hi all ,

I am trying to create a type at run time within my scheme by making use of a table loop.

[code]

Report test_data.

data :

llv_imp type table of RSIMP,

gt_imp_par type string occurs 0.

Field-Symbols :

<fs_imp_par> like RSIMP,

<fs_struct> type string.

Form inst_par_types

Changing

lv_imp like llv_imp

lt_imp_par like gt_imp_par.

Data :

lv_str(72) type c ,

lv_line type I ,

lv_delim type C value ',' .

Describe table lv_imp lines lv_line.

Loop at lv_imp assigning <fs_imp_par>.

if sy-tabix = lv_line.

lv_delim = '.'.

endif.

if <fs_imp_par>-default is not initial.

concatenate <fs_imp_par>-parameter 'TYPE' <fs_imp_par>-typ

'VALUE' <fs_imp_par>-default lv_delim into

lv_str SEPARATED BY space.

else.

concatenate <fs_imp_par>-parameter 'TYPE' <fs_imp_par>-typ

lv_delim into lv_str SEPARATED BY space.

endif.

append lv_str to lt_imp_par.

clear lv_str.

endloop.

Types :

Begin of l_tabname ,

<b><i>{T$lt_imp_par$$$&lt_imp_par&$$}</i></b>

End of l_tabname.

EndForm.

[/code]

But when i instantiate this scheme it dumps as the highlighted line creates 2 different definitions of same variable lt_imp_par (1 as var & another one as table).

What shall I do to get the solution?