Need table data to be captured in a field symbol.

Hi,

I need to capture the Table data of a program(SAPLSTXD) into a filed symbol which is called in different program i.e. BTE.

I have written code like below....but does not work.

Data: lines type table of tline,

c_prog type string value '(SAPLSTXD)lines[]'.

field-symbols: <fa> type any table.

assign (c_prog) to <fa>.

if <fa> is assigned.

lines[] = <fa>.

endif.

Please suggest if I am doing wrong. I am not getting data in <fa>. Error says that field symbol is not assigned.

Thanks in advance.