vertical scrolling issues in table control.

[raffinkira]

Followed are two forms of type definition.

It seems that they have the same meanings.

A:

*********************************

TYPES:

  BEGIN OF ty_sflight.

        INCLUDE STRUCTURE sflight.

TYPES:  mark LIKE rsdxx-mark,

  END OF ty_sflight.

*********************************

B:

*********************************

TYPES:

BEGIN OF ty_sflight,

  CARRID LIKE sflight-CARRID,

  CONNID LIKE sflight-CONNID,

  FLDATE LIKE sflight-FLDATE,

  …………

  mark LIKE rsdxx-mark,

END OF ty_sflight.

*********************************

But when I use "DESCRIBE TABLE it_sflight LINES tb_cl01-lines." to enable a vertical scrolling function,

definition form A crashed down in the runtime while B worked well.

Moreover, one of my programs does have vertical scrolling without "DESCRIBE TABLE xxx". Why?

Could anybody give me some ideas?Thanks.

[Former Member]

hi,

Add this code in PBO

  DESCRIBE TABLE it_final LINES lv_lines.

  tc-lines =   lv_lines + 20.

[raffinkira]

could you explain that?

[Former Member]

When u press page down this code is executed and it add's 20 lines to table control.So scrolling is available.