Dump while using alv structre

[Former Member]

HI ALL,

i working on the with alv tree and i am calling to the following method

with structure SYST (just for test )and the problem is that i try to put my structure

i have a dump ,

i the alv tree i dont dispaly any table just one column with all

the needed data .

my structure have just one column type LVC_VALUE .

what i miss here i want to replace the structrue SYST with my structure?

mo_tree->set_table_for_first_display(
       EXPORTING
         i_structure_name     = 'SYST'
         is_hierarchy_header  = ls_hier_header
         it_toolbar_excluding = mt_function
       CHANGING
         it_outtab            = mt_tree )

Best Regards

Alex

if it help this is the dump

You attempted to access an unassigned field symbol

(data segment "-1").

This error may occur if

- You address a typed field symbol before it has been set with

ASSIGN

- You address a field symbol that pointed to the line of an

internal table that was deleted

- You address a field symbol that was previously reset using

UNASSIGN or that pointed to a local field that no

longer exists

- You address a global function interface, although the

respective function module is not active - that is, is

not in the list of active calls. The list of active calls

can be taken from this short dump.

[Former Member]

Hi,

The structure of it_outtab and i_structure_name should be same if not u need to create a separate fldcatlog.

Hope this hint will solve ur problem. Otherwise u can also find lots of ALV tree example in SCN.

Regards,

Amitava

[Former Member]

Hi!

The parameter, what you give for the i_structure_name and the it_outtab, must have the same structure.

If the it_outtab contains only 1 column, it cannot be the same with SYST structure.

Maybe if you declare it like this:

DATA: mt_tree LIKE STANDARD TABLE OF syst.

However this structure will never make you a tree-like ALV.

Check out the sample programs in SE38, called BCALV_TREE_*

Regards

Tamá