Runtime Error in ALV Tree Output

[Former Member]

Dear All, I am trying to create a ALV Tree using Class cl_gui_alv_tree. The Report Shows the Output with the first Node but when i try to expand it is dumping with a runtime error GETWA_NOT_ASSIGNED in class CL_ALV_TREE_BASE and method SET_ITEMS_FOR_COLUMN. The Reason being the data which was copied in the initial node display to mt_outtab is getting refreshed.

Can any one of you help me the reason for the table getting refreshed. Do i need to pass any data.

I am doing the following steps.

1. Create Container,

2. Create Tree Class object

3. Generate the Field Catalog.

4. Set table for first display " With empty internal table

5. Generate the Hierarchy

6. Call the Method Frontend Update.

Let me know if i had missed any steps in the process.

Thank you,

Regards,

Swaroop Patri

[Former Member]

hi ,

u need to check the relation key field values.

regards

Prabhu

[former_member198445]

Hi Swaroop,

I am facing a similar issue. how did you resolve this?

Regards,

Amith

Edited by: Amith Menezes on May 23, 2011 9:49 AM

[bayram_dabak]

One reason for getting this error is using local defined tables for it_outtab parameter in the below code:

To get rid of the dump, define two distinct output tables globally: one is an empty table which you will pass to the below method, other one is your real output table whose size increases dependently.

CALL METHOD go_tree->set_table_for_first_display

EXPORTING

is_hierarchy_header = ls_hier_header

CHANGING

it_outtab = gt_data_e "Empty table

it_fieldcatalog = gt_fcat_tree.