topic Re: Refresh ALV tree after deleting the node. in Application Development and Automation Discussions

Refresh ALV tree after deleting the node.

Former Member — Mon, 14 Sep 2015 14:43:47 GMT

Hi All,

I have a problem with refreshing an ALV tree after deleting a particular node.

I have a delete button at application tool bar which actually gives me a pop up and deletes the selected node on alv tree.

After that, I'm unable to refresh the tree, the page is not getting refreshed after deleting.

I searched sdn and found a way that I can delete the entire tree and rebuild it again by calling the screen. I used 'delete_all_nodes' and called the screen.

But it is not working. tree is nor getting deleted when I checked it in debugging mode but at the output, I see all the nodes are deleted.

Could you please help me with this.

ELSE.

READ TABLE i_pnode INTO w_pnode WITH KEY key_node = l_selected_node.

MOVE w_pnode-zslifnr TO w_zbi_saleshier1-zslifnr.

* CALL SCREEN 0100.

DELETE zbi_saleshier FROM w_zbi_saleshier1.

DELETE i_pnode WHERE key_node = l_selected_node.

DATA: l_change TYPE c,

l_dref_calc_line TYPE REF TO data.

CALL METHOD tree1->delete_all_nodes.

CALL SCREEN 9000.

Re: Refresh ALV tree after deleting the node.

Former Member — Mon, 14 Sep 2015 14:50:59 GMT

Try to use the method FRONTEND_UPDATE after changing ALV tree

Max

Re: Refresh ALV tree after deleting the node.

Former Member — Mon, 14 Sep 2015 14:56:25 GMT

Hi Max,

Yes I did use the frontend update. But I tree is not rebuilding

CALL METHOD tree1->delete_all_nodes.

CALL METHOD tree1->frontend_update.

CALL SCREEN 9000.

Re: Refresh ALV tree after deleting the node.

Former Member — Mon, 14 Sep 2015 15:07:39 GMT

you don't have to call the dynpro again, your method for deleting the node should be in PAI of 9000

try to check program demo BCALV_TREE_DEMO

Max

Re: Refresh ALV tree after deleting the node.

Former Member — Mon, 14 Sep 2015 15:23:47 GMT

Thanks Max.

I tried exporting the selected node.

CALL METHOD tree1->delete_subtree

EXPORTING i_node_key = l_selected_node.

It worked.