topic Re: add_node / delete_subtree methods issue in ALV TREE with OOs in Application Development and Automation Discussions

add_node / delete_subtree methods issue in ALV TREE with OOs

SimoneMilesi — Wed, 11 Jun 2008 14:44:42 GMT

Hi all!

I got a strange issue with the ADD_NODE / DELETE_SUBTREE methods in an ALV-Tree with OOs.

In my Tree, after an user pushes the "A" button, i add some nodes without a problem.

If an user pushes the "B" button, i delete these nodes.

I can make this thing only once, because if the user push again the "A" button, the program add again the nodes, but when try to delete them i got this message

Exception condition "NODE_KEY_NOT_IN_MODEL" raised.

I debugged the program but i didn't find any difference between the first time i add/delete nodes and the second time.

Anyone has a good hint for the problem? :S

Re: add_node / delete_subtree methods issue in ALV TREE with OOs

uwe_schieferstein — Thu, 03 Jul 2008 19:34:04 GMT

Hello Simone

Without any line of coding it is difficult to analyze the error.

Do you have sample report BCALV_TREE_DEMO available in your SAP system? If so then have a look at its coding. It contains two additional toolbar functions for adding and deleting nodes without any problems.

Regards

Uwe

Re: add_node / delete_subtree methods issue in ALV TREE with OOs

Former Member — Fri, 04 Jul 2008 09:07:11 GMT

Hi,

I think this type of error u would get when system cant get Parent node key.So when adding or deleting node plz check node key under which u are inserting or deleting . i think it would help u.

Reward point if find usefull.

Regards,

Mayank

Re: add_node / delete_subtree methods issue in ALV TREE with OOs

SimoneMilesi — Fri, 04 Jul 2008 09:25:05 GMT

I solved it using a little trick that avoid me to add/delete nodes