Delete node created dynamically

[RicardoRomero_1]

Hi all,

I'm creating some nodes dynamically for create also some UI elements and do the binding.

I have also a button for "restart" the view and recreate again the nodes. But when I'm trying to delete a node I'm getting an error like:

Cannot delete ZZ_TEST#MAIN.CONTEXT.MY_NODE

I've removed all my code and I've only left the code for create the node and the code for delete it, but the error still appears.

This is my code:

DATA: lo_context_info TYPE REF TO if_wd_context_node_info,         lo_my_node_info TYPE REF TO if_wd_context_node_info,         lo_nd_my_node TYPE REF TO if_wd_context_node.   lo_context_info = wd_context->get_node_info( ).   TRY.       lo_nd_my_node = wd_context->get_child_node( name = 'MY_NODE' ).     CATCH cx_wd_context.   ENDTRY.   IF lo_nd_my_node IS NOT INITIAL.     lo_nd_my_node->invalidate( ).     CALL METHOD lo_context_info->remove_child_node       EXPORTING         name   = 'MY_NODE'.   ENDIF.   CALL METHOD lo_context_info->add_new_child_node     EXPORTING       name                         = 'MY_NODE'       is_mandatory                 = abap_true       is_mandatory_selection       = abap_false       is_multiple                  = abap_false       is_multiple_selection        = abap_true       is_singleton                 = abap_true       is_initialize_lead_selection = abap_true     RECEIVING       child_node_info              = lo_my_node_info.

Do you know what i need to do?

Thanks in advance.

[Former Member · Accepted solution]

Hi Ricardo,

Try passing the is_static parameter and set it as false.

Most probably the code to remove it will work after that.

Regards,

Jaspreet

[RicardoRomero_1 · Accepted solution]

Thanks Jaspreet  ! this solved my problem !

[Former Member]

Hi Ricardo,

Try setting is_mandatory to false and check.

Regards,

Fareez

[RicardoRomero_1]

Hi Fareez,

I've tried setting is_mandatory to false, but the error still appears.

[Former Member]

Hi Ricardo,

I believe the same as Jaspreet. Try adding the is_static parameter. It must work.

Regards,

Fareez

[Sharathmg]

From the code, it looks like you are trying to delete before adding the node.

Try to move the add new node code afirst and then call the delete node.

Let me know, if that resolves the issue.

Regards,

Sharath

[RicardoRomero_1]

Hi Sharath,

I'm using the same button for create the node and for the delete it.

The first time you use the button the node is not created yet, so the var lo_nd_my_node returns empty and I'm not trying to delete it. Then I'm creating the node.

The second time you push the button the node is already created. So this second time the var lo_nd_my_node is filled, and then i'm trying to delete it.