How get value to view from componentcontroller without mapping?

[Former Member]

Hi

I found many article about "Reading Component controller’s context node from view without mapping in Web Dynpro for ABAP" etc.http://www.saptechnical.com/Tutorials/WebDynproABAP/views/ContextNode.htm

But I need read only attribute from node with carninality 1..1.

How is it possible?

Thank you

[former_member184578 · Accepted solution]

Hi,

Use get_attribute( ) method of context element to read the single attribute.

Try the below code:

  DATA lo_nd_node TYPE REF TO if_wd_context_node.
   DATA lo_controller TYPE REF TO if_wd_controller.
   data lo_context TYPE REF TO if_wd_context.
   DATA lo_node TYPE REF TO if_wd_context_node.
   DATA lo_el_node TYPE REF TO if_wd_context_element.  
   DATA lv_attr TYPE wd_this->element_node-attr.

 *  Get Node from Component Controller
   lo_controller ?= wd_comp_controller->wd_get_api( ).
   lo_context = lo_controller->get_context( ).
   lo_node = lo_context->root_node.


   lo_nd_node = lo_node->get_child_node( name = 'NODE_NAME' ). " NODE_NAME if the name of content node

   lo_el_node = lo_nd_node->get_element( ).

 * Get attribute
   lo_el_node->get_attribute(
     EXPORTING
       name =  `ATTR_NAME`  " ATTR_NAME is the name of Attribute in Context Node  
     IMPORTING
       value = lv_attr ).

hope this helps,

Regards,

Kiran

[Former Member · Accepted solution]

Hi Kiran Kumar Valluru

Thank you.