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Accessing View Controller from Component Controller in the same Web Dynpro Component

If you wish to access the View Controller from methods on the Component Controller of a Web Dynpro component, you can do this very easily following the steps below:

Suppose we have a view called V_MAIN and a context node on that view called NODE_1.


1) Create a global attribute GO_V_MAIN_CTRL of type IF_WD_VIEW_CONTROLLER in Component Controller’s attributes tab;


2) Get the reference of View Controller in WDDOINIT method of view V_MAIN as below:

          wd_comp_controller->go_v_main_ctrl ?= wd_this->wd_get_api( ).


Now, you can access the View Controller in any Component Controller method. As an example, you can access the View Context Node as below:

   DATA lo_context          TYPE REF TO if_wd_context.

   DATA lo_root_node      TYPE REF TO if_wd_context_node.

   DATA lo_child_node     TYPE REF TO if_wd_context_node.


   lo_context = wd_this->go_v_main_ctrl->get_context( ).

” get root node

   lo_root_node = lo_context->root_node.

” get child node

   lo_child_node = lo_root_node->get_child_node( name = ‘NODE_1’ ).

You can read more about other methods accessible by the IF_WD_VIEW_CONTROLLER here: IF_WD_VIEW_CONTROLLER – Web Dynpro for ABAP – SAP Library

Hope that helps!



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