Dynamically change embedded interface view in window

Question

I have a Maincomponent M which embedds in its Mainwindow an interface view V_L from a component definition interface cid L. CID L handles the layout with several views and has two at runtime chosen variants (= cid_L-implementating components ) L1 and L2.
now my wd-application starts e.g. with layout L1 and I want to switch at runtime via a button or an event to L2. how can I achieve this?
Because M embedds in its window V_L (which can be filled by L1 or L2) I tried to delete the component in the usage of L1 and create the new component for showing L2.
but this doesn´t work. should I change some navigation links dynamically? because I thought when I create component L2 the interfaceview V_L is filled and I it´s automatically shown in its higher-ranking Mainwindow from M which embedds V_L.

Answer 1

Hi Thorsten.
Is your scenarion as follows.
You define an outbound plug in your main (e.g. 'OUT') at design time.
Then you start the application and you create a dynmic navigation using OUT
to L1 and embedd L1 in M this way.
Then you click a button and create again a dynamic navigation using OUT as outbound to L2 and embedd L2 in M?
If so you create 2 navigations which will be triggered when you fire OUT.
You can test this by setting the break point on the fire method. Somehow you will come to a point where you will see a table which stores the navigations and should contain 2.
I have a table with authorisation which contains all necessary data for the navigation to a corresponding component. I use the authoridation ID as name for the outbound which have to be created dynamically. And I use a Hashtable to store the value. This is of the type CL_C2S_SAPI_HASHTABLE. I create the object as attribute in view controller. Then each time a link is clicked I check whether the hashtable already contains a value for this authorisation. If not I call
prepare_dynamic_navigation and use the ID as outbound. Afterwards I store it in th hashtable.
lv_outplug = wd_this->outbound_plugs->getvalue( lv_auth ).
*   the navigation to the specified auth is performed
*   for the first time and have to be created.
    if lv_outplug is initial.
      lv_outplug = lv_auth.
      try.
          l_view_controller_api->PREPARE_DYNAMIC_NAVIGATION(
              source_window_name          = 'W_MAIN'
              source_vusage_name          = 'V_MAIN_USAGE_1'
              source_plug_name            = lv_outplug
              target_component_name       = lv_comp
              target_component_usage      = 'USED_COMPONENT'
              target_view_name            = 'W_MAIN'
              target_plug_name            = lv_plug
              target_embedding_position   = 'V_MAIN/UI_COMP_CONTAINER' ).
*         save outbound_plug for later usage.
          wd_this->outbound_plugs->setvalue(
           exporting
             name = lv_auth
             value = lv_outplug
        catch cx_wd_runtime_repository into lr_exception.
          data s type string.
          s = lr_exception->get_text( ).
          raise exception type cx_wdr_rt_exception.
      endtry.
    endif.
    l_view_controller_api->fire_plug(
     exporting
       plug_name = lv_outplug
Hope this helps.
Cheers,
Sascha