Multiple selection of various levels of hierarchy

Question

I have a 5-level hierarchy, but I think the question can be asked thinking of just a two level hierarchy:  Suppose we have Continent and Country, and I want to select North America and Europe.  The country field should filter down to show only countries in North America and Europe.  I then want to select Spain and France as my European countries, and will let North America stand as having selected all countries in North America.  Is it possible to do this in business objects?
Thanks in advance for any help you can provide.

Answer 1

Hi Srinivas,
Steps to make multiple rows selectable in table:
1) Create the selection property of the node that you are binding to the table as o..n
2) Un-check the, "Initialization Lead Selection" checkbox for the node which you are using to bind to the table
3) In the Layout go to the table & specify selection mode as MULTI_NO_LEAD. It is important that you set the selection mode to MULTI_NO_LEAD or else in the end you would be capturing 1 row lesser than the total number of rows the user has selected. This is because 1 of the rows would have the LeadSelection property & our logic wouldn't be reading the data for that row. Check the example code fragment as shown below:
Steps to get the multiple rows selected by the user:
In order to get the multiple rows which were selected by the user you will just have to call the get_selected_elements method of if_wd_context_node.  First get the reference of the node which you have used to bind to the table & then call this method on it. Check the example code fragment below:
METHOD get_selected_rows .
  DATA: temp TYPE string.
  DATA: lr_node TYPE REF TO if_wd_context_node,
            wa_temp  TYPE REF TO if_wd_context_element,
            ls_node1 TYPE wd_this->element_node_flighttab,
            lt_node1 TYPE wd_this->elements_node_flighttab.
  lr_node = wd_context->get_child_node( name = 'NODE_FLIGHTTAB' ).
" This would now contain the references of all the selected rows
  lt_temp = lr_node->get_selected_elements( ).
    LOOP AT lt_temp INTO wa_temp.
" Use the references to get the exact row data
      CALL METHOD wa_temp->get_static_attributes
        IMPORTING
          static_attributes = ls_node1.
      APPEND ls_node1 TO lt_node1.
      CLEAR ls_node1.
    ENDLOOP.
ENDMETHOD.
So now lt_node1 containes information about all the rows which are selected by the user.