Multiple selection of rows in webdynpro

Question

Hi All,
How can we achieve the multiple selection of rows in a table in webdynpro and delete the same.
If i have a table with 4 rows i have selected 2 rows and i have to delete those 2 rows.
Thanks in Advance,
Bsreddy.

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.