How to use cl_dd_link_element

Question

Hi friends,
  Can any one help me, how to trigger cl_dd_link_element->click event from code to open any purchase order from a link.
Thanks and regards
Srikanth. S

Answer 1

Hi,
Below are the steps to achieve your request.
1. Define the link. You can do this using add_link method. In my case i have used add_link method for a column object.
/* Declarations */
DATA: o_col TYPE REF TO cl_dd_area.
           link   TYPE REF TO cl_dd_link_element.
/* Link Method */
      CALL METHOD o_col->add_link
        EXPORTING
          text    = "Click here to view PO'
          name    = 'UNIQUE_PO'
          tooltip = "Url to view PO
        IMPORTING
          link    = link.
2. Define event handler class.
/*CLASS DEFINITION */
CLASS cl_link_event_handler DEFINITION.
  PUBLIC SECTION.
    METHODS:
      handle_submit_links FOR EVENT clicked OF
                cl_dd_link_element IMPORTING sender.
ENDCLASS.                    "cl_link_event_handler DEFINITION
/* CLASS IMPLEMENTATION */
CLASS cl_link_event_handler IMPLEMENTATION.
  METHOD handle_submit_links.
     /* Here you define the process you would like to do */
    /* for example open a web page */
  ENDMETHOD.                    "handle_submit_links
ENDCLASS.            "cl_link_event_handler IMPLEMENTATION
3. Register events for action. This step is essential, otherwise there will be no action.
Handler for link action
DATA: event_handler TYPE REF TO cl_link_event_handler.
  IF event_handler IS INITIAL.
    CREATE OBJECT event_handler.
  ENDIF.
  CHECK event_handler IS BOUND.
  IF link IS BOUND.
    SET HANDLER event_handler->handle_submit_links FOR link.
  ENDIF.
I hope this helps.
Thanks and Best Regards,
Dinesh.