TableView: keep the selected page

Question

I use a htmlb:tableView with 50 - 100 entries.
The visible row size is 20, so I have multiple pages.
Is there a way to keep the selected page after a round trip.
At the moment, the first page is shown after each round trip, no matter which page was selected before.

Answer 1

Hi Daniel,
I have the same problem and I wish I had a solution like displayed upon :-). Here some hacking.
First in DO_HANDLE_EVENT method of controller:
* keep selected page of table view
  DATA: lcltvevt TYPE REF TO cl_htmlb_event_tableview.
* first get the correct event
  IF htmlb_event->if_htmlb_data~event_name = 'tableView'.
    lcltvevt ?= htmlb_event.
    IF lcltvevt->id = 'MY_CDAG_TABLE' "your tableView id
      AND lcltvevt->event_type = 'navigate'
      AND lcltvevt->navigationmode = 'BYPAGE'.
*     navigate pageDown, pageUp, top, bottom
      CASE lcltvevt->navigationtype.
        WHEN 'Index'.
*       sorry I have no idea for index
        WHEN 'pageDown'.
*         hold data in model instance       
          lcl_mo->cdag_add_info-firstvisrow =
          lcltvevt->firstvisiblerow +
          lcltvevt->visiblerowcount.
        WHEN 'pageUp'.
          lcl_mo->cdag_add_info-firstvisrow =
          lcltvevt->firstvisiblerow -
          lcltvevt->visiblerowcount.
        WHEN 'top'.
          lcl_mo->cdag_add_info-firstvisrow = 1.
        WHEN 'bottom'.
          lcl_mo->cdag_add_info-firstvisrow =
          ( lcltvevt->rowcount DIV
          lcltvevt->visiblerowcount )
          * lcltvevt->visiblerowcount + 1.
      ENDCASE.
    ENDIF.
  ENDIF.
secondary in the view:
          <htmlb:tableView id              = "MY_CDAG_TABLE"
                           visibleRowCount = "12"
                           fillUpEmptyRows = "false"
                           allRowsEditable = "X"
                           table           = "//MODEL/CDAG"
                           headerVisible   = "FALSE"
                           iterator        = "<%= it_cdag %>"
                           visibleFirstRow = "<%=model->cdag_add_info-firstvisrow%>" />
If you want to get the index, try this
* check for selection mode (for later using internal)
  CALL METHOD request->get_form_field
    EXPORTING
      name  = `htmlbevt_par1`
    RECEIVING
      value = l_name_of_event.
* l_name_of_event is something like "Index,1,12,20,P" on index selection.