TableView: Filter as Dropdown

Question

Hi @all
Has someone experiences with rendering the filter-row in an TableView? I get the access to the "data-rows" and i am able to render them, but how to get access to the filter row and create a "dropdown-Filter".
I want to create a functionality which is know from Excel: Autofilter!
Thank you for helping on this
Thorsten

Answer 1

As promised, here is my example (using MVC):
In DO_REQUEST, I call a model method to create my filter table, because the content in my table is changing all the time, I need my filter to be up to date as well.
Example: LASTNAME as column name for the filter
data: lt_filter      type tableviewfiltertab,
      lv_last_insert type string,
* here go your table and table structure definitions
* lt_tvdata type ...
* ls_tvdata type ...
field-symbols: <filter> like line of lt_filter,
               <wa>     type ihttpnvp2.
  append initial line to lt_filter assigning <filter>.
  <filter>-columnname = 'LASTNAME'.
* define a pre-selection
  <filter>-selection  = '*'.
* append filter lines:
* first a joker character
  append initial line to <filter>-dropdownlistbox_table assigning <wa>.
  <wa>-name  = '*'.
  <wa>-value = '*'.
* ... and now the tableview table entries
* lt_tvdata is a copy of the table for the tableview
* sort table
  sort lt_tvdata ascending by 'LASTNAME'.
* now do the loop ...
  clear lv_last_insert.
  loop at lt_tvdata into ls_tvdata.
*   if not in filter already ...
    if lv_last_insert is initial or lv_last_insert ne ls_tvdata-lastname.
*     then append the value
      append initial line to <filter>-dropdownlistbox_table assigning <wa>.
      <wa>-value  = ls_tvdata-lastname.
      <wa>-name   = ls_tvdata-lastname.
*     set last insert
      lv_last_insert = ls_tvdata-lastname.
    endif.
  endloop.
  sort <filter>-dropdownlistbox_table by value.
This should do for a quick example, all left to do is use the filter in your tableview:
<htmlb:tableview
  id = ".....
  columnFilters = "<%= model->filter %>" />
* filter table as model attribute in this case
Well, I should turn this topic into a weblog, as I got another (slightly different) dropdown in my filter ...
Hope you get your part going with this example for a start.
Max