Reset Sorting on Report List

Question

Is there a way to reset the default sorting on a report page? I am able to reset pagination on the page with a process, but how would I go about resetting pagination and sorting columns on the report page with one button named "Reset " on the page.
Any help would be appreciated.

Answer 1

Have a look at
apex_util.remove_sort_preferences
But be aware that it does a reset for all report sorting preferences of a user. Currently there is no procedure to just reset the sort preference for a particular report.
But there is a workaround available. The preferences are stored in the non public table WWV_FLOW_PREFERENCES$ with a preferences name of
FSP100_P2_R342859614236079794_SORT
FSP100=application id
P2=page id
R342859614236079794=region id
So you can write a procedure which builds that preference name and remove it with the regular Apex_Util.remove_preference procedure.
The procedure could look like:
CREATE OR REPLACE PROCEDURE remove_report_sort_preferences
  ( pStaticId IN VARCHAR2
IS
    vRegionId APEX_APPLICATION_PAGE_REGIONS.REGION_ID%TYPE;
BEGIN
    SELECT REGION_ID
      INTO vRegionId
      FROM APEX_APPLICATION_PAGE_REGIONS
     WHERE APPLICATION_ID = Apex_Application.g_flow_id
       AND PAGE_ID        = Apex_Application.g_flow_step_id
       AND STATIC_ID      = pStaticId
    Apex_Util.remove_preference
      ( p_preference => 'FSP'||Apex_Application.g_flow_id     ||
                        '_P' ||Apex_Application.g_flow_step_id||
                        '_R' ||vRegionId                      ||
                        '_SORT'
END remove_report_sort_preferences;Now you just have to use the new region property "Static Id" to assign the report region an "external" id which you can reference in your code.
Patrick
My APEX Blog: http://inside-apex.blogspot.com
The ApexLib Framework: http://apexlib.sourceforge.net
The APEX Builder Plugin: http://sourceforge.net/projects/apexplugin/