Is there a way to programmatically check the Row Selector for a row?

Question

Greetings,
I have a report that has the Row Selector column. I am processing the rows that are checked by the user when they click a button, so I am already looping thru FOR ii IN 1 .. Apex_Application.g_f01.COUNT.
I need some of the rows to always be processed in the loop, so I would like to:
1. have certain rows checked automatically. Is that possible?
2. using the same logic that automatically checks certain rows I would also like to insure they stay checked, or are process in the loop. (You know, I may automatically check certain rows, but the user may uncheck them.) So, even if the user doesn't check them, I would like to programmatically check them before the FOR ii IN 1 .. Apex_Application.g_f01.COUNT looping occurs.
3. If it is possible to prevent the unchecking of a row that is automatically checked it would be awesome and would mean that requirement 2 is moot. If that's possible let me know. That would be sweet. :-)
I hope that makes sense, and that you understand what I need to do. If not, let me know.
Thanks in advance for your help, Tony

Answer 1

Hi Shunt,
That's a great help ! ! ! Thanks much ! ! ! :-)
I did some additional research from what you told me, and I found out that the apex_item.checkbox is a page item and it is included in the SQL that builds a report. Your code got me on the right track. That's great. Also, it's great to know I can do what I need. My next question is 'How do I get there from here?' :-)
I built my current report using the report builder, then used the trick to change it to a type of 'SQL Quey (updatable report)' just so I could click the setting to add the checkbox column, then I set the type back to 'SQL Query'. So, I don't have apex_item.checkbox in my SQL. I guess Apex (thru its magic) prepends it to the SQL somewhere along the way. What do I need to do now?
Do I need to rebuild the report without using the above 'trick' and code the checkbox into my SQL myself? Or, can I just add it to the existing SQL? Or, with that cause 2 checkboxs to be on the report (mine and the one Apex generates)? That's one set of questions. :-)
Also, whether the checkbox is checked (and disabled) is based on a value in the table the SQL is running over. Would it be possible to put a subselect, or something along those lines, in the main SQL (that has the checkbox item) that would programmatically check the checkbox?
Sorry for my newbie questions, but I'm relatively new to Apex and PL/SQL, so there's still a lot I have to learn. All you need to do is point me in the general direction and I'll take it from there. I just want to know the right way to go about this before I start coding. :-)
To give you and idea of what I'm doing now and want to do I have my simple SQL below:
= = =
select
ecn_approval_master_id, mandatory, approval_type,
htmldb_item.hidden(50,ecn_approval_master_id) idalias
from
ecn_approval_master
where ecn_plant_master_id = :P0_PLANT
order by mandatory DESC, approval_type
= = =
The 'mandatory' column contains 'Y' or 'N'. If it is 'Y' I want the checkbox to be checked and disabled. If it would help in the coding I could have the values of the mandatory column 'Y' and NULL. But, I'm not sure if it will help, because it looks like the checked rows are listed in parm 4. Then, when the htmldb_application.g.f10.count.... routine processes the selected they mandatory ones will automatically be processed. Course, you probably figured that out already.
Thanks, Tony