How to disable check box (row selector) in a tabular APEX report

Question

I have a tabular report with check boxes that gets populated by a SQL query.  For certain rows, I want to disable (or not render) the check box, depending on the value of one of the columns for that particular row (if the value of a column defined as Date is less than sysdate, I don't want to display the check box for that row).  I tried using the Conditional Display in the Column Attribute section of the check box, but I am unable to access this Date column which is being selected from a view in the source SQL.  I used variable such as :name-of_column, V(':name-of_column'), but always get a NULL value for this Date column in the SQL that I am trying to code in the Conditional Display section.  For this reason, my condition does not work correctly.
What am I doing wrong?  Is my approach above correct?

Answer 1

Hi Ajay,
I don't think you can handle this with a conditional display, as that works on column level rather than row level.
The way I see it, there are two things you can do:
1) an sql approach, where youo render the checkbox as part of your query using apex_item.checkbox, check the oracle docs for detailed info on the usage APEX_ITEM
You'll end up with a query like
select case when YOUR_DATE_COLUMN < sysdate
                  then null
                  else  apex_item.checkbox2( p_idx => 1
                                                           , p_value => YOUR_DATE_COLUMN
,      <rest of your query here>
from YOUR_TABLE
2) an JavaScript approach in which you create a dynamic action that check your tabular form date column and, when necessary hides and disables the checkbox for that row.
First option is more robust, but will require a bit more work. Second option is faster to develop, but might have different effect across various browsers and browser versions.
Regads,
Vincent
http://vincentdeelen.blogspot.com