Class added on page load giving a validator error

hello All;
I have an adf_bc application with 2 pages, in the main page the user selects to create or edit a record, in the edit page he selects the id of the record from an LOV, back at the main after saving, the look up description of the ID should be displayed
i have done everything as the above, only when i select to save the look up description, which i added to the SQL of the view is not appearing, i tried to add on page load class, to re-execute querry but is giving me a validator error when i debug,
any idea's on how to re-execute the querry and display results
regards
Halim

sorry man::
i am displaying a table, which has the ID of departments, i created a view which returns the description of the selected department ID, and then i added the description from the view as an adf read only column to the table, and it worked fine
the page has an edit button which takes the user to another page, where he selects an ID for the department using an LOV
THE PROBLEM: when the user selects save with the new ID in the edit page, and returns to the main page, the description of the ID is not appearing, unless i re-excute the query, thats why i added a class on page load to re-execute the querry
is there a better way, to refresh the results

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Class added on page load giving a validator error

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