APEX

Hi, i have a problem with interactive grid when dynamic action on change column "CODE_ITEM",

i have a column hidden ("ID_ITEM") but i need change it with javascript or plsql (dynamic action), the item (column) Settings is Value Protected: No.

i'd try 2 methods with js (both works with not hidden example: text field):

apex.item("DML").setValue("X");

or

var $te = $(this.triggeringElement);

var rowId = $te.closest('tr').data('id');

var ig$ = apex.region("REP_DATO").widget();

var model = ig$.interactiveGrid("getViews","grid").model;

var record = model.getRecord(rowId);

model.setValue(record,"DML","X");

i also try with plsql code (works with not hidden example: text field)

:DML:='X';

return item: DML

when is hidden never change..!!! remember i have the item (column) Settings is Value Protected: No.

help me, or it's a bug??.