When "change" pop-up key (named lov)

Question

apex on the cloud ,
hi all ,
a medical laboratory app
i have a page , with a pop-up key(named lov) , the lov is based on some test names and a derived column beside the pop-up key column ,
what i want is : when i choose a test from the pop-up list , the price is selected from the database into the derived column ,
what i did is :
a dynamic action on the pop-up key column (on-change) , execute javascript code , which is : -- on the jquery selector [name="f07"]
/*Declare the variable being used*/ 
var row, priceElement,priceElementId, testElement,price,getPriceAJAX,price; 
/*Get the jQuery object of the DOM element that triggered the dynamic action.*/ 
testElement = apex.jQuery('#'+this.triggeringElement.id); 
/*Get the row in which the triggering element is located*/ 
row = testElement.closest('tr'); 
/*Travers back to the element that holds the price*/ 
priceElement = row.find('[name="PRICE"]');
/*Create the object that is going to get the price from an ondemand proces*/ 
getPriceAJAX  = new htmldb_Get(null,$v('pFlowId'),'APPLICATION_PROCESS=GetPrice',$v('pFlowStepId')); 
/*Add the value of the triggering element this value will be submitted and set to apex_application.g_x01*/ 
getPriceAJAX.addParam('x01',$v(this.triggeringElement.id)); 
/*Run the dynamic action and get the price*/ 
price = getPriceAJAX.get(); 
/*Set the price to the price element*/ 
/*$s(priceElementId,price);  Doesn't work on new rows.*/
priceElement.text(price);
then i created a process -- on demand when called by ajax
with this code :
declare 
cursor c_test(TstID number) 
is 
SELECT COST_OF_TEST
FROM   TEST_DEFINITIONS  
WHERE  TEST_ID =TstID;
v_test_no number; 
v_price   number; 
begin 
v_test_no := to_number(apex_application.g_x01); 
open c_test(v_test_no); 
fetch c_test 
into  v_price; 
close c_test; 
sys.htp.prn(to_char(v_price,'L999G990D00')); 
end;
but when i choose a test , nothing happens , the cost of test is not selected from the database into the derived column , why ? what is wrong ?
thanks a lot
the link for the application is
http://apex.oracle.com/pls/apex/f?p=26522:30:7917782328738:::::
the login attributes is
friend
friend

Answer 1

it's solved , thanks to all of you