Problem In Tabular Data Block

Question

Hi,
I have to two blocks on a form (1) CONTROL----------------------------------------->CONTROL BLOCK
(2) DETAIL-------------------------------------------->DATA BLOCK
DETAIL BLOCK has four items referencing DETAIL TABLE COLUMNS namely ROWNUMBER, ITEMNAME, QTY, PRICE.
In BLOCK(1) I have three text items to get input from user, and a push button . In this block(1) user inputs ITEMNAME,QTY & PRICE and presses push button.
In WHEN-BUTTON-PRESS trigger I wrote below mentioned code
BEGIN
go_block('detail');
first_record;
for a in 1..:control.QTY loop
create_record;
:global.rownumber:=:global.rownumber+1; // this :GLOBAL.rownumber variable, I declared & initialized with zero, in WHEN-NEW-FORM-INSTANCE trigger.
:detail.rownumber :=:global.rownumber;
:detail.itemname :=:control.itemname;
:detail.qty :=1;
:detail.price :=:control.price;
end loop;
END;
If usesr enters QTY 4,,,,, four rows are being created in detail block as four records , if user enters QTY 3, three rows are being created, and so on as per number entered in QTY text item........THE PROBLEM IS THAT, ROWS(RECORDS) ARE CREATING BUT FIRST ROW IN DETAIL BLOCK REMAINS EMPTY AND IT STARTS CREATING RECORDS FROM 2ND ROW.
An help please.
Regards,

Answer 1

Hello,
Well, if you think that the code you wrote with global variable its working for you then for the problem you mentioned the below code should work.
BEGIN
go_block('detail');
first_record;
clear_block;
for a in 1..:control.QTY loop
:global.rownumber:=:global.rownumber+1;
:detail.rownumber :=:global.rownumber;
-- :detail.rownumber :=:SYSTEM.TRIGGER_RECORD; -- this line should work also. So, no need for global variable
:detail.itemname :=:control.itemname;
:detail.qty :=1;
:detail.price :=:control.price;
create_record;
end loop;
END;-Ammad