Oracle Forms

Hello guys,

I am using oracle forms 6i and new to it. I am having a multi data block.

I am facing a problem when I try to set the item instance property with respect to the list type.
1) Basically, I am having a list item having three types MANUAL, INVOICE and BOE. All are independent of each other. I am facing the problem with the MANUAL type.
I have written this code on When-Validate-Trigger of the list item as well as When-List-Changed. Also I am not setting the properties of any items initially(neither on When-New-Form-Instance nor on When-New-Block-Instance).

if block.doc_type = 'MANUAL' then
set_item_instance_property('BLOCK.VENDOR_NO', to_number(:system.cursor_record), REQUIRED,PROPERTY_TRUE);
end if;
But I am getting this warning/error frm 41383 - no such property for set_item_instance_property on both the triggers for the first time when I open the form and thereafter. During the same form session, if I click on the next line it shows a message Field cannot be empty and directs to the item where I compulsory need to insert a value. I also tried using to_number(:system.trigger_record) but getting the same issue. There are many more items I need to set the same property for.

2)The invoice item on the block/form has a LOV. Another requirement is when I select 'MANUAL' , that LOV should not appear on selection of 'MANUAL' type and the user should be able to insert the value manually and validate manually. I did use set_lov_property, but did not get the correct usage. Please assist as soon as you can.

Edited by: 1005292 on May 20, 2013 12:04 PM