Sum of the fields in SO form using Forms personalization

Question

In sales order form, Once we enter the item and qty in a line . The qty entered should be multiplied by volume of an item avaiable in mtl_system_items_b and should be displayed in the line level DFF(attribute14). Thus we get the line level Volume
Once n number of lines are entered in SO form . The sum of line level volume should be displayed in the header level DFF(attribute14.
I am able to get the Line level volume using global variable.
Could any one please let me know is it possible to get the sum of line level volume in the header DFF using forms personalization.

Answer 1

My requirment is to get the "Line level volume" information in line level DFF and "order level volume" information in header level DFF of a Sales Order form.
line level volume = unit_volume*quantity
Order level Volume = sum of n number of line level volumes = line level volume of line 1.1 + line level volume of line 1.2 + line level volume of line 1.3 ......
For Example consider an item 2E00001010 item. The volume of this item is mentioned in the physical attributes of an item. we can get the volume of this item from unit_volume in mtl_system_items_b . say for example the unit_volume of this item is 20 litres.consider another item 2X000X101 and unit_volume is 15 litres.
Now in sales order in line 1.1 i have entered an item 2E00001010 and quantity as 10. In line 1.2 i have entered an item 2X000X101 and quantity as 10 and saved the sales order.
1.1 line level volume = 20*10 = 200
1.2 line level volume = 15*10 = 150
Order level volume = 200 + 150 = 350
So as according to the requirement in
1.1 line level DFF(LINE.ATTRIBUTE14) 200 should be displayed .
1.2 line level DFF(LINE.ATTRIBUTE14) 150 should be displayed.
In header level DFF(order.attribute14) 350 should be displayed.
By using below forms personalization i am able to get the Line level Volume information displayed in Line level DFF(Line.attribute14)
seq 10
description : Line Level Volume
Trigger event : when-New-Item-Instance
Trigger Object : Line.Ordered_quantity
Level : Site
Action Seq: 10
Type: Property
Object Type: Global Variable
Target Object: XX_VOL
Property Name : Value
Value = =SELECT to_char(nvl(Unit_volume,0)) from mtl_system_items_b where segment1 =:line.ordered_item_dsp and organization_id = 89
Action Seq: 20
Type: Property
Object Type:Item
Target Object: LINE.ATTRIBUTE14
Property Name: Value
Value = =to_number(:global.XX_VOL)*:line.ordered_quantity
I would be glad if any one could let me know how to get the Order level volume and get displayed in the Header level DFF(order.attribute14) using forms personalization.