multiple rows of editable data

[Mohd Amin Mohd Din]

Hi,
 
I have a master detail form where the detail section has multiple rows
which have one field to be updated per row. There is one submit button
at the end of the form which will allow the data in the form to be
updated in to the data store.  How do I make the field represent a
unique number, putting the detail row id?
 
 
Thanks 
Amin