Thank you Swathi for your reply.
will you be able to explain how to set the Xml document values and bind to dropdown?
My list item rows for the repeating table are like this,
FirstName LastName Constraint
Suja ZV Yes
Swathi P N/A
Here FirstName and LastName are text boxes and Constraint is a dropdown list with predefined set of values Yes,No,N/A. These rows should appear in the repeating table with Constaint column set accordingly in an editable mode.
From this I understand that I have to set the list item values in an Xml document and use that to populate the dropdown.So fat I have seen that, if i use SetValue mathod it will add a duplicate right in side my dropdown ie, the data from the secondary data connection plus the one I set[becomes a duplicate)??