>The problem is that if you do this with a PK value the Row knows that it's a PK. If you add two records this way you have a PK rule violation because it's not unique.

I can't think of anything much better than what the Fox team does with record numbers in a view cursor. They use negative numbers. Is there a way to make the dataset accept negative numbers locally and then not save them back to the database at save time? (I know I am way out of my depth here.)

pamela