I use datagrid to display the items in a contract. When the number of items is large and the grid view becomes full of items, the next item causes the grid to display only the last item. Although the first items are still in the grid and available when the user scrolls back, they would like to always view the last ten items that have been entered. I would like to implement this when the first column of the grid is filled since this is when the view "jumps" to show only the last item. I have tried using the firstrow property but I get the error invalid bookmark. Any ideas?