Hi,
 
If you are reffering to a list view then this should work:
1. You can use a stored proc to get the last row ID and return it into a datalabel/parameter and copy the data you need from the last row. 
2. If you cannot use a stored proc, you can create another table/SmartObject, store the last created ID in the table and update the value each time a new row is created. You can the use that ID to read the previous row's data.
 
Let me know if this doesnt make sense. 
                
     
                                    
            If you are reffering to a list view, you can simple create am expression and use the function "count" to check number of rows in the list and then filter the list with execute a view method and filter it with the expression count which would be equal to the last row number. 
 
Cheers