Everytime I delete the first item in my list I get the following error:





The CurrentRow could not be evaluated because the CurrentRowIndex is out of range. Business object record count: 7. CurrentRowIndex: -1.



A closer evaluation of the code shows the following issue ... when the list is at the first item ... the _CurrentRowIndex is already at 0 ... the -= 1 changes this to a negative one which throws the error above. Should I put a check in there to see if the _CurrentrowIndex is already 0 before decrementing?

                If loCurrentPk.Equals(PKValue) Then

                    '-- Remove the current row and navigate to the next row

                    loRow = Me.CurrentRow

                    loRow.Delete()

                    loRow.AcceptChanges()



                    '-- Decrement the index and navigate

                    Me._CurrentRowIndex -= 1

                    Me.Navigate(BusinessNavigationDirection.Next)

                Else

                    '-- Find the row to delete

                    If Me.SeekToPrimaryKey(PKValue) Then

                        '-- Remove the row

                        loRow = Me.CurrentRow

                        loRow.Delete()

                        loRow.AcceptChanges()



                        '-- Move back to the original row

                        Me.SeekToPrimaryKey(loCurrentPk)

                    End If

                End If

This has been a long hard non-billable day my friends.



Thanks,



CTBlankenship

Charles T. Blankenship
Senior Consultant
Novant Consulting, Inc.
704.975.7152
http://www.novantconsulting.com

You are not going to want to delete through the CurrentRow...this may potentitally wreak havoc on a number of different levels.  First of all you should really use the following command:

The above command will only mark the row as deleted (the True) and not go back to the server, obviously False will go back to the server.  Second, if you don't want to commit the changes, then you can call the following command:

This wasy you are staying within the logic of the BO.  Even if you want to call the delete on the data table directly would be safer than passing of the row reference and the smoking it:

Any of these are going to be much safer.  I recommend the first option as it remains within the BO logic.