>>All,
>>
>>I want to be able to save an invoice by saving the header and all the line items at the same time. I can save the header and I can edit the line items.
>>
>>Can I create a method that iterates through the line item datarows and execute the LineItem.Save method against each datarow? I think I need call this new method is the PreSaveHook and retun false from the method to prevent the default Save behavior, is this correct?
>>
>>TIA
>>
>>Rex
>
>I

I would create a method with a Transaction and try/catch

try 
    insert header with Transaction
    for each line item
              insert line item with same transaction
    transaction.commit
catch 
    -- do some logging code
    transaction.rollback
end try