>>>>The question is if the user need to see it before he save it May be not but i agree with you if you want to show what is a auto number may be it's easier if you can show it. Personnaly if you really need continus chain of number {1,2,3,4,5,6,....} I think that's better to generate your number after the save action but if you can live with uncontinus chain number {1,3,4,6,....} show it before save action it's better ...
>>>>
>>>>Rocky Boy...
>>>
>>>Do think it is important to have a continues chain of numbers or does it really matter?
>>
>>What is use for ? I
>
>Look up ID numbers.

Personnaly i prefer the continus chain for id. It's generaly more clear for everyone but the uncontinus chain can't faily did the job well. So it's your choice.

Rocky boy ...