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Class item with unique identification number.

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Alejandro Dominguez	Thursday 04 November 2010 3:06:29 am Hello ! I'm trying to create a new class for the items of a stocktaking. I would like to have in my class an atribute with a unique identification number. This number must be written by an user. does anyone know how can I do this? Thanks!
Alejandro Dominguez	Thursday 04 November 2010 3:17:38 am I have think I need an unique alfanumeric id and not a number. i.e. rf2002 any ideas?

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Alejandro Dominguez

Thursday 04 November 2010 3:06:29 am

Hello !

I'm trying to create a new class for the items of a stocktaking. I would like to have in my class an atribute with a unique identification number. This number must be written by an user.

does anyone know how can I do this?

Thanks!

Alejandro Dominguez

Thursday 04 November 2010 3:17:38 am

I have think I need an unique alfanumeric id and not a number. i.e. rf2002

any ideas?