>Hallo Jess,
>exactly this is what I mean
>regards

You can make the customer.name as the controlsource of your listbox but make sure that the rowsource of it should also be equivalent to the customer.name.

To explain it further:

listbox.rowsourcetype = 6 && fields
listbox.boundcolumn = 1
listbox.rowsource = "customer.name"
listbox.controlsource = "customer.name" && optional bec. you can directly assign value to it i.e. listbox.value = customer.name

Or make use of the customer.code

listbox.rowsourcetype = 6 && fields
listbox.boundcolumn = 2
listbox.rowsource = "customer.name, code"
listbox.controlsource = "customer.code" && optional bec. you can directly assign value to it i.e. listbox.value = customer.code

Somewhere in your code, simply put: Thisform.Listbox.Refresh()

Listindex is not a good approach to achieve this.