how to sort the data by the expression in ListBox

[#1]

test:

load * Inline [
customer
00010 BBBBB
00020 CCCCC
00030 AAAAA
00040 DDDDD
]; 

I want to get:

00030  AAAAA

00010  BBBBB

00020  CCCCC

00040  DDDDD

[CELAMBARASAN]

Hi,

     ListBox Properties-->Sort tab-->Sort by expression as =Rank(SubField(customer,' ',2))

Celambarasan

[#3]

Thanks, is OK