combining two or more data in listbox

Dear friends
i have a problem to combine data in 2 listbox
example

Listbox1
name1
name2
name3
name4
name5
...

Listbox2
address1
address2
address3
address4
address5
....

how add 2 listbox into Listbox3
name1
address1
name2
address2
name3
address3
...
thankyou