Cascad List With Data/Valid/List.
Items may be add in Lines and Columns wihtout modification.


http://cjoint.com/?jjsSmjVC2x

Mild Steel Stainless Steel Aluminum
1 4 6
4 6 7
8 8 9
10 14
12
15

Named ranges:
choix1:=Offset($F$1,,,,CountA($F$1:$Z$1))
choix2:=$F:$F

1ere liste in B2: Data/Valid/List:
=Choix1

2eme liste in C2: Datat/Valid/List:

=Offset(choice2,1,Match(B2,Choice1,0)-1,CountA(Offset(choice2,,Match(B2,Choice1,0)-1))-1)

JB
http://boisgontierjacques.free.fr



On 9 sep, 17:54,
m wrote:
What I want to do is use a drop-list with three(3) options. Based on the
option picked from the first drop-list, the other drop-lists will only
display the data relevant to the selected option. This way in the subsequent
drop-lists will only display the correct information. For example.

Main drop-list has three options: 1. Mild Steel, 2. Stainless Steel, 3.
Aluminum

Second drop-list will only have the thicknesses for Mild
Third will only have thicknesses for Stainless and so on.