I have a table with two columns like this, but with a lot more data:
Group
Value
Group 1
A
Group 1
B
Group 2
C
Group 2
D
It's too many values to show them all in a good way in a single listbox, so I want to split them into multiple listboxes. One listbox for each group, like this:
Listbox 1
Listbox 2
A
C
B
D
The problem is that if I do this, I can only select values from one group at a time. If I for instance want to select both A and D, it's not possible.
Is it a way to work around this problem? Or any other way solve this (whithout using a tree view)?
