how to restrict List
I have this Lists.
Region : Asia,Europe
Country: Japan, France
when i make a table has List(Region, Coutry), i can get table1.
Off course i know when I make a table has List (Country), Iget table2
But I want this type of table3.
the point is how to show parent List (region) and restrice children List (country) ,unless increase memories.
Please tell me, how to make this table