EDT for the positive integer numbers in Dynamics AX

Question

I created integer EDT for "Item Number".

Which "Extends" type should I use in properties for positive int numbers?

Answer 1

Well, there is the EDT PositiveNumber.

But if you are making a new type for identification purposes, you may leave the Extends property blank, and set AllowNegative to No. Beware that you will be limited to 9 digits for int and 18 for int64.