copy lists

[Tem]

When I tried to add new items to a copied list, it affects both lists.

List<int> intList1 = new List<int>();
List<int> intList2 = new List<int>();

intList1.Add(1);
intList2 = intList1;
intList2.Add(2);

how i can simply copy the data not reference the original list. this is very
confusing. are there other data types like this? how can i tell?

Tem

 

[Arne Vajhøj]

When I tried to add new items to a copied list, it affects both lists.

List<int> intList1 = new List<int>();
List<int> intList2 = new List<int>();

intList1.Add(1);
intList2 = intList1;
intList2.Add(2);

how i can simply copy the data not reference the original list. this is
very confusing. are there other data types like this? how can i tell?

That is how references work in .NET !

Try replace:

intList2 = intList1;

with:

intList2 = new List<int>(intList1);

Arne