Question

Is there an easy way, either through LINQ or Generics, to find out if elements in one List are all available in another List.

I’m currently using Intersect to check this.

For e.g.

List<string> list1; //{ 5, 4, 1, 3, 9, 8, 6, 7, 2, 0 }

List<string> list2; //{ 1, 3, 9 }

list1.Contains(list2) == true

Thanks in advance

Answer 1

The Intersect method will give you all the elements that are in both lists.

E.g.

var inboth = list1.Intersect(list2);

or if you just want to know if there are any shared elements between the two

if(list1.Intersect(list2).Any()) ...