c# - Flatten List in LINQ

Question

I have a LINQ query which returns IEnumerable<List<int>> but i want to return only List<int> so i want to merge all my record in my IEnumerable<List<int>> to only one array.

Example :

IEnumerable<List<int>> iList = from number in
    (from no in Method() select no) select number;

I want to take all my result IEnumerable<List<int>> to only one List<int>

Hence, from source arrays: [1,2,3,4] and [5,6,7]

I want only one array [1,2,3,4,5,6,7]

Thanks

Answer 1

Try SelectMany()

var result = iList.SelectMany( i => i );