```
public class Test
{
  int i;
  string s;
}

List<Test> testList = new List<Test>(); //assume there are some values in it.

List<int> intList = new List<int>(){ 1,2,3};

```

How to I say get `items from testList where i is in intList` using the linq to objects.

something like `List<Test> testIntList = testList.Where(t=>t.i in intList)`