C#: How do you implement the adapter pattern?

1public interface ITarget
2{
3    string GetResult();
4}
5
6public class LegacyService
7{
8    public string GetData() => "legacy data";
9}
10
11public class ServiceAdapter : ITarget
12{
13    private readonly LegacyService _service;
14
15    public ServiceAdapter(LegacyService service) =>
16        _service = service;
17
18    public string GetResult() => _service.GetData();
19}