Get Youtube Channel Subscribers list in ASP.Net

Hi

I have below code. I am trying thru API. How it can be done thru OAuth 2.0. I am trying to get My Channel Subscribers list.

            using (var yt = new YouTubeService(new BaseClientService.Initializer()
            {
                ApiKey = "API Key",
            }))
            {
                StringBuilder htmlTable = new StringBuilder();

                var searchRequest = yt.Subscriptions.List("subscriberSnippet");
                searchRequest.ChannelId = "Channel Id";
                searchRequest.MySubscribers = true;
                var searchResponse = searchRequest.Execute();
                var objResult = searchResponse.Items.ToList();
            }

Thanks