R>    public class ExampleHub : Hub, ITransientDependency
R>{
R>        public override Task OnConnected()
R>        {
R>            Storage.ConnStr = WebConfigurationManager.ConnectionStrings["Default"].ConnectionString;
R>            SqlDependency.Start(Storage.ConnStr);
R>            Storage.Connection = new SqlConnection(Storage.ConnStr);
R>            Storage.Connection.Open();
R>            Storage.Command = new SqlCommand("SELECT [State] FROM [Test].[dbo].[State]", Storage.Connection);
R>            Storage.Dependency = new SqlDependency(Storage.Command);
R>            Storage.Dependency.OnChange += Dependency_OnChange;
R>            Storage.Command.ExecuteReader();
R>.......

R>        private void Dependency_OnChange(object sender, SqlNotificationEventArgs e)
R>        {

R>        }
R>......
R>    public static class Storage
R>    {
R>        public static bool IsEnabled;
R>        public static SqlConnection Connection;
R>        public static SqlCommand Command;
R>        public static SqlDependency Dependency;
R>        public static string ConnStr;
R>    }
R>