如何每20秒检查一次到达服务总线的消息

我使用的是azure的服务总线，它将保存我的消息列表，这意味着消息可以随时进入服务总线。

所以我想在我的服务总线上保持监视，以检查是否有消息在服务中。这就像我只想在我的服务总线上监视消息每隔0f 20秒到达我的服务总线。

在每20秒我想检查消息到达我的服务总线，这我想在后台异步执行。

我想在后台每隔20秒调用下面的方法:

 private static void ReceiveMessages()
        {
            // For PeekLock mode (default) where applications require "at least once" delivery of messages 
            SubscriptionClient agentSubscriptionClient = SubscriptionClient.Create(TopicName, "AgentSubscription");
            BrokeredMessage message = null;
            while (true)
            {
                try
                {
                    //receive messages from Agent Subscription
                    message = agentSubscriptionClient.Receive(TimeSpan.FromSeconds(5));
                    if (message != null)
                    {
                        Console.WriteLine("'nReceiving message from AgentSubscription...");
                        Console.WriteLine(string.Format("Message received: Id = {0}, Body = {1}", message.MessageId, message.GetBody<string>()));
                        // Further custom message processing could go here...
                        message.Complete();
                    }
                    else
                    {
                        //no more messages in the subscription
                        break;
                    }
                }
                catch (MessagingException e)
                {
                    if (!e.IsTransient)
                    {
                        Console.WriteLine(e.Message);
                        throw;
                    }
                    else
                    {
                        HandleTransientErrors(e);
                    }
                }
            }
            // For ReceiveAndDelete mode, where applications require "best effort" delivery of messages
            SubscriptionClient auditSubscriptionClient = SubscriptionClient.Create(TopicName, "AuditSubscription", ReceiveMode.ReceiveAndDelete);
            while (true)
            {
                try
                {
                    message = auditSubscriptionClient.Receive(TimeSpan.FromSeconds(5));
                    if (message != null)
                    {
                        Console.WriteLine("'nReceiving message from AuditSubscription...");
                        Console.WriteLine(string.Format("Message received: Id = {0}, Body = {1}", message.MessageId, message.GetBody<string>()));
                        // Further custom message processing could go here...
                    }
                    else
                    {
                        Console.WriteLine("'nno more messages in the subscription");
                        //no more messages in the subscription
                        break;
                    }
                }
                catch (MessagingException e)
                {
                    if (!e.IsTransient)
                    {
                        Console.WriteLine(e.Message);
                        throw;
                    }
                }
            }
            agentSubscriptionClient.Close();
            auditSubscriptionClient.Close();
        }

有谁能告诉我如何每隔20秒调用上面的方法吗?

private void wait_Tick(object sender, EventArgs e)
{
    refreshText(); //add the method you want to call here.
}

private Timer timer1; 
public void InitTimer()
{
    timer1 = new Timer();
    timer1.Tick += new EventHandler(timer1_Tick);
    timer1.Interval = 2000; // in miliseconds
    timer1.Start();
}
private void timer1_Tick(object sender, EventArgs e)
{
    isonline()
}