增加终身元素EWS流认购 [英] Increasing the Lifetime element for EWS Streaming Subscription Connection

问题描述

使用微软的EWS，我们能够聆听到一个邮箱，并在新的电子邮件进来采取行动，但我无法弄清楚如何避免连接超时。

Using Microsoft's EWS, we're able to listen to a mailbox and take actions when a new email comes in. However, I can't figure out how to avoid the connection timing out.

每微软，这里是一个StreamingSubscriptionConnection的构造：

Per Microsoft, here is the constructor for a StreamingSubscriptionConnection:

public StreamingSubscriptionConnection (
    ExchangeService service,
    int lifetime
)

在我的应用程序，我编写它如下：

In my app, I've coded it as follows:

service = new ExchangeService(ExchangeVersion.Exchange2010_SP1);
StreamingSubscriptionConnection conn = new StreamingSubscriptionConnection(service, 30);

在换句话说，我得设置为30分钟超时（寿命），因为这是最高我已经能够进行设置。我怎样才能提高呢？或者说，我怎么可以欺骗这个订阅到活着，哪怕〜45分钟传入电子邮件之间发生吗？

In other words, I've got the timeout (lifetime) set to 30 minutes, because that's the highest I've been able to set it. How can I increase this? Or, how can I trick this subscription into staying alive, even if ~45 minutes transpire between incoming emails?

推荐答案

30分钟硬限制。你无法将其更改为更高的价值。

30 minutes is a hard limit. You can not change it to a higher value.

为了解决这个问题，电线了一个处理程序来连接实例的OnDisconnect事件的OnDisconnected处理程序。重新启动从那里订阅（只是调用从处理器connection.Open（））。

To solve this issue, wire up a handler to the OnDisconnected handler of the OnDisconnect event of the connection instance. Restart the subscription from there (just call connection.Open() from that handler).

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