在回发期间，Seam自动检测该配对。
默认情况下，如果窗体不包含操作属性，浏览器将会回发。
Browsers, by default, will postback if the form doesn't contain an action attribute.
用于打开或选择菜单项的回发事件。
获取表示当前回发的请求对象。
Gets the request object that represents the current postback.
等待三分钟，然后刷新页面，使回发事件发生。
Wait three minutes, and then refresh the page, causing a postback event to occur.
更糟的是，回发时情况会恶化，此时可能发生额外的冗余数据库调用。
Even worse, the situation continues to degrade upon postback, at which time additional redundant database calls may be made.
都提供了相应的方法来告知发送端点应该在传输回发通道不可用的情况下“缓存”消息。
Both provide a means to tell a sending endpoint that it should "buffer" messages when the transport back channel is not available.
请注意，虽然已更新缓存，但页面上显示的时间在回发事件发生之前仍将保持不变。
Note that although the cache is updated, the time displayed on the page does not change until a postback event occurs.
通过此模型，控件可在呈现期间注册其事件，然后在回发或回调期间验证这些事件。
With this model, a control registers its events during rendering and then validates the events during the post-back or callback handling.
NET移动控件，页适配器必须将该字符串保持到客户端，并确保它在后面的回发中可用。
NET mobile controls, the page adapter must persist this string to the client and ensure that it is available on a subsequent postback.
您很可能也会发现，如果您很精通asp.net，那么您大多数时候仍会继续使用标准的页面回发模型。
You will also likely find, if you are already well versed in ASP.NET, that you will continue to use the standard page postback model most often.
接收此消息的端点将随后可以使用传输特定的回发通道自由地发送以此URI为目标的任何消息。
The endpoint that receives this message would then be free to use the transport-specific back channel to send any message that is targeted to this URI.
此URI的第二个语义含义则是在原始传输特定回发通道不可用时发挥作用（例如，连接已断开时）。
The second semantic meaning of this URI applies when the original transport-specific back channel is not available (for example, the connection was broken).
这就允许此消息的发送方请求仅通过回发通道发送与指定的WS - RMSequence相关的消息。
This allows for the sender of this message to request that only messages related to the WS-RM Sequence specified be sent on the back channel.
因此，在您的ToDo - List应用程序中，您将一个新的项目列表作为对所有服务器请求的响应回发。
So, in your ToDo-list application, you send back a fresh list of items as a response to all server requests.
中文意思就是说获取一个值，该值指示该页是否正为响应客户端回发而加载，或者它是否正被首次加载和访问。
Gets a value indicating whether the page is being loaded in response to a client postback, or if it is being loaded and accessed for the first time.
在页生命周期的此阶段中，已声明控件和在初始化阶段创建的控件的视图状态信息和回发数据都被加载到页的控件中。
At this stage in the page's life cycle, view-state information and postback data for declared controls and controls created during the initialization stage are loaded into the page's controls.
本例的下一步不仅包括回发更新的项目列表，还包括提供状态信息，以使客户机了解服务器进行了怎样的操作，如以下代码清单所示。
The next step in this example is not only to send back the updated item list, but also to provide status information letting the client know what the server did as shown in the following code listing.
本例的下一步不仅包括回发更新的项目列表，还包括提供状态信息，以使客户机了解服务器进行了怎样的操作，如以下代码清单所示。
The next step in this example is not only to send back the updated item list, but also to provide status information letting the client know what the server did as shown in the following code listing.
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