When the user takes action he causes an event.
当用户做出动作他就引发了一个事件。
Modal Windows are always triggered by a user action (e.g. signing up or logging in) and appear on top of the main content, like a window in a regular desktop application.
状态窗通常是被用户的动作所触发(如注册或登录)，并且出现于主内容之上，就像桌面应用中的一个窗口。
Any response to a user action that doesn't require a trip back to the server-such as simple data validation, editing data in memory, and even some navigation-the engine handles on its own.
任何关于用户动作的响应并不都需要传回服务器——比如简单的数据验证，在内存中修改数据，甚至包括一些导航——引擎能够自己处理这些。
Conditional preload - based on a user action you make an educated guess where the user is headed next and preload accordingly.
条件预加载-基于您进行有见地猜测下一步领导用户是一个用户操作，并据此预加载。
Creating a submission that a user can trigger is a two-step process: you must declare the submission and define its parameters, and then you must tie it to a user action.
创建用户能够触发的提交需要分两步：声明提交并定义其参数，将其连接到用户动作。
In this way, methods that are not needed until a subsequent user action occurs are delayed, thus speeding up the display of the initial page.
这样，将延迟当前用户不需要的方法，从而加快了首个页面的显示。
A dynamic association is the navigation between one screen and another as determined by a User action.
动态联系是由用户行为决定的两个screen间的导航。
Suppose you want a portlet to display content based on a user action.
假定您想要一个portlet来显示基于用户动作的内容。
Testing a user action such as clicking a link can be done using WicketTester's clickLink() method, passing it the link component ID path, and then verifying the rendered page, as shown in Listing 23.
测试诸如单击链接这样的用户动作可以通过使用WicketTester的clickLink()方法实现，只需为之传递链接组件ID路径，然后再验证所呈现的组件即可，如清单 23 所示。
It may require collecting information from a database, querying a Web service, or getting data from a previous user action.
这可能要求从数据库收集数据，或是通过查询Web服务或从用户先前的行动中获得数据。
Then, you can tie the submission to a control such as a button (a trigger in XForms), so that it will be initiated according to a particular user action.
然后可以将提交捆绑到一个按钮（XForms中的触发器），从而能够根据特定的用户动作来启动。
Normally, a Web login is not a problem, but since the underlining request to the server is occurring under the covers, there is no obvious user action to the login.
通常，Web登录并不是问题，但是由于对服务器的底层请求在幕后发生，所以没有明显的用户登录动作。
Each view controller receives the action every time the user performs an action on the view.
每当用户在视图上执行一个操作时，每一个视图控制器就会接收到这个操作。
The tag creates a trigger that, when clicked by the user, invokes the action defined within the tag.
标记创建这样的触发器：当用户单击时，该触发器会调用在标记内定义的操作。
These elements all have the potential to change what is displayed based on user action and choice without loading a new page from the server.
这些元素都可以根据用户的操作和选择改变显示的内容，而不需要从服务器装载新页面。
This is a departure from the usual practice of the Click and Wait paradigm, where the browser contacts the mid-tier server to download presentation content on each and every user action.
这就摈弃了传统的单击并等待范例；在传统范例中，对于每次用户操作，浏览器都会与中间层服务器进行通信来下载表示内容。
Note that multiple tags are allowed under the same, resulting in multiple database transactions per user action.
注意在同一下允许多个标签，会导致每用户操作出现多个数据库事务。
We describe how to create a plug-in that defines a custom user action, how to test the user action, and how to package your plug-in.
我们将说明如何创建定义自定义用户操作的插件、如何测试用户操作，以及如何对插件进行打包。
The events triggered by any user action are intercepted by the controller.
控制器截获任何由用户操作出发的事件；
The second argument specifies that the intended user action is to create the optimization profile table.
第二个参数表明目标用户操作是创建优化概要文件表。
In addition, the CLI provides different modes of operation to support everything from user-driven action to fully automated tasks.
此外，CLI提供了不同的操作模式，可以支持从用户驱动操作到完全自动化任务等各种行为。
A use case clearly describes how a specific user action initiates a named process to deliver a specific outcome to the user.
一个用例清楚地描述了一个被指定的用户是如何执行一个指定的过程，从而向用户交付指定的结果的。
There is nothing horribly wrong in this ad, it's just that it likely won't compel a user into action.
这个广告并没有什么可怕的错误，但它只是不大可能让用户采取行动。
On the other hand, if the portlet is wired by an administrator, then the data is exchanged automatically (no user action is necessary).
另一方面，如果管理员对Portlet进行了连接，则将自动交换数据(不需要用户操作)。
When covering usage patterns in this article, interactions are labeled, and they include discussion on the user action and resulting mashup response.
本文在论述使用模式时，都标记出了交互，并包括关于用户操作的讨论和产生的mashup响应。
For each user action, FlexMonkey captures a UI event, a property and value pair that identifies the target of the event, and event-specific arguments.
对于每一个用户操作，FlexMonkey会捕获一个UI事件，一个属性值对，用以标识事件的目标以及事件相关的参数。
Optimistic locking is still highly recommended for non-atomic Web flows to protect the data integrity of each user action.
对于非原子we b流还是强烈推荐使用乐观锁来保护每个用户操作的数据完整性。
Quite often, an atomic step in the process is a user action represented by a tag in the Web-flow definition.
通常，进程中的原子步骤是由We b流定义中的标签表示的一个用户操作。
In some cases, all three of these processing examples can be executed by the mashup in response to the user action.
在某些情况下，mashup在响应用户操作时，可能同时执行以上三种处理。
In some cases, all three of these processing examples can be executed by the mashup in response to the user action.
在某些情况下，mashup在响应用户操作时，可能同时执行以上三种处理。
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