Web Form Validation: Best Practices and tutorials.
Web表单确认：最佳实例和教程。
Form validation - We will take a closer look at the form validation API in GWT 2.2.
Form Validation——我们将在GWT 2.2中仔细考虑表单验证api。
In the process of designing a CMS, we spent a lot of time perfecting form validation.
在设计CMS过程中，我们在表单验证上花费了大量的时间。
To prevent erroneous data from being submitted, we are going to add form validation to this page.
为了防止提交错误数据，我们还要向该页面添加表单验证。
When clicking the submit button, a specific form validation is performed through ApplicationUtil.
单击提交按钮时，将通过ApplicationUtil执行一个特定的表单验证。
Form validation is a simple example of how to begin to use Ajax within an existing J2EE application.
表单验证展示了如何在现有J2EE应用程序开始使用Ajax。
Provide form validation: Input validation is one of the biggest headaches for both developers and users.
提供表单验证：输入验证是开发人员和用户都十分头痛的问题。
It provides a standardized way to perform tasks like form validation, calculations, and conditional output.
它提供了标准化的方式用于执行各种任务，如表单验证、计算和条件输出。
Testing the form validation can also be done in the unit test (Listing 19 shows the form validation test code).
表单验证的测试也可以在单元测试中完成（清单19展示了表单验证的测试代码）。
When done correctly, Ajax form validation can vastly improve your user experience and make your code more efficient and maintainable.
若能正确处理，Ajax表单验证可极大地改进用户体验并能让代码变得更为有效、可维护性更好。
Some of the GWT projects currently under development are: data-backed widgets, collapsible panels, logging, form validation, sounds and graphics.
目前处于开发中的GWT项目有：以数据为中心的widget、可折叠的面板、日志、表单验证、声音以及图形。
The required attribute is used during form validation (more on that below) and the autofocus attribute lets you pick the element on the page too get focus.
required属性用于表单验证(下面将详细介绍)过程中，autofocus属性允许选择页面上的元素以获取焦点。
These tests measure your browser's performance in typical text manipulations such as using a profanity filter for chats, browser detection and form validation.
这些测试是考量你的浏览器在典型文本操作中的表现，主要包括在聊天中运用脏话过滤器，浏览器检测和表单验证。
These include the web application deployment descriptor (web.xml), the struts configuration file (struts-config.xml), and the struts form validation XML file (validation.xml).
它们包括web应用程序部署描述符(web .xml)、struts配置文件(struts - config .xml)和struts表单验证xml文件(validation . xml)。
So, the second method is almost always combined with the first, by checking the fields in instantaneous and then doing a batch validation before the form is submitted.
所以，第二种方法几乎总是和第一种方法结合在一起，先对域进行瞬时检查，然后在表单被提交之前执行批处理确认。
You will make some changes to the three files in the following sections, to complete the form, add user inputs validation methods and process the validation errors.
在接下来的几节中，您将对这三个文件进行一些修改，从而完成整个表单，添加用户输入的验证方法并处理验证错误。
A common action on the form is validation to ensure the content the user is entering is in an accepted format.
表单上的一个常见行为是进行验证以确保用户正输入的内容的格式是一种可接受的格式。
Finally, you learned how to handle form data, providing server-side validation based on form input.
最后，您学习了如何处理表单数据，提供基于表单输入的服务器端验证。
Server field validator—adds server-side validation to HTML form fields.
服务器字段验证器 —向HTML表单字段添加服务器端验证。
After the forms data is submitted, the forms data is validated according to the validation criteria built into the form.
表单数据提交后，根据内置到表单的验证标准对表单数据进行验证。
However, this form of validation occurs after other forms of validation (standard, custom, component).
不过，这种形式的验证是在其他形式的验证(标准、自定义、组件)之后发生的。
You should make each different arithmetic function its own action/method/whatevertheframeworkcallsit and you should use the frameworks input validation for the form values (if it has one).
你需要为每一种运算设置单独的动作，或者说方法（每个框架的叫法不一样），而且还要用到框架中的表单验证功能（如果框架提供了这一功能的话）。
These tags handle input validation before the form is saved.
这些标签负责在保存表单之前对输入信息进行有效性验证。
Utilizing the required attribute is a form of default validation.
利用required属性是一种默认验证形式。
Default validation of form fields.
表单字段的默认验证。
<html:errors /> will reflect all the validation errors in this form.
<html:errors/> 则会反映这个表单中所有的验证错误。
Usage of standard JSF validation components for validating form field data.
使用标准JSF验证组件验证表单字段数据。
Listing 5 has the input validation rules for the form in Listing 4.
清单5为清单4中的表单提供了输入验证规则。
This section shows how to add validation to the Web form.
本节将展示如何向Web表单添加验证。
However, GWT-Ext supports several components and features not available in MyGWT, such as DatePickers, explicit form and validation functionality, and drag-and-drop support in trees.
但是，GWT - Ext另外支持一些MyGWT中没有的组件跟特性，比如DatePickers、显性表单和验证功能、以及树型结构中的drag - and - drop。
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