读取并验证表单的字段值。
使用标准JSF验证组件验证表单字段数据。
Usage of standard JSF validation components for validating form field data.
实现一些正则表达式来适当地验证表单字段条目。
Implement some regular expressions to properly validate form field entries.
很多业务应用程序都有基于业务规则验证表单字段的要求。
Many business-line applications have requirements to validate form fields based on business rules. Each business rule is unique, but the following are a few examples of business validation rules.
此uddi服务站点没有配置为支持请求的身份验证表单。
This UDDI Services site is not configured to support the requested form of authentication.
在这种情况中，您可以填充一个子类清单，而不用验证表单的其他内容。
In this case, it lets you populate a subcategory list without validating the rest of the form.
此UDDI服务站点没有配置为接受请求的身份验证表单。
This UDDI Services site is not configured to accept the requested form of authentication.
当在伺服器上验证表单时，验证错误可以显示在控制项旁边。
When the form is validated on the server, validation errors can be displayed next to the controls.
无论您是需要验证表单输入，还是需要分解内容，使用正则表达式都非常有用。
Whether you need to validate form input or decompose content, regular expressions can do the trick.
在任何web应用程序中，您即可以在客户端也可以在服务器端验证表单字段。
You can validate the form fields at both the client side and server side as in any Web application.
因此，Validator List的execute方法可以验证整个表单，也可只验证表单中的某个元素。
Therefore, the execute method of ValidatorList can be used to validate a whole form or just an element of the form.
从功能性观点考虑，您或许希望编写一个测试：填入表单值，单击Submit按钮，然后验证表单是否显示定义。
From a functional standpoint, you'd probably want to write a test to fill in the form value, click the Submit button, and then verify the presence of the definition under the form.
可以自动检查一个用户名或电子邮件地址是否已经不再使用，验证表单而无需刷新页面，甚至提交表单并动态显示一个结果。
You could automatically check that a user name or email address is not already in use, validate the form without refreshing the page, or even submit the form and display a result dynamically.
如果你依照Rails的惯例，将会有令人惊艳的成果，从路由request对应到正确的controller和view，到验证表单资料和显示错误讯息，都可以直接运作。
If you follow the Rails conventions, an amazing amount of stuff, from routing requests to the correct controller and view, to validating form data and displaying error messages, just works.
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。
It provides a standardized way to perform tasks like form validation, calculations, and conditional output.
验证每个HTML表单字段并按前述要求准备此对。
Validate each and every HTML form field and prepare the pair as said.
在设计CMS过程中，我们在表单验证上花费了大量的时间。
In the process of designing a CMS, we spent a lot of time perfecting form validation.
为了防止提交错误数据，我们还要向该页面添加表单验证。
To prevent erroneous data from being submitted, we are going to add form validation to this page.
使用这种技术，您可以在允许提交表单之前执行定制验证逻辑，或者在表单提交之后触发一个定制事件。
Using this technique, you could execute custom validation logic before allowing the form to be submitted, or you could trigger a custom event after the form is submitted.
如果你以前曾经手工实现过表单验证，你会认为这三行代码很有价值。
If you've ever implemented forms authentication by hand, you'll appreciate these three lines of code.
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。
Provide form validation: Input validation is one of the biggest headaches for both developers and users.
服务器字段验证器 —向HTML表单字段添加服务器端验证。
Server field validator—adds server-side validation to HTML form fields.
用户完成数据处理以后，用户提交表单，最后验证完成。
Once the user has completed their data handling, the user submits the form and final validation occurs.
这一特性将使表单验证获得可观的广泛应用。
This feature should make forms authentication considerably more widely implemented.
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。
After the forms data is submitted, the forms data is validated according to the validation criteria built into the form.
您可以用这个validate方法来验证您表单中的字段。
The validate method can be used to validate the fields in your form.
本节将展示如何向Web表单添加验证。
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）。
Testing the form validation can also be done in the unit test (Listing 19 shows the form validation test code).
FormValidation——我们将在GWT 2.2中仔细考虑表单验证api。
Form validation - We will take a closer look at the form validation API in GWT 2.2.
一个轻量的表单验证库。
LiveValidation is a lightweight library that equips you with set of validation functions.
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