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。
To use a custom validator you must add it to the form, passing it field elements on which the validation needs to be applied, as shown in Listing 14.
要使用定制验证器，必须将其添加到表单，并为它传递需要被验证的那些字段元素，如清单 14 所示。
To use a custom validator you must add it to the form, passing it field elements on which the validation needs to be applied, as shown in Listing 14.
要使用定制验证器，必须将其添加到表单，并为它传递需要被验证的那些字段元素，如清单 14 所示。
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