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HTMLFieldSetElement - Web API 接口参考编辑

HTML Field Set Element

DOM fieldset elements expose the HTMLFieldSetElement (HTML 4 HTMLFieldSetElement) interface, which provides special properties and methods (beyond the regular element object interface they also have available to them by inheritance) for manipulating the layout and presentation of field-set elements.

属性

以下属性除了 form 都是在 HTML5 中新添加的.

名称	类型	描述
`disabled`	`Boolean`	读取HTML属性 `disabled`,表明用户是否可以操作该控件.
`elements`	`readonly HTMLFormControlsCollection`	The elements belonging to this field set.
`form`	`readonly HTMLFormElement`	The containing form element, if this element is in a form. Otherwise, the element the name content attribute points to HTML5. (`null` in HTML 4.)
`name`	`DOMString`	Reflects the `name` HTML attribute, containing the name of the field set, used for submitting the form.
`type`	`readonly DOMString`	一定为字符串`fieldset`.
`validationMessage`	`readonly DOMString`	A localized message that describes the validation constraints that the element does not satisfy (if any). This is the empty string if the element is not a candidate for constraint validation (willValidate is false), or it satisfies its constraints.
`validity`	`readonly ValidityState`	The validity states that this element is in.
`willValidate`	`boolean`	Always false because `fieldset` objects are never candidates for constraint validation.

方法

名称 & 参数	返回值	描述
`checkValidity`()	`Boolean`	如果元素的值没有有效性问题,则返`回true`,否则返回`false`并触发`invalid`事件.
`setCustomValidity(in`DOMString`error)`	`void`	设置一个自定义错误,则该元素将无法通过有效性验证.参数指定的字符串就是在向用户报告错误时显示的消息.如果为空字符串,则清除这个自定义错误.