required property
@DocsEditable(), @DomName('HTMLSelectElement.required'), read / write
Implementation
bool required
SelectElement class
- Constructors
- SelectElement
- created
- Properties
- autofocus
- disabled
- form
- labels
- length
- multiple
- name
- options
- required
- selectedIndex
- selectedOptions
- size
- type
- validationMessage
- validity
- value
- willValidate
- accessibleNode
- assignedSlot
- attributes
- baseUri
- borderEdge
- childNodes
- children
- classes
- className
- client
- clientHeight
- clientLeft
- clientTop
- clientWidth
- computedName
- computedRole
- contentEdge
- contentEditable
- dataset
- dir
- documentOffset
- draggable
- firstChild
- hashCode
- hidden
- id
- inert
- innerHtml
- inputMode
- isConnected
- isContentEditable
- lang
- lastChild
- localName
- marginEdge
- namespaceUri
- nextElementSibling
- nextNode
- nodeName
- nodes
- nodeType
- nodeValue
- nonce
- offset
- offsetHeight
- offsetLeft
- offsetParent
- offsetTop
- offsetWidth
- on
- onAbort
- onBeforeCopy
- onBeforeCut
- onBeforePaste
- onBlur
- onCanPlay
- onCanPlayThrough
- onChange
- onClick
- onContextMenu
- onCopy
- onCut
- onDoubleClick
- onDrag
- onDragEnd
- onDragEnter
- onDragLeave
- onDragOver
- onDragStart
- onDrop
- onDurationChange
- onEmptied
- onEnded
- onError
- onFocus
- onFullscreenChange
- onFullscreenError
- onInput
- onInvalid
- onKeyDown
- onKeyPress
- onKeyUp
- onLoad
- onLoadedData
- onLoadedMetadata
- onMouseDown
- onMouseEnter
- onMouseLeave
- onMouseMove
- onMouseOut
- onMouseOver
- onMouseUp
- onMouseWheel
- onPaste
- onPause
- onPlay
- onPlaying
- onRateChange
- onReset
- onResize
- onScroll
- onSearch
- onSeeked
- onSeeking
- onSelect
- onSelectStart
- onStalled
- onSubmit
- onSuspend
- onTimeUpdate
- onTouchCancel
- onTouchEnd
- onTouchEnter
- onTouchLeave
- onTouchMove
- onTouchStart
- onTransitionEnd
- onVolumeChange
- onWaiting
- onWheel
- outerHtml
- ownerDocument
- paddingEdge
- parent
- parentNode
- previousElementSibling
- previousNode
- runtimeType
- scrollHeight
- scrollLeft
- scrollTop
- scrollWidth
- shadowRoot
- slot
- spellcheck
- style
- styleMap
- tabIndex
- tagName
- text
- title
- translate
- Methods
- add
- checkValidity
- item
- namedItem
- reportValidity
- setCustomValidity
- addEventListener
- after
- animate
- append
- appendHtml
- appendText
- attached
- attachShadow
- attributeChanged
- before
- blur
- click
- clone
- closest
- contains
- createFragment
- createShadowRoot
- detached
- dispatchEvent
- enteredView
- focus
- getAnimations
- getAttribute
- getAttributeNames
- getAttributeNS
- getBoundingClientRect
- getClientRects
- getComputedStyle
- getDestinationInsertionPoints
- getElementsByClassName
- getNamespacedAttributes
- getRootNode
- hasChildNodes
- hasPointerCapture
- insertAdjacentElement
- insertAdjacentHtml
- insertAdjacentText
- insertAllBefore
- insertBefore
- leftView
- matches
- matchesWithAncestors
- noSuchMethod
- offsetTo
- querySelector
- querySelectorAll
- releasePointerCapture
- remove
- removeEventListener
- replaceWith
- requestFullscreen
- requestPointerLock
- scroll
- scrollBy
- scrollIntoView
- scrollTo
- setApplyScroll
- setAttribute
- setAttributeNS
- setDistributeScroll
- setInnerHtml
- setPointerCapture
- toString
- Operators
- operator ==