Select all that apply. which of the following combobox methods require a boolean argument?

The above example shows typical <select> usage. It is given an id attribute to enable it to be associated with a <label> for accessibility purposes, as well as a name attribute to represent the name of the associated data point submitted to the server. Each menu option is defined by an <option> element nested inside the <select>.

Each <option> element should have a value attribute containing the data value to submit to the server when that option is selected. If no value attribute is included, the value defaults to the text contained inside the element. You can include a selected attribute on an <option> element to make it selected by default when the page first loads.

The <select> element has some unique attributes you can use to control it, such as multiple to specify whether multiple options can be selected, and size to specify how many options should be shown at once. It also accepts most of the general form input attributes such as required, disabled, autofocus, etc.

You can further nest <option> elements inside <optgroup> elements to create separate groups of options inside the dropdown.

For further examples, see The native form widgets: Drop-down content.

  • DropDown
    • ComboBox
      • MultiSelect
      • Menu
      • InputTime
      • AutoComplete
      • WjComboBox
  • new ComboBox(element: any, options?: any): ComboBox
  • Overrides DropDown.constructor

autoExpandSelection: boolean

Inherited from DropDown.autoExpandSelection

caseSensitiveSearch: boolean

Inherited from DropDown.clickAction

collectionView: ICollectionView

displayMemberPath: string

dropDown: HTMLElement

Inherited from DropDown.dropDown

dropDownCssClass: string

Inherited from DropDown.dropDownCssClass

handleWheel: boolean

headerPath: string | null

hostElement: HTMLElement

Inherited from Control.hostElement

inputElement: HTMLInputElement

Inherited from DropDown.inputElement

inputType: string

Inherited from DropDown.inputType

isAnimated: boolean

Inherited from DropDown.isAnimated

isContentHtml: boolean

isDisabled: boolean

Inherited from Control.isDisabled

isDroppedDown: boolean

Inherited from DropDown.isDroppedDown

isEditable: boolean

isReadOnly: boolean

Inherited from DropDown.isReadOnly

isRequired: boolean

Inherited from DropDown.isRequired

isTouching: boolean

Inherited from Control.isTouching

isUpdating: boolean

Inherited from Control.isUpdating

itemFormatter: IItemFormatter

itemsSource: any

maxDropDownHeight: number

maxDropDownWidth: number

placeholder: string

Inherited from DropDown.placeholder

rightToLeft: boolean

Inherited from Control.rightToLeft

selectedIndex: number

selectedItem: any

selectedValue: any

selectedValuePath: string

showDropDownButton: boolean

Inherited from DropDown.showDropDownButton

showGroups: boolean

tabOrder: number

Inherited from Control.tabOrder

text: string | null

Inherited from DropDown.text

trimText: boolean

virtualizationThreshold: number

controlTemplate: string

Inherited from DropDown.controlTemplate

  • addEventListener(target: EventTarget, type: string, fn: any, capture?: boolean, passive?: boolean): void
  • Inherited from Control.addEventListener

  • applyTemplate(classNames: string, template: string, parts: Object, namePart?: string): HTMLElement
  • Inherited from Control.applyTemplate

  • Inherited from Control.beginUpdate

  • Inherited from Control.containsFocus

  • deferUpdate(fn: Function): void
  • Inherited from Control.deferUpdate

  • Inherited from Control.endUpdate

  • Inherited from Control.focus

  • getDisplayText(index?: number, trimText?: boolean): string
  • Inherited from Control.getTemplate

  • hasOwnProperty(v: PropertyKey): boolean
  • Inherited from Object.hasOwnProperty

  • indexOf(search: string, fullMatch: boolean): number
  • The index of the item, or -1 if not found.

  • initialize(options: any): void
  • Inherited from Control.initialize

  • invalidate(fullUpdate?: boolean): void
  • Inherited from Control.invalidate

  • isPrototypeOf(v: Object): boolean
  • Inherited from Object.isPrototypeOf

  • onInvalidInput(e: CancelEventArgs): boolean
  • Inherited from Control.onInvalidInput

  • onItemsSourceChanged(e?: EventArgs): void
  • onRefreshed(e?: EventArgs): void
  • Inherited from Control.onRefreshed

  • onRefreshing(e?: EventArgs): void
  • Inherited from Control.onRefreshing

  • onSelectedIndexChanged(e?: EventArgs): void
  • onTextChanged(e?: EventArgs): void
  • Inherited from DropDown.onTextChanged

  • propertyIsEnumerable(v: PropertyKey): boolean
  • Inherited from Object.propertyIsEnumerable

  • removeEventListener(target?: EventTarget, type?: string, fn?: any, capture?: boolean): number
  • Inherited from Control.removeEventListener

    The number of listeners removed.

  • Inherited from DropDown.selectAll

  • Inherited from Object.toLocaleString

  • Inherited from Object.toString

  • Inherited from Object.valueOf

  • disposeAll(e?: HTMLElement): void
  • Inherited from Control.disposeAll

  • getControl(element: any): Control
  • Inherited from Control.getControl

  • invalidateAll(e?: HTMLElement): void
  • Inherited from Control.invalidateAll

  • refreshAll(e?: HTMLElement): void
  • Inherited from Control.refreshAll

formatItem: Event<ListBox, FormatItemEventArgs>

gotFocus: Event<Control, EventArgs>

Inherited from Control.gotFocus

invalidInput: Event<Control, CancelEventArgs>

Inherited from Control.invalidInput

isDroppedDownChanged: Event<DropDown, EventArgs>

Inherited from DropDown.isDroppedDownChanged

isDroppedDownChanging: Event<DropDown, CancelEventArgs>

Inherited from DropDown.isDroppedDownChanging

itemsSourceChanged: Event<ComboBox, EventArgs>

lostFocus: Event<Control, EventArgs>

Inherited from Control.lostFocus

refreshed: Event<Control, EventArgs>

Inherited from Control.refreshed

refreshing: Event<Control, EventArgs>

Inherited from Control.refreshing

selectedIndexChanged: Event<ComboBox, EventArgs>

textChanged: Event<DropDown, EventArgs>

Inherited from DropDown.textChanged