JavaScript/jQuery Autocomplete API
The Autocomplete widget is a textbox that provides suggestions while a user types into it.
See Also
- Set Up DevExtreme: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
- Configure a Widget: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
Options
An object defining configuration options for the Autocomplete widget.
| Name | Description | 
|---|---|
| accessKey | Specifies the shortcut key that sets focus on the widget. | 
| activeStateEnabled | Specifies whether or not the widget changes its state when interacting with a user. | 
| buttons | Allows you to add custom buttons to the input text field. | 
| dataSource | Binds the widget to data. | 
| deferRendering | Specifies whether to render the drop-down field's content when it is displayed. If false, the content is rendered immediately. | 
| disabled | Specifies whether the widget responds to user interaction. | 
| displayValue | Returns the value currently displayed by the widget. | 
| dropDownButtonComponent | An alias for the dropDownButtonTemplate property specified in React. Accepts a custom component. Refer to Using a Custom Component for more information. | 
| dropDownButtonRender | An alias for the dropDownButtonTemplate property specified in React. Accepts a rendering function. Refer to Using a Rendering Function for more information. | 
| dropDownButtonTemplate | Specifies a custom template for the drop-down button. | 
| elementAttr | Specifies the attributes to be attached to the widget's root element. | 
| focusStateEnabled | Specifies whether the widget can be focused using keyboard navigation. | 
| groupComponent | An alias for the groupTemplate property specified in React. Accepts a custom component. Refer to Using a Custom Component for more information. | 
| grouped | Specifies whether data items should be grouped. | 
| groupRender | An alias for the groupTemplate property specified in React. Accepts a rendering function. Refer to Using a Rendering Function for more information. | 
| groupTemplate | Specifies a custom template for group captions. | 
| height | Specifies the widget's height. | 
| hint | Specifies text for a hint that appears when a user pauses on the widget. | 
| hoverStateEnabled | Specifies whether the widget changes its state when a user pauses on it. | 
| inputAttr | Specifies the attributes to be passed on to the underlying HTML element. | 
| isValid | Specifies or indicates whether the editor's value is valid. | 
| itemComponent | An alias for the itemTemplate property specified in React. Accepts a custom component. Refer to Using a Custom Component for more information. | 
| itemRender | An alias for the itemTemplate property specified in React. Accepts a rendering function. Refer to Using a Rendering Function for more information. | 
| items | An array of items displayed by the widget. | 
| itemTemplate | Specifies a custom template for items. | 
| maxItemCount | Specifies the maximum count of items displayed by the widget. | 
| maxLength | Specifies the maximum number of characters you can enter into the textbox. | 
| minSearchLength | The minimum number of characters that must be entered into the text box to begin a search. | 
| name | The value to be assigned to the  | 
| onChange | A function that is executed when the widget loses focus after the text field's content was changed using the keyboard. | 
| onClosed | A function that is executed once the drop-down editor is closed. | 
| onContentReady | A function that is executed when the widget's content is ready and each time the content is changed. | 
| onCopy | A function that is executed when the widget's input has been copied. | 
| onCut | A function that is executed when the widget's input has been cut. | 
| onDisposing | A function that is executed before the widget is disposed of. | 
| onEnterKey | A function that is executed when the Enter key has been pressed while the widget is focused. | 
| onFocusIn | A function that is executed when the widget gets focus. | 
| onFocusOut | A function that is executed when the widget loses focus. | 
| onInitialized | A function used in JavaScript frameworks to save the widget instance. | 
| onInput | A function that is executed each time the widget's input is changed while the widget is focused. | 
| onItemClick | A function that is executed when a list item is clicked or tapped. | 
| onKeyDown | A function that is executed when a user is pressing a key on the keyboard. | 
| onKeyPress | A function that is executed when a user presses a key on the keyboard. | 
| onKeyUp | A function that is executed when a user releases a key on the keyboard. | 
| onOpened | A function that is executed once the drop-down editor is opened. | 
| onOptionChanged | A function that is executed after a widget option is changed. | 
| onPaste | A function that is executed when the widget's input has been pasted. | 
| onSelectionChanged | A function that is executed when a list item is selected or selection is canceled. | 
| onValueChanged | A function that is executed after the widget's value is changed. | 
| opened | Specifies whether or not the drop-down editor is displayed. | 
| openOnFieldClick | Specifies whether a user can open the drop-down list by clicking a text field. | 
| placeholder | The text displayed by the widget when the widget value is empty. | 
| readOnly | Specifies whether the editor is read-only. | 
| rtlEnabled | Switches the widget to a right-to-left representation. | 
| searchExpr | Specifies the name of a data source item field or an expression whose value is compared to the search criterion. | 
| searchMode | Specifies a comparison operation used to search widget items. | 
| searchTimeout | Specifies the time delay, in milliseconds, after the last character has been typed in, before a search is executed. | 
| selectedItem | Gets the currently selected item. | 
| showClearButton | Specifies whether to display the Clear button in the widget. | 
| showDropDownButton | Specifies whether the drop-down button is visible. | 
| spellcheck | Specifies whether or not the widget checks the inner text for spelling mistakes. | 
| stylingMode | Specifies how the widget's text field is styled. | 
| tabIndex | Specifies the number of the element when the Tab key is used for navigating. | 
| text | The read-only option that holds the text displayed by the widget input element. | 
| validationError | Information on the broken validation rule. Contains the first item from the validationErrors array. | 
| validationErrors | An array of the validation rules that failed. | 
| validationMessageMode | Specifies how the message about the validation rules that are not satisfied by this editor's value is displayed. | 
| validationStatus | Indicates or specifies the current validation status. | 
| value | Specifies the current value displayed by the widget. | 
| valueChangeEvent | Specifies the DOM events after which the widget's value should be updated. | 
| valueExpr | Specifies which data field provides unique values to the widget's value. | 
| visible | Specifies whether the widget is visible. | 
| width | Specifies the widget's width. | 
| wrapItemText | Specifies whether text that exceeds the drop-down list width should be wrapped. | 
See Also
- Configure a Widget: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
Methods
This section describes the members used to manipulate the widget.
| Name | Description | 
|---|---|
| beginUpdate() | Prevents the widget from refreshing until the endUpdate() method is called. | 
| blur() | Removes focus from the input element. | 
| content() | Gets the popup window's content. | 
| defaultOptions(rule) | Specifies the device-dependent default configuration options for this component. | 
| dispose() | Disposes of all the resources allocated to the Autocomplete instance. | 
| element() | Gets the root widget element. | 
| endUpdate() | Refreshes the widget after a call of the beginUpdate() method. | 
| field() | Gets the widget's  | 
| focus() | Sets focus to the input element representing the widget. | 
| getButton(name) | Gets an instance of a custom action button. | 
| getDataSource() | Gets the DataSource instance. | 
| getInstance(element) | Gets the instance of a widget found using its DOM node. | 
| instance() | Gets the widget's instance. Use it to access other methods of the widget. | 
| off(eventName) | Detaches all event handlers from a single event. | 
| off(eventName, eventHandler) | Detaches a particular event handler from a single event. | 
| on(eventName, eventHandler) | Subscribes to an event. | 
| on(events) | Subscribes to events. | 
| option() | Gets all widget options. | 
| option(optionName) | Gets the value of a single option. | 
| option(optionName, optionValue) | Updates the value of a single option. | 
| option(options) | Updates the values of several options. | 
| registerKeyHandler(key, handler) | Registers a handler to be executed when a user presses a specific key. | 
| repaint() | Repaints the widget without reloading data. Call it to update the widget's markup. | 
| reset() | Resets the value option to the default value. | 
| resetOption(optionName) | Resets an option to its default value. | 
See Also
- Call Methods: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
Events
This section describes events fired by this widget.
| Name | Description | 
|---|---|
| change | Raised when the widget loses focus after the text field's content was changed using the keyboard. | 
| closed | Raised once the drop-down editor is closed. | 
| contentReady | Raised when the widget's content is ready. | 
| copy | Raised when the widget's input has been copied. | 
| cut | Raised when the widget's input has been cut. | 
| disposing | Raised before the widget is disposed of. | 
| enterKey | Raised when the Enter key has been pressed while the widget is focused. | 
| focusIn | Raised when the widget gets focus. | 
| focusOut | Raised when the widget loses focus. | 
| initialized | Raised only once, after the widget is initialized. | 
| input | Raised each time the widget's input is changed while the widget is focused. | 
| itemClick | Raised when a list item is clicked or tapped. | 
| keyDown | Raised when a user is pressing a key on the keyboard. | 
| keyPress | Raised when a user presses a key on the keyboard. | 
| keyUp | Raised when a user releases a key on the keyboard. | 
| opened | Raised once the drop-down editor is opened. | 
| optionChanged | Raised after a widget option is changed. | 
| paste | Raised when the widget's input has been pasted. | 
| selectionChanged | Raised when a list item is selected or selection is canceled. | 
| valueChanged | Raised after the widget's value is changed. | 
See Also
- Handle Events: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
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