Angular Autocomplete Properties
An object defining configuration options for the Autocomplete widget.
See Also
- Configure a Widget: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
accessKey
Specifies the shortcut key that sets focus on the widget.
The value of this option will be passed to the accesskey
attribute of the HTML element that underlies the widget.
activeStateEnabled
Specifies whether or not the widget changes its state when interacting with a user.
This option is used when the widget is displayed on a platform whose guidelines include the active state change for widgets.
buttons[]
Allows you to add custom buttons to the input text field.
Built-in buttons should also be declared in this array. You can find an example in the following demo:
dataSource
Binds the widget to data.
If you use DevExtreme ASP.NET MVC Controls, refer to the Bind Controls to Data article.
The Autocomplete works with collections of objects or string
, number
, or boolean
values.
Depending on your data source, bind the Autocomplete to data as follows. In each case, also specify the valueExpr, displayExpr, or both if the data source provides objects.
Data Array
Assign the array to the dataSource option.Read-Only Data in JSON Format
Set the dataSource option to the URL of a JSON file or service that returns JSON data.OData
Implement an ODataStore.Web API, PHP, MongoDB
Use one of the following extensions to enable the server to process data according to the protocol DevExtreme widgets use:Then, use the createStore method to configure access to the server on the client as shown below. This method is part of DevExtreme.AspNet.Data.
jQuery
JavaScript$(function() { let serviceUrl = "https://url/to/my/service"; $("#autocompleteContainer").dxAutocomplete({ // ... dataSource: DevExpress.data.AspNet.createStore({ key: "ID", loadUrl: serviceUrl + "/GetAction", insertUrl: serviceUrl + "/InsertAction", updateUrl: serviceUrl + "/UpdateAction", deleteUrl: serviceUrl + "/DeleteAction" }) }) });
Angular
app.component.tsapp.component.htmlapp.module.tsimport { Component } from '@angular/core'; import CustomStore from 'devextreme/data/custom_store'; import { createStore } from 'devextreme-aspnet-data-nojquery'; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { store: CustomStore; constructor() { let serviceUrl = "https://url/to/my/service"; this.store = createStore({ key: "ID", loadUrl: serviceUrl + "/GetAction", insertUrl: serviceUrl + "/InsertAction", updateUrl: serviceUrl + "/UpdateAction", deleteUrl: serviceUrl + "/DeleteAction" }) } }
<dx-autocomplete ... [dataSource]="store"> </dx-autocomplete>
import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { AppComponent } from './app.component'; import { DxAutocompleteModule } from 'devextreme-angular'; @NgModule({ declarations: [ AppComponent ], imports: [ BrowserModule, DxAutocompleteModule ], providers: [], bootstrap: [AppComponent] }) export class AppModule { }
Vue
App.vue<template> <DxAutocomplete ... :data-source="store" /> </template> <script> import 'devextreme/dist/css/dx.common.css'; import 'devextreme/dist/css/dx.light.css'; import CustomStore from 'devextreme/data/custom_store'; import { createStore } from 'devextreme-aspnet-data-nojquery'; import { DxAutocomplete } from 'devextreme-vue/autocomplete'; export default { components: { DxAutocomplete }, data() { const serviceUrl = "https://url/to/my/service"; const store = createStore({ key: "ID", loadUrl: serviceUrl + "/GetAction", insertUrl: serviceUrl + "/InsertAction", updateUrl: serviceUrl + "/UpdateAction", deleteUrl: serviceUrl + "/DeleteAction" }); return { store } } } </script>
React
App.jsimport React from 'react'; import 'devextreme/dist/css/dx.common.css'; import 'devextreme/dist/css/dx.light.css'; import CustomStore from 'devextreme/data/custom_store'; import { createStore } from 'devextreme-aspnet-data-nojquery'; import Autocomplete from 'devextreme-react/autocomplete'; const serviceUrl = "https://url/to/my/service"; const store = createStore({ key: "ID", loadUrl: serviceUrl + "/GetAction", insertUrl: serviceUrl + "/InsertAction", updateUrl: serviceUrl + "/UpdateAction", deleteUrl: serviceUrl + "/DeleteAction" }); class App extends React.Component { render() { return ( <Autocomplete ... dataSource={store} /> ); } } export default App;
Any other data source
Implement a CustomStore.
Regardless of the data source on the input, the Autocomplete always wraps it in the DataSource object. This object allows you to sort, filter, group, and otherwise shape data. To get its instance, call the getDataSource() method.
Please review the following notes about data binding:
Do not specify the items option if you specified the dataSource, and vice versa.
Data field names should not contain the following characters:
.
,,
,:
,[
, and]
.DataSource and stores provide methods to process and update data. However, the methods do not allow you to perform particular tasks (for example, replace the entire dataset, reconfigure data access at runtime). For such tasks, create a new array, store, or DataSource and assign it to the dataSource option as shown in the articles about changing options in jQuery, Angular, React, and Vue.
deferRendering
Specifies whether to render the drop-down field's content when it is displayed. If false, the content is rendered immediately.
displayValue
Returns the value currently displayed by the widget.
The value you pass to this option does not affect widget behavior. Pass an observable variable to this option to get the value currently displayed by the widget.
dropDownButtonComponent
An alias for the dropDownButtonTemplate option specified in React. Accepts a custom component. Refer to Using a Custom Component for more information.
dropDownButtonRender
An alias for the dropDownButtonTemplate option 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.
jQuery
$(function(){ $("#autocompleteContainer").dxAutocomplete({ // ... elementAttr: { id: "elementId", class: "class-name" } }); });
Angular
<dx-autocomplete ... [elementAttr]="{ id: 'elementId', class: 'class-name' }"> </dx-autocomplete>
import { DxAutocompleteModule } from "devextreme-angular"; // ... export class AppComponent { // ... } @NgModule({ imports: [ // ... DxAutocompleteModule ], // ... })
ASP.NET MVC Controls
@(Html.DevExtreme().Autocomplete() .ElementAttr("class", "class-name") // ===== or ===== .ElementAttr(new { @id = "elementId", @class = "class-name" }) // ===== or ===== .ElementAttr(new Dictionary<string, object>() { { "id", "elementId" }, { "class", "class-name" } }) )
@(Html.DevExtreme().Autocomplete() _ .ElementAttr("class", "class-name") ' ===== or ===== .ElementAttr(New With { .id = "elementId", .class = "class-name" }) ' ===== or ===== .ElementAttr(New Dictionary(Of String, Object) From { { "id", "elementId" }, { "class", "class-name" } }) )
focusStateEnabled
Specifies whether the widget can be focused using keyboard navigation.
groupComponent
An alias for the groupTemplate option specified in React. Accepts a custom component. Refer to Using a Custom Component for more information.
grouped
Specifies whether data items should be grouped.
When this option is true, make sure that all data source objects have the following structure:
var dataSource = [{ key: "Group 1", // Group caption items: [ // Items in the group { ... }, { ... } ] }, { // ... }];
You can supply data to this structure using the DataSource object's group option.
See Also
groupRender
An alias for the groupTemplate option specified in React. Accepts a rendering function. Refer to Using a Rendering Function for more information.
height
Specifies the widget's height.
This option accepts a value of one of the following types:
Number
The height in pixels.String
A CSS-accepted measurement of height. For example,"55px"
,"80%"
,"inherit"
.Function
A function returning either of the above. For example:JavaScriptheight: function() { return window.innerHeight / 1.5; }
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.
jQuery
$(function(){ $("#autocompleteContainer").dxAutocomplete({ // ... inputAttr: { id: "inputId" } }); });
Angular
<dx-autocomplete ... [inputAttr]="{ id: 'inputId' }"> </dx-autocomplete>
import { DxAutocompleteModule } from "devextreme-angular"; // ... export class AppComponent { // ... } @NgModule({ imports: [ // ... DxAutocompleteModule ], // ... })
ASP.NET MVC Controls
@(Html.DevExtreme().Autocomplete() .InputAttr("id", "inputId") // ===== or ===== .InputAttr(new { @id = "inputId" }) // ===== or ===== .InputAttr(new Dictionary<string, object>() { { "id", "inputId" } }) )
@(Html.DevExtreme().Autocomplete() _ .InputAttr("id", "inputId") ' ===== or ===== .InputAttr(New With { .id = "inputId" }) ' ===== or ===== .InputAttr(New Dictionary(Of String, Object) From { { "id", "inputId" } }) )
itemComponent
An alias for the itemTemplate option specified in React. Accepts a custom component. Refer to Using a Custom Component for more information.
itemRender
An alias for the itemTemplate option 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.
If you need to update the widget items, reassign the entire items[] array as shown in the following example:
autocompleteInstance.option('items', newItems);
As an alternative to items, you can use the dataSource option. It accepts the DataSource object, whose underlying stores provide an API that allows you to update individual items without reassigning the entire item collection.
Particular fields in objects can control the widget's appearance. See Default Templates for more information.
maxLength
Specifies the maximum number of characters you can enter into the textbox.
If the number of entered characters reaches the value assigned to this option, the widget does not allow you to enter any more characters.
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 name
attribute of the underlying HTML element.
Specify this option if the widget lies within an HTML form that will be submitted.
If you configure the widget as an ASP.NET MVC 5 Control or a DevExtreme-Based ASP.NET Core Control, use this option to bind the widget to a model property. If this model property contains Data Annotation validation attributes, you get the client-side validation enabled by default.
onChange
A function that is executed when the widget loses focus after the text field's content was changed using the keyboard.
Information about the event.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
event | Event (jQuery or EventObject) |
The event that caused the function to execute. It is a dxEvent or a jQuery.Event when you use jQuery. |
jQueryEvent |
Use 'event' instead. The jQuery event that caused the handler execution. Deprecated in favor of the event field. |
|
model |
The model data. Available only if Knockout is used. |
onClosed
A function that is executed once the drop-down editor is closed.
Information about the event.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
model |
The model data. Available only if Knockout is used. |
onContentReady
A function that is executed when the widget's content is ready and each time the content is changed.
Information about the event.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
model |
The model data. Available only when using Knockout. |
If data displayed by the widget is specified using a DataSource instance, the contentReady event fires each time the load() method of the DataSource instance is called as well as when widget content is ready. In this case, when you create the widget, the contentReady event is raised twice: when the widget's content is ready (at this moment, the widget does not display items) and when the DataSource is loaded (the widget displays the loaded items).
onCopy
A function that is executed when the widget's input has been copied.
Information about the event.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
event | Event (jQuery or EventObject) |
The event that caused the function to execute. It is a dxEvent or a jQuery.Event when you use jQuery. |
jQueryEvent |
Use 'event' instead. The jQuery event that caused the handler execution. Deprecated in favor of the event field. |
|
model |
The model data. Available only if Knockout is used. |
onCut
A function that is executed when the widget's input has been cut.
Information about the event.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
event | Event (jQuery or EventObject) |
The event that caused the function to execute. It is a dxEvent or a jQuery.Event when you use jQuery. |
jQueryEvent |
Use 'event' instead. The jQuery event that caused the handler execution. Deprecated in favor of the event field. |
|
model |
The model data. Available only if Knockout is used. |
onDisposing
A function that is executed before the widget is disposed of.
Information about the event.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
model |
The model data. Available only if you use Knockout. |
onEnterKey
A function that is executed when the Enter key has been pressed while the widget is focused.
Information about the event.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
event | Event (jQuery or EventObject) |
The event that caused the function to execute. It is a dxEvent or a jQuery.Event when you use jQuery. |
jQueryEvent |
Use 'event' instead. The jQuery event that caused the handler execution. Deprecated in favor of the event field. |
|
model |
The model data. Available only if Knockout is used. |
onFocusIn
A function that is executed when the widget gets focus.
Information about the event.
Name | Type | Description |
---|---|---|
jQueryEvent |
Use 'event' instead. The jQuery event that caused the handler execution. Deprecated in favor of the event field. |
|
event | Event (jQuery or EventObject) |
The event that caused the function to execute. It is a dxEvent or a jQuery.Event when you use jQuery. |
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
component |
The widget's instance. |
|
model |
The model data. Available only if Knockout is used. |
onFocusOut
A function that is executed when the widget loses focus.
Information about the event.
Name | Type | Description |
---|---|---|
jQueryEvent |
Use 'event' instead. The jQuery event that caused the handler execution. Deprecated in favor of the event field. |
|
event | Event (jQuery or EventObject) |
The event that caused the function to execute. It is a dxEvent or a jQuery.Event when you use jQuery. |
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
component |
The widget's instance. |
|
model |
The model data. Available only if Knockout is used. |
onInitialized
A function used in JavaScript frameworks to save the widget instance.
Information about the event.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
onInput
A function that is executed each time the widget's input is changed while the widget is focused.
Information about the event.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
event | Event (jQuery or EventObject) |
The event that caused the function to execute. It is a dxEvent or a jQuery.Event when you use jQuery. |
jQueryEvent |
Use 'event' instead. The jQuery event that caused the handler execution. Deprecated in favor of the event field. |
|
model |
The model data. Available only if Knockout is used. |
onItemClick
A function that is executed when a list item is clicked or tapped.
Information about the event.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
event | Event (jQuery or EventObject) |
The event that caused the function to execute. It is a dxEvent or a jQuery.Event when you use jQuery. |
itemData |
The clicked item's data. |
|
itemElement |
The item's container. |
|
itemIndex | | |
The clicked item's index. If the widget items are grouped, the index represents an object defining the group and item indexes: { group: 0, item: 0 }. |
model |
The model data. Available only if Knockout is used. |
onKeyDown
A function that is executed when a user is pressing a key on the keyboard.
Information about the event.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
event | Event (jQuery or EventObject) |
The event that caused the function to execute. It is a dxEvent or a jQuery.Event when you use jQuery. |
jQueryEvent |
Use 'event' instead. The jQuery event that caused the handler execution. Deprecated in favor of the event field. |
|
model |
The model data. Available only if Knockout is used. |
onKeyPress
A function that is executed when a user presses a key on the keyboard.
Information about the event.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
event | Event (jQuery or EventObject) |
The event that caused the function to execute. It is a dxEvent or a jQuery.Event when you use jQuery. |
jQueryEvent |
Use 'event' instead. The jQuery event that caused the handler execution. Deprecated in favor of the event field. |
|
model |
The model data. Available only if Knockout is used. |
keyPress
event is removed from the web standards and will be deprecated in modern browsers soon. Refer to the MDN topic for details.onKeyUp
A function that is executed when a user releases a key on the keyboard.
Information about the event.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
event | Event (jQuery or EventObject) |
The event that caused the function to execute. It is a dxEvent or a jQuery.Event when you use jQuery. |
jQueryEvent |
Use 'event' instead. The jQuery event that caused the handler execution. Deprecated in favor of the event field. |
|
model |
The model data. Available only if Knockout is used. |
onOpened
A function that is executed once the drop-down editor is opened.
Information about the event.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
model |
The model data. Available only if Knockout is used. |
onOptionChanged
A function that is executed after a widget option is changed.
Information about the event.
Name | Type | Description |
---|---|---|
model |
The model data. Available only if you use Knockout. |
|
fullName |
The path to the modified option that includes all parent options. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
component |
The widget's instance. |
|
name |
The modified option if it belongs to the first level. Otherwise, the first-level option it is nested into. |
|
value | any |
The modified option's new value. |
onPaste
A function that is executed when the widget's input has been pasted.
Information about the event.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
event | Event (jQuery or EventObject) |
The event that caused the function to execute. It is a dxEvent or a jQuery.Event when you use jQuery. |
jQueryEvent |
Use 'event' instead. The jQuery event that caused the handler execution. Deprecated in favor of the event field. |
|
model |
The model data. Available only if Knockout is used. |
onSelectionChanged
A function that is executed when a list item is selected or selection is canceled.
Information about the event.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
model |
The model data. Available only if Knockout is used. |
|
selectedItem |
The selected item's data. |
onValueChanged
A function that is executed after the widget's value is changed.
Information about the event.
Name | Type | Description |
---|---|---|
value |
The widget's new value. |
|
previousValue |
The widget's previous value. |
|
model |
The model data. Available only if Knockout is used. |
|
jQueryEvent |
Use 'event' instead. The jQuery event that caused the handler execution. Deprecated in favor of the event field. |
|
event | Event (jQuery or EventObject) |
The event that caused the function to execute. It is a dxEvent or a jQuery.Event when you use jQuery. |
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
component |
The widget's instance. |
openOnFieldClick
Specifies whether a user can open the drop-down list by clicking a text field.
See Also
placeholder
The text displayed by the widget when the widget value is empty.
readOnly
Specifies whether the editor is read-only.
When this option is set to true, the following applies:
- The editor's value cannot be changed using the UI.
- Built-in action buttons are invisible.
Custom action buttons are visible but disabled. If a button should not be disabled, set its disabled option to false:
jQuery
index.js$(function() { $("#autocompleteContainer").dxAutocomplete({ // ... buttons: [{ name: "myCustomButton", location: "after", options: { onClick: function(e) { // ... }, disabled: false } }] }); });
Angular
app.component.htmlapp.component.tsapp.module.ts<dx-autocomplete ... > <dxi-button name="myCustomButton" location="after" [options]="myCustomButtonConfig"> </dxi-button> </dx-autocomplete>
import { Component } from '@angular/core'; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { myCustomButtonConfig = { onClick: (e) => { // ... }, disabled: false }; }
import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { AppComponent } from './app.component'; import { DxAutocompleteModule } from 'devextreme-angular'; @NgModule({ declarations: [ AppComponent ], imports: [ BrowserModule, DxAutocompleteModule ], providers: [ ], bootstrap: [AppComponent] }) export class AppModule { }
Vue
App.vue<template> <DxAutocomplete ... > <DxAutocompleteButton name="myCustomButton" location="after" :options="myCustomButtonConfig" /> </DxAutocomplete> </template> <script> import 'devextreme/dist/css/dx.common.css'; import 'devextreme/dist/css/dx.light.css'; import DxAutocomplete, { DxButton as DxAutocompleteButton } from 'devextreme-vue/autocomplete'; export default { components: { DxAutocomplete, DxAutocompleteButton }, data() { return { myCustomButtonConfig: { onClick: (e) => { // ... }, disabled: false } } } } </script>
React
App.jsimport React from 'react'; import 'devextreme/dist/css/dx.common.css'; import 'devextreme/dist/css/dx.light.css'; import Autocomplete, { Button as AutocompleteButton } from 'devextreme-react/autocomplete'; class App extends React.Component { myCustomButtonConfig = { onClick: (e) => { // ... }, disabled: false }; render() { return ( <Autocomplete> <AutocompleteButton name="myCustomButton" location="after" options={this.myCustomButtonConfig} /> </Autocomplete> ); } } export default App;
You can also hide a custom action button when the widget becomes read-only. Set the button's visible option to false in the onOptionChanged function. To get the button, use the getButton(name) method:
jQuery
index.js$(function() { $("#autocompleteContainer").dxAutocomplete({ // ... buttons: [{ name: "myCustomButton", // ... }], onOptionChanged: function(e) { if(e.name == "readOnly") { var myButton = e.component.getButton("myCustomButton"); myButton.option("visible", !e.value); // Hide the button when readOnly: true } } }); });
Angular
app.component.htmlapp.component.tsapp.module.ts<dx-autocomplete ... (onOptionChanged)="changeButtonState"> <dxi-button name="myCustomButton" ... ></dxi-button> </dx-autocomplete>
import { Component } from '@angular/core'; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { changeButtonState(e) { if(e.name == 'readOnly') { let myButton = e.component.getButton('myCustomButton'); myButton.option('visible', !e.value); // Hide the button when readOnly: true } } }
import { BrowserModule } from '@angular/platform-browser'; import { NgModule } from '@angular/core'; import { AppComponent } from './app.component'; import { DxAutocompleteModule } from 'devextreme-angular'; @NgModule({ declarations: [ AppComponent ], imports: [ BrowserModule, DxAutocompleteModule ], providers: [ ], bootstrap: [AppComponent] }) export class AppModule { }
Vue
App.vue<template> <DxAutocomplete ... @option-changed="changeButtonState"> <DxAutocompleteButton name="myCustomButton" ... /> </DxAutocomplete> </template> <script> import 'devextreme/dist/css/dx.common.css'; import 'devextreme/dist/css/dx.light.css'; import DxAutocomplete, { DxButton as DxAutocompleteButton } from 'devextreme-vue/autocomplete'; export default { components: { DxAutocomplete, DxAutocompleteButton }, data() { return { // ... } }, methods: { changeButtonState(e) { if(e.name == 'readOnly') { let myButton = e.component.getButton('myCustomButton'); myButton.option('visible', !e.value); // Hide the button when readOnly: true } } } } </script>
React
App.jsimport React from 'react'; import 'devextreme/dist/css/dx.common.css'; import 'devextreme/dist/css/dx.light.css'; import Autocomplete, { Button as AutocompleteButton } from 'devextreme-react/autocomplete'; class App extends React.Component { changeButtonState(e) { if(e.name == 'readOnly') { let myButton = e.component.getButton('myCustomButton'); myButton.option('visible', !e.value); // Hide the button when readOnly: true } } render() { return ( <Autocomplete ... onOptionChanged={this.changeButtonState}> <AutocompleteButton name="myCustomButton" ... /> </Autocomplete> ); } } export default App;
rtlEnabled
Switches the widget to a right-to-left representation.
When this option is set to true, the widget text flows from right to left, and the layout of elements is reversed. To switch the entire application/site to the right-to-left representation, assign true to the rtlEnabled field of the object passed to the DevExpress.config(config) method.
DevExpress.config({ rtlEnabled: true });
See Also
- Right-to-Left Support Demo: DataGrid | Navigation Widgets | Editors
searchExpr
Specifies the name of a data source item field or an expression whose value is compared to the search criterion.
In most cases, you should pass the name of a field by whose value data items are searched. If you need to search elements by several field values, assign an array of field names to this option.
searchExpr: ["firstName", "lastName"]
For more information on searching, refer to the Search API section of the Data Layer article. For information on getters, refer to the Getters and Setters section of the Data Layer article.
searchMode
Specifies a comparison operation used to search widget items.
Use the DropDownSearchMode
enum to specify this option when the widget is used as an ASP.NET MVC 5 Control or a DevExtreme-Based ASP.NET Core Control. This enum accepts the following values: Contains
and StartsWith
.
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.
The Clear button sets the widget value to null.
showDropDownButton
Specifies whether the drop-down button is visible.
See Also
spellcheck
Specifies whether or not the widget checks the inner text for spelling mistakes.
stylingMode
Specifies how the widget's text field is styled.
The following styles are available:
Use the EditorStylingMode
enum to specify this option when the widget is used as an ASP.NET MVC 5 Control or a DevExtreme-Based ASP.NET Core Control. This enum accepts the following values: Outlined
, Underlined
, and Filled
.
You can also use the global editorStylingMode setting to specify how the text fields of all editors in your application are styled.
tabIndex
Specifies the number of the element when the Tab key is used for navigating.
The value of this option will be passed to the tabindex
attribute of the HTML element that underlies the widget.
text
The read-only option that holds the text displayed by the widget input element.
validationError
Specifies information on the validation error when using a custom validation engine. Should be changed at runtime along with the isValid option.
See Also
validationMessageMode
Specifies how the message about the validation rules that are not satisfied by this editor's value is displayed.
The following option values are possible:
- auto
The tooltip with the message is displayed when the editor is in focus. - always
The tooltip with the message is not hidden when the editor loses focus.
Use the ValidationMessageMode
enum to specify this option when the widget is used as an ASP.NET MVC 5 Control or a DevExtreme-Based ASP.NET Core Control. This enum accepts the following values: Auto
and Always
.
value
Specifies the current value displayed by the widget.
If autocomplete items represent objects, the value option returns the value of the specified field of the currently selected item object. The field whose value is returned by the value option is specified by using the valueExpr option.
valueChangeEvent
Specifies the DOM events after which the widget's value should be updated.
This option accepts a single event name or several names separated by spaces.
The recommended events are "keyup", "blur", "change", and "focusout", but you can use other events as well.
valueExpr
Specifies which data field provides unique values to the widget's value.
The current item's data object.
Always set this option if the dataSource contains objects. Alternatively, you can specify the key in the store.
See Also
width
Specifies the widget's width.
This option accepts a value of one of the following types:
Number
The width in pixels.String
A CSS-accepted measurement of width. For example,"55px"
,"80%"
,"auto"
,"inherit"
.Function
A function returning either of the above. For example:JavaScriptwidth: function() { return window.innerWidth / 1.5; }
If you have technical questions, please create a support ticket in the DevExpress Support Center.