Angular Autocomplete Properties
An object defining configuration options for the Autocomplete widget.
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.
dataSource
A data source used to fetch data the widget should display.
This option accepts one of the following:
Array
A JavaScript array that contains string, numeric, Boolean values, or plain objects.URL
The URL of a JSON file or service that returns JSON data.DataSource or its configuration object
The DataSource is an object that provides an API for data processing. The DataSource's underlying data access logic is isolated in a store. Refer to the Data Layer and DataSource Examples guides for more information about the DataSource.
If the data source contains objects, specify the key in the store and/or a data field providing values in the widget.
.
, ,
, :
, [
, and ]
. Their presence may cause issues in the widget's operation.If the data source is specified using the dataSource option, use the items option only for reading. Updating data items using the items option may cause unexpected results.
See Also
- key in ArrayStore | CustomStore | LocalStore | ODataStore
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.
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 Control
@(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.
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
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%"
,"auto"
,"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 Control
@(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" } }) )
isValid
Specifies whether the editor's value is valid.
In Knockout apps, you may need to inform a user about an error that occurred during the validation of a view model field. For this purpose, set the editor's isValid option to the isValid value of the dxValidator that validates this field. To show an error message, set the editor's validationError option to the dxValidator's validationError value.
var editorValue = ko.observable("").extend({ dxValidator: { validationRules: [{ type: "required", message: "Specify this value" }] } }); var viewModel = { editorOptions: { value: editorValue, isValid: editorValue.dxValidator.isValid, validationError: editorValue.dxValidator.validationError } };
The editor's isValid and validationError options should also be specified when using a custom validation engine. In this instance, the validation result will be displayed for the editor by the means of the DevExtreme Validation UI.
See Also
items
An array of items displayed by the widget.
Array<any>
You can use the dataSource option instead. Unlike the items option, the dataSource option can take on the DataSource configuration object as well as a simple array.
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 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 content has been 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 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 handler execution. It is a dxEvent or a jQuery.Event when you use jQuery. |
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. |
|
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 handler execution. It is a dxEvent or a jQuery.Event when you use jQuery. |
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. |
|
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 handler execution. It is a dxEvent or a jQuery.Event when you use jQuery. |
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. |
|
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 handler execution. It is a dxEvent or a jQuery.Event when you use jQuery. |
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. |
|
model |
The model data. Available only if Knockout is used. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
component |
The widget's instance. |
|
event | Event (jQuery or EventObject) |
The event that caused the handler execution. It is a dxEvent or a jQuery.Event when you use jQuery. |
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. |
|
model |
The model data. Available only if Knockout is used. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
component |
The widget's instance. |
|
event | Event (jQuery or EventObject) |
The event that caused the handler execution. It is a dxEvent or a jQuery.Event when you use jQuery. |
onInitialized
A function that is executed only once, after the widget is initialized.
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. |
You cannot access widget elements in this function because it is executed before they are ready. Use the onContentReady function instead.
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. |
|
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 handler execution. It is a dxEvent or a jQuery.Event when you use jQuery. |
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. |
|
model |
The model data. Available only if Knockout is used. |
|
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 }. |
event | Event (jQuery or EventObject) |
The event that caused the handler execution. It is a dxEvent or a jQuery.Event when you use jQuery. |
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. |
|
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 handler execution. It is a dxEvent or a jQuery.Event when you use jQuery. |
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. |
|
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 handler execution. It is a dxEvent or a jQuery.Event when you use jQuery. |
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. |
|
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 handler execution. It is a dxEvent or a jQuery.Event when you use jQuery. |
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 |
---|---|---|
name |
The option's short name. |
|
model |
The model data. Available only if you use Knockout. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
component |
The widget's instance. |
|
fullName |
The option's full name. |
|
value | any |
The 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. |
|
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 handler execution. It is a dxEvent or a jQuery.Event when you use jQuery. |
onSelectionChanged
A function that is executed when a list item is selected or the 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 |
---|---|---|
event | Event (jQuery or EventObject) |
The event that caused the handler execution. 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. |
|
previousValue |
The widget's previous value. |
|
value |
The widget's new value. |
|
model |
The model data. Available only if Knockout is used. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
component |
The widget's instance. |
placeholder
The text displayed by the widget when the widget value is empty.
readOnly
A Boolean value specifying whether or not the widget is read-only.
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 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 to show the drop-down button.
See Also
spellcheck
Specifies whether or not the widget checks the inner text for spelling mistakes.
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 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 the widget's value. When this option is not set, the value is the entire data object.
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.