Configuration

An object defining configuration options for the DropDownBox widget.

acceptCustomValue

Specifies whether the widget allows a user to enter a custom value.

Type:

Boolean

Default Value: false

accessKey

Specifies the shortcut key that sets focus on the widget.

Type:

String

Default Value: null

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.

Type:

Boolean

Default Value: true

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.

Type:

Array<String | dxTextEditorButton>

Default Value: undefined
Accepted Values: 'clear'|'dropDown'

contentTemplate

Specifies a custom template for the drop-down content.

Type:

template

Function parameters:
templateData:

Object

Data associated with the widget.

Object structure:
component:

DropDownBox

The widget's instance.

value: any

The currently selected value.

contentElement:

Element (jQuery or HTML)

The widget's content. It is an HTML Element or a jQuery Element when you use jQuery.

Return Value:

String

|

DOM Node

|

jQuery

A template name or container.

Default Value: null

dataSource

Binds the widget to data.

Default Value: null

If you use DevExtreme ASP.NET MVC Controls, refer to the Data Binding article.

The DropDownBox works with collections of objects or string, number, or boolean values.

Depending on your data source, bind the DropDownBox to data as follows. In each case, also specify the valueExpr and displayExpr options 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";
        $("#dropDownBoxContainer").dxDropDownBox({
            // ...
            dataSource: DevExpress.data.AspNet.createStore({
                key: "ID",
                loadUrl: serviceUrl + "/GetAction",
                insertUrl: serviceUrl + "/InsertAction",
                updateUrl: serviceUrl + "/UpdateAction",
                deleteUrl: serviceUrl + "/DeleteAction"
            })
        })
    });
    Angular
    app.component.ts
    app.component.html
    app.module.ts
    import { 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-drop-down-box ...
        [dataSource]="store">
    </dx-drop-down-box>
    import { BrowserModule } from '@angular/platform-browser';
    import { NgModule } from '@angular/core';
    import { AppComponent } from './app.component';
    
    import { DxDropDownBoxModule } from 'devextreme-angular';
    
    @NgModule({
        declarations: [
            AppComponent
        ],
        imports: [
            BrowserModule,
            DxDropDownBoxModule
        ],
        providers: [],
        bootstrap: [AppComponent]
    })
    export class AppModule { }
    Vue
    App.vue
    <template> 
        <dx-drop-down-box ...
            :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 { DxDropDownBox } from 'devextreme-vue/drop-down-box';
    
    export default {
        components: {
            DxDropDownBox
        },
        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.js
    import 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 DropDownBox from 'devextreme-react/drop-down-box';
    
    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 (
                <DropDownBox ...
                    dataSource={store} />
            );
        }
    }
    export default App;
  • Any other data source
    Implement a CustomStore.

Regardless of the data source on the input, the DropDownBox 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.

If the element embedded in the DropDownBox widget is another DevExtreme widget, their data sources should be interrelated. Refer to the Synchronize with the Embedded Element article for more information.

NOTE

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.

Type:

Boolean

Default Value: true

disabled

Specifies whether the widget responds to user interaction.

Type:

Boolean

Default Value: false

displayExpr

Specifies the data field whose values should be displayed.

Type:

String

|

Function

Function parameters:
item:

Object

The current item's data object.

Default Value: undefined

Set this option to the name of a data field that provides displayed values...

displayExpr: "name"

... or to a function that returns the displayed value:

displayExpr: function(item) {
    // "item" can be null
    return item && 'ID: ' + item.id + ', Name: ' + item.name;
}

Leave this option unspecified or set it to this if the data source contains primitives.

See Also

dropDownButtonTemplate

Specifies a custom template for the drop-down button.

Type:

template

Function parameters:
buttonData:

Object

Information about the button.

Object structure:
text:

String

The button's text.

icon:

String

The button's icon.

contentElement:

Element (jQuery or HTML)

The button's container. It is an HTML Element or a jQuery Element when you use jQuery.

Return Value:

String

|

DOM Node

|

jQuery

A template name or container.

Default Value: 'dropDownButton'

dropDownOptions

Configures the drop-down field which holds the content.

Default Value: {}

See Popup Configuration for options that you can specify in this object.

NOTE
The fields of a configuration object passed to this option do not support two-way binding in Angular, AngularJS, and Knockout and event bindings in Angular.

elementAttr

Specifies the attributes to be attached to the widget's root element.

Type:

Object

Default Value: {}
jQuery
$(function(){
    $("#dropDownBoxContainer").dxDropDownBox({
        // ...
        elementAttr: {
            id: "elementId",
            class: "class-name"
        }
    });
});
Angular
HTML
TypeScript
<dx-drop-down-box ...
    [elementAttr]="{ id: 'elementId', class: 'class-name' }">
</dx-drop-down-box>
import { DxDropDownBoxModule } from "devextreme-angular";
// ...
export class AppComponent {
    // ...
}
@NgModule({
    imports: [
        // ...
        DxDropDownBoxModule
    ],
    // ...
})
ASP.NET MVC Control
Razor C#
Razor VB
@(Html.DevExtreme().DropDownBox()
    .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().DropDownBox() _
    .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" }
    })
)

fieldTemplate

Specifies a custom template for the text field. Must contain the TextBox widget.

Type:

template

Function parameters:
value:

Object

Selected values.

fieldElement:

Element (jQuery or HTML)

The current field's container. It is an HTML Element or a jQuery Element when you use jQuery.

Return Value:

String

|

DOM Node

|

jQuery

A template name or container.

Default Value: null

In the following code, the fieldTemplate is used to stylize the text field with a custom CSS class:

jQuery
JavaScript
CSS
$(function () {
    $("dropDownBoxContainer").dxDropDownBox({
        // ...
        fieldTemplate: function (value, fieldElement) {
            var result = $("<div class='custom-item'>");
            result
                .dxTextBox({
                    value: value,
                    readOnly: true 
                });
            fieldElement.append(result);
        }
    });
});
.custom-item {
    font-size: 16px;
}
Angular
HTML
CSS
<dx-drop-down-box ...
    fieldTemplate="field">
    <div *dxTemplate="let data of 'field'">
        <div class="custom-item">
            <dx-text-box 
                [value]="data" 
                [readOnly]="true"
            ></dx-text-box>
        </div>
    </div>
</dx-drop-down-box>
.custom-item {
    font-size: 16px;
}
AngularJS
HTML
CSS
<div dx-drop-down-box="{
    ...
    fieldTemplate: 'field'
}" dx-item-alias="data">
    <div data-options="dxTemplate: { name: 'field' }">
        <div class="custom-item">
            <div dx-text-box="{ value: data, readOnly: true }"></div>
        </div>
    </div>
</div>
.custom-item {
    font-size: 16px;
}
Knockout
HTML
CSS
<div data-bind="dxDropDownBox: {
    ...
    fieldTemplate: 'field'
}">
    <div data-options="dxTemplate: { name: 'field' }">
        <div class="custom-item">
            <div data-bind="dxTextBox: { value: $data, readOnly: true }"></div>
        </div>
    </div>
</div>
.custom-item {
    font-size: 16px;
}
See Also

focusStateEnabled

Specifies whether the widget can be focused using keyboard navigation.

Type:

Boolean

Default Value: true

height

Specifies the widget's height.

Type:

Number

|

String

|

Function

Return Value:

Number

|

String

The widget's height.

Default Value: undefined

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:

    JavaScript
    height: function() {
        return window.innerHeight / 1.5;
    }

hint

Specifies text for a hint that appears when a user pauses on the widget.

Type:

String

Default Value: undefined

hoverStateEnabled

Specifies whether the widget changes its state when a user pauses on it.

Type:

Boolean

Default Value: true

inputAttr

Specifies the attributes to be passed on to the underlying HTML element.

Type:

Object

Default Value: {}
jQuery
$(function(){
    $("#dropDownBoxContainer").dxDropDownBox({
        // ...
        inputAttr: {
            id: "inputId"
        }
    });
});
Angular
HTML
TypeScript
<dx-drop-down-box ...
    [inputAttr]="{ id: 'inputId' }">
</dx-drop-down-box>
import { DxDropDownBoxModule } from "devextreme-angular";
// ...
export class AppComponent {
    // ...
}
@NgModule({
    imports: [
        // ...
        DxDropDownBoxModule
    ],
    // ...
})
ASP.NET MVC Control
Razor C#
Razor VB
@(Html.DevExtreme().DropDownBox()
    .InputAttr("id", "inputId")
    // ===== or =====
    .InputAttr(new {
        @id = "inputId"
    })
    // ===== or =====
    .InputAttr(new Dictionary<string, object>() {
        { "id", "inputId" }
    })
)
@(Html.DevExtreme().DropDownBox() _
    .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.

Type:

Boolean

Default Value: true

items

An array of items displayed by the widget.

Type:

Array<template | Object>

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.

NOTE
If you need to modify the data source specified using the items option at runtime, do it only with the help of the items option. Updating data items using the dataSource option may cause unexpected results.

maxLength

Specifies the maximum number of characters you can enter into the textbox.

Type:

String

|

Number

Default Value: null

If the number of entered characters reaches the value assigned to this option, the widget does not allow you to enter any more characters.

name

The value to be assigned to the name attribute of the underlying HTML element.

Type:

String

Default Value: ''

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 text field's content was changed using the keyboard.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
component:

DropDownBox

The widget's instance.

element:

Element (jQuery or HTML)

The widget's container. It is an HTML Element or a jQuery Element when you use jQuery.

model:

Object

The model data. Available only if Knockout is used.

jQueryEvent:

jQuery.Event

Use 'event' instead.

The jQuery event that caused the handler execution. Deprecated in favor of the event field.

event:

Event (jQuery or dxEvent)

The event that caused the handler execution. It is a dxEvent or a jQuery.Event when you use jQuery.

Default Value: null

onClosed

A function that is executed once the drop-down editor is closed.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
component:

DropDownBox

The widget's instance.

element:

Element (jQuery or HTML)

The widget's container. It is an HTML Element or a jQuery Element when you use jQuery.

model:

Object

The model data. Available only if Knockout is used.

Default Value: null

onCopy

A function that is executed when the widget's input has been copied.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
component:

DropDownBox

The widget's instance.

element:

Element (jQuery or HTML)

The widget's container. It is an HTML Element or a jQuery Element when you use jQuery.

model:

Object

The model data. Available only if Knockout is used.

jQueryEvent:

jQuery.Event

Use 'event' instead.

The jQuery event that caused the handler execution. Deprecated in favor of the event field.

event:

Event (jQuery or dxEvent)

The event that caused the handler execution. It is a dxEvent or a jQuery.Event when you use jQuery.

Default Value: null

onCut

A function that is executed when the widget's input has been cut.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
component:

DropDownBox

The widget's instance.

element:

Element (jQuery or HTML)

The widget's container. It is an HTML Element or a jQuery Element when you use jQuery.

model:

Object

The model data. Available only if Knockout is used.

jQueryEvent:

jQuery.Event

Use 'event' instead.

The jQuery event that caused the handler execution. Deprecated in favor of the event field.

event:

Event (jQuery or dxEvent)

The event that caused the handler execution. It is a dxEvent or a jQuery.Event when you use jQuery.

Default Value: null

onDisposing

A function that is executed before the widget is disposed of.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
component:

DropDownBox

The widget's instance.

element:

Element (jQuery or HTML)

The widget's container. It is an HTML Element or a jQuery Element when you use jQuery.

model:

Object

The model data. Available only if you use Knockout.

Default Value: null

onEnterKey

A function that is executed when the Enter key has been pressed while the widget is focused.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
component:

DropDownBox

The widget's instance.

element:

Element (jQuery or HTML)

The widget's container. It is an HTML Element or a jQuery Element when you use jQuery.

model:

Object

The model data. Available only if Knockout is used.

jQueryEvent:

jQuery.Event

Use 'event' instead.

The jQuery event that caused the handler execution. Deprecated in favor of the event field.

event:

Event (jQuery or dxEvent)

The event that caused the handler execution. It is a dxEvent or a jQuery.Event when you use jQuery.

Default Value: null

onFocusIn

A function that is executed when the widget gets focus.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
component:

DropDownBox

The widget's instance.

element:

Element (jQuery or HTML)

The widget's container. It is an HTML Element or a jQuery Element when you use jQuery.

model:

Object

The model data. Available only if Knockout is used.

jQueryEvent:

jQuery.Event

Use 'event' instead.

The jQuery event that caused the handler execution. Deprecated in favor of the event field.

event:

Event (jQuery or dxEvent)

The event that caused the handler execution. It is a dxEvent or a jQuery.Event when you use jQuery.

Default Value: null

onFocusOut

A function that is executed when the widget loses focus.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
component:

DropDownBox

The widget's instance.

element:

Element (jQuery or HTML)

The widget's container. It is an HTML Element or a jQuery Element when you use jQuery.

model:

Object

The model data. Available only if Knockout is used.

jQueryEvent:

jQuery.Event

Use 'event' instead.

The jQuery event that caused the handler execution. Deprecated in favor of the event field.

event:

Event (jQuery or dxEvent)

The event that caused the handler execution. It is a dxEvent or a jQuery.Event when you use jQuery.

Default Value: null

onInitialized

A function that is executed only once, after the widget is initialized.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
component:

DropDownBox

The widget's instance.

element:

Element (jQuery or HTML)

The widget's container. It is an HTML Element or a jQuery Element when you use jQuery.

Default Value: null

You cannot access widget elements in this function because it is executed before they are ready.

onInput

A function that is executed each time the widget's input is changed while the widget is focused.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
component:

DropDownBox

The widget's instance.

element:

Element (jQuery or HTML)

The widget's container. It is an HTML Element or a jQuery Element when you use jQuery.

model:

Object

The model data. Available only if Knockout is used.

jQueryEvent:

jQuery.Event

Use 'event' instead.

The jQuery event that caused the handler execution. Deprecated in favor of the event field.

event:

Event (jQuery or dxEvent)

The event that caused the handler execution. It is a dxEvent or a jQuery.Event when you use jQuery.

Default Value: null

onKeyDown

A function that is executed when a user is pressing a key on the keyboard.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
component:

DropDownBox

The widget's instance.

element:

Element (jQuery or HTML)

The widget's container. It is an HTML Element or a jQuery Element when you use jQuery.

model:

Object

The model data. Available only if Knockout is used.

jQueryEvent:

jQuery.Event

Use 'event' instead.

The jQuery event that caused the handler execution. Deprecated in favor of the event field.

event:

Event (jQuery or dxEvent)

The event that caused the handler execution. It is a dxEvent or a jQuery.Event when you use jQuery.

Default Value: null

onKeyPress

A function that is executed when a user presses a key on the keyboard.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
component:

DropDownBox

The widget's instance.

element:

Element (jQuery or HTML)

The widget's container. It is an HTML Element or a jQuery Element when you use jQuery.

model:

Object

The model data. Available only if Knockout is used.

jQueryEvent:

jQuery.Event

Use 'event' instead.

The jQuery event that caused the handler execution. Deprecated in favor of the event field.

event:

Event (jQuery or dxEvent)

The event that caused the handler execution. It is a dxEvent or a jQuery.Event when you use jQuery.

Default Value: null

onKeyUp

A function that is executed when a user releases a key on the keyboard.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
component:

DropDownBox

The widget's instance.

element:

Element (jQuery or HTML)

The widget's container. It is an HTML Element or a jQuery Element when you use jQuery.

model:

Object

The model data. Available only if Knockout is used.

jQueryEvent:

jQuery.Event

Use 'event' instead.

The jQuery event that caused the handler execution. Deprecated in favor of the event field.

event:

Event (jQuery or dxEvent)

The event that caused the handler execution. It is a dxEvent or a jQuery.Event when you use jQuery.

Default Value: null

onOpened

A function that is executed once the drop-down editor is opened.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
component:

DropDownBox

The widget's instance.

element:

Element (jQuery or HTML)

The widget's container. It is an HTML Element or a jQuery Element when you use jQuery.

model:

Object

The model data. Available only if Knockout is used.

Default Value: null

onOptionChanged

A function that is executed after a widget option is changed.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
component:

DropDownBox

The widget's instance.

name:

String

The option's short name.

fullName:

String

The option's full name.

value: any

The option's new value.

element:

Element (jQuery or HTML)

The widget's container. It is an HTML Element or a jQuery Element when you use jQuery.

model:

Object

The model data. Available only if you use Knockout.

Default Value: null

onPaste

A function that is executed when the widget's input has been pasted.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
component:

DropDownBox

The widget's instance.

element:

Element (jQuery or HTML)

The widget's container. It is an HTML Element or a jQuery Element when you use jQuery.

model:

Object

The model data. Available only if Knockout is used.

jQueryEvent:

jQuery.Event

Use 'event' instead.

The jQuery event that caused the handler execution. Deprecated in favor of the event field.

event:

Event (jQuery or dxEvent)

The event that caused the handler execution. It is a dxEvent or a jQuery.Event when you use jQuery.

Default Value: null

onValueChanged

A function that is executed after the widget's value is changed.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
component:

DropDownBox

The widget's instance.

element:

Element (jQuery or HTML)

The widget's container. It is an HTML Element or a jQuery Element when you use jQuery.

model:

Object

The model data. Available only if Knockout is used.

value:

Object

The widget's new value.

previousValue:

Object

The widget's previous value.

jQueryEvent:

jQuery.Event

Use 'event' instead.

The jQuery event that caused the handler execution. Deprecated in favor of the event field.

event:

Event (jQuery or dxEvent)

The event that caused the handler execution. It is a dxEvent or a jQuery.Event when you use jQuery.

Default Value: null

opened

Specifies whether or not the drop-down editor is displayed.

Type:

Boolean

Default Value: false
Raised Events: opened, closed

openOnFieldClick

Specifies whether a user can open the drop-down list by clicking a text field.

Type:

Boolean

Default Value: true

placeholder

The text displayed by the widget when the widget value is empty.

Type:

String

Default Value: ''

readOnly

A Boolean value specifying whether or not the widget is read-only.

Type:

Boolean

Default Value: false

rtlEnabled

Switches the widget to a right-to-left representation.

Type:

Boolean

Default Value: false

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.

JavaScript
DevExpress.config({
    rtlEnabled: true
});
See Also

showClearButton

Specifies whether to display the Clear button in the widget.

Type:

Boolean

Default Value: false

The Clear button sets the widget value to null.

showDropDownButton

Specifies whether the drop-down button is visible.

Type:

Boolean

Default Value: true

stylingMode

Specifies how the widget's text field is styled.

Type:

String

Default Value: 'outlined', 'underlined' (Material)
Accepted Values: 'outlined' | 'underlined' | 'filled'

The following styles are available:

Text Editor Styling Modes

Use the EditorStylingMode enum to specify this option when the widget is used as an ASP.NET MVC 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.

Type:

Number

Default Value: 0

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.

Type:

String

Read-only

validationError

Specifies information on the validation error when using a custom validation engine. Should be changed at runtime along with the isValid option.

Type:

Object

Default Value: undefined

validationMessageMode

Specifies how the message about the validation rules that are not satisfied by this editor's value is displayed.

Type:

String

Default Value: 'auto'
Accepted Values: 'always' | 'auto'

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 currently selected value. May be an object if dataSource contains objects and valueExpr is not set.

Type: any
Default Value: null

valueChangeEvent

Specifies the DOM events after which the widget's value should be updated.

Type:

String

Default Value: 'change'

valueExpr

Specifies which data field provides unique values to the widget's value. When the data field is not set, the value is the entire data object.

Type:

String

|

Function

Default Value: 'this'

Alternatively, you can specify the key in the store.

NOTE
You cannot specify valueExpr as a function when the widget is bound to a remote data source. This is because valueExpr is used in a filter the widget sends to the server when querying data. Functions with custom logic cannot be serialized for this filter.
See Also

visible

Specifies whether the widget is visible.

Type:

Boolean

Default Value: true

width

Specifies the widget's width.

Type:

Number

|

String

|

Function

Return Value:

Number

|

String

The widget's width.

Default Value: undefined

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:

    JavaScript
    width: function() {
        return window.innerWidth / 1.5;
    }