Angular Menu Properties

An object defining configuration properties for the Menu UI component.

accessKey

Specifies the shortcut key that sets focus on the UI component.

Type:

String

Default Value: undefined

The value of this property will be passed to the accesskey attribute of the HTML element that underlies the UI component.

activeStateEnabled

Specifies whether the UI component changes its state as a result of user interaction.

Type:

Boolean

Default Value: true

The UI component switches to the active state when users press down the primary mouse button. When this property is set to true, the CSS rules for the active state apply. You can change these rules to customize the component.

Use this property when you display the component on a platform whose guidelines include the active state change for UI components.

adaptivityEnabled

Specifies whether adaptive rendering is enabled. This property is in effect only if the orientation is "horizontal".

Type:

Boolean

Default Value: false

If you enable adaptive rendering, the Menu is shown as a list icon, and Menu items are arranged hierarchically like TreeView items. This functionality is enabled only if the container's width is less than the Menu width.

The following code example sets the container's width to 400 pixels, sets the Menu width to 500 pixels, and enables adaptive rendering to demonstrate the behavior described above.

jQuery
index.js
index.html
index.css
$(function() {
    $("#menu").dxMenu({
        // ...
        adaptivityEnabled: true,
        width: 500
    });
});
<div id="container">
    <div id="menu"></div>
</div>
#container {
    width: 400px;
}
Angular
app.component.html
app.component.css
<div id="container">
    <dx-menu ...
        [adaptivityEnabled]="true"
        [width]="500"
    >
    </dx-menu>
</div>
#container {
    width: 400px;
}
Vue
App.vue
<template>
    <div id="container">
        <DxMenu ...
            :adaptivity-enabled="true"
            :width="500"
        />
    </div>
</template>

<script>
    import 'devextreme/dist/css/dx.light.css';

    import DxMenu from 'devextreme-vue/menu';

    export default {
        components: {
            DxMenu
        },
        data() {
            return {
                // ...
            };
        }
    };
</script>

<style>
    #container {
        width: 400px;
    }
</style>
React
App.js
index.css
import React from 'react';
import 'devextreme/dist/css/dx.light.css';

import { Menu } from 'devextreme-react/menu';

function App() {
    return (
        <div id="container">
            <Menu ...
                adaptivityEnabled={true}
                width={500}
            />
        </div>
    );
}

export default App;
#container {
    width: 400px;
}

animation

Configures UI component visibility animations. This object contains two fields: show and hide.

Selector: dxo-animation
Type:

Object

Default Value: { show: { type: 'fade', from: 0, to: 1, duration: 100 }, hide: { type: 'fade', from: 1, to: 0, duration: 100 } }

Set this object to null or undefined to disable animation.

cssClass

Specifies the name of the CSS class to be applied to the root menu level and all submenus.

Type:

String

Default Value: ''

Use this property to customize the current menu in isolation from other menus created on the same page.

dataSource

Binds the UI component to data.

Default Value: null

The Menu works with collections of string values or objects.

Depending on your data source, bind the Menu to data as follows. If the data source provides objects, also specify the itemTemplate. You can skip this part if the objects contain fields described in the items section.

  • Data Array
    Assign the array to the dataSource option.

  • Read-Only Data in JSON Format
    Set the dataSource property 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 UI components 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";
        $("#menuContainer").dxMenu({
            // ...
            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-menu ...
        [dataSource]="store">
    </dx-menu>
    import { BrowserModule } from '@angular/platform-browser';
    import { NgModule } from '@angular/core';
    import { AppComponent } from './app.component';
    
    import { DxMenuModule } from 'devextreme-angular';
    
    @NgModule({
        declarations: [
            AppComponent
        ],
        imports: [
            BrowserModule,
            DxMenuModule
        ],
        providers: [],
        bootstrap: [AppComponent]
    })
    export class AppModule { }
    Vue
    App.vue
    <template> 
        <DxMenu ...
            :data-source="store" />
    </template>
    
    <script>
    import 'devextreme/dist/css/dx.light.css';
    
    import CustomStore from 'devextreme/data/custom_store';
    import { createStore } from 'devextreme-aspnet-data-nojquery';
    import { DxMenu } from 'devextreme-vue/menu';
    
    export default {
        components: {
            DxMenu
        },
        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.light.css';
    
    import CustomStore from 'devextreme/data/custom_store';
    import { createStore } from 'devextreme-aspnet-data-nojquery';
    import Menu from 'devextreme-react/menu';
    
    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 (
                <Menu ...
                    dataSource={store} />
            );
        }
    }
    export default App;
  • Any other data source
    Implement a CustomStore.

Regardless of the data source on the input, the Menu always wraps it in the DataSource object. This object allows you to sort, filter, group, and perform other data shaping operations. To get its instance, call the getDataSource() method.

NOTE

Review the following notes about data binding:

  • Do not specify the items property if you specified the dataSource, and vice versa.

  • Data field names cannot be equal to this and should not contain the following characters: ., :, [, and ].

jQuery
  • The stores are immutable. You cannot change their configurations at runtime. Instead, create a new store or DataSource and assign it to the dataSource property as shown in the following help topic: Get and Set Properties.
Angular
  • The stores are immutable. You cannot change their configurations at runtime. Instead, create a new store or DataSource and assign it to the dataSource property as shown in the following help topic: Two-Way Property Binding.
Vue
  • The stores are immutable. You cannot change their configurations at runtime. Instead, create a new store or DataSource and assign it to the dataSource property as shown in the following help topic: Two-Way Property Binding.
React
  • The stores are immutable. You cannot change their configurations at runtime. Instead, create a new store or DataSource and assign it to the dataSource property as shown in the following help topic: Controlled Mode.

disabled

Specifies whether the UI component responds to user interaction.

Type:

Boolean

Default Value: false

disabledExpr

Specifies the name of the data source item field whose value defines whether or not the corresponding UI component item is disabled.

Type:

String

|

Function

Default Value: 'disabled'

displayExpr

Specifies the data field whose values should be displayed.

Type:

String

|

Function

Function parameters:
item:

Object

The current item's data object.

Return Value:

String

The displayed value.

Default Value: 'text'

Set this property 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;
}

elementAttr

Specifies the global attributes to be attached to the UI component's container element.

Selector: dxo-element-attr
Type:

Object

Default Value: {}

jQuery
$(function(){
    $("#menuContainer").dxMenu({
        // ...
        elementAttr: {
            id: "elementId",
            class: "class-name"
        }
    });
});
Angular
HTML
TypeScript
<dx-menu ...
    [elementAttr]="{ id: 'elementId', class: 'class-name' }">
</dx-menu>
import { DxMenuModule } from "devextreme-angular";
// ...
export class AppComponent {
    // ...
}
@NgModule({
    imports: [
        // ...
        DxMenuModule
    ],
    // ...
})
Vue
App.vue
<template>
    <DxMenu ...
        :element-attr="menuAttributes">
    </DxMenu>
</template>

<script>
import DxMenu from 'devextreme-vue/menu';

export default {
    components: {
        DxMenu
    },
    data() {
        return {
            menuAttributes: {
                id: 'elementId',
                class: 'class-name'
            }
        }
    }
}
</script>
React
App.js
import React from 'react';

import Menu from 'devextreme-react/menu';

class App extends React.Component {
    menuAttributes = {
        id: 'elementId',
        class: 'class-name'
    }

    render() {
        return (
            <Menu ...
                elementAttr={this.menuAttributes}>
            </Menu>
        );
    }
}
export default App;

focusStateEnabled

Specifies whether the UI component can be focused using keyboard navigation.

Type:

Boolean

Default Value: true (desktop)

height

Specifies the UI component's height.

Type:

Number

|

String

|

Function

Return Value:

Number

|

String

The UI component's height.

Default Value: undefined

This property accepts a value of one of the following types:

  • Number
    The height in pixels.

  • String
    A CSS-accepted measurement of height. For example, "55px", "20vh", "80%", "inherit".

  • Function (deprecated since v21.2)
    Refer to the W0017 warning description for information on how you can migrate to viewport units.

hideSubmenuOnMouseLeave

Specifies whether or not the submenu is hidden when the mouse pointer leaves it.

Type:

Boolean

Default Value: false

hint

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

Type:

String

Default Value: undefined

hoverStateEnabled

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

Type:

Boolean

Default Value: true

items[]

Holds an array of menu items.

Selector: dxi-item
Type:

Array<dxMenuItem>

Raised Events: onOptionChanged

The items array can contain:

  • Objects with fields described in this section
  • Objects with any other fields. In this case, specify the itemTemplate.

If you need to update the UI component items, reassign the entire items array as shown in the following example:

JavaScript
menuInstance.option('items', newItems);

As an alternative to items, you can use the dataSource property. It accepts the DataSource object, whose underlying stores provide an API that allows you to update individual items without reassigning the entire item collection.

NOTE
Do not use the items property if you use dataSource, and vice versa.

itemsExpr

Specifies which data field contains nested items.

Type:

String

|

Function

Default Value: 'items'

itemTemplate

Specifies a custom template for items.

Type:

template

Template Data:

Object

The item object to be rendered.

Default Name: 'item'

onContentReady

A function that is executed when the UI component is rendered and each time the component is repainted.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
Name Type Description
component

Menu

The UI component's instance.

element

HTMLElement | jQuery

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

model any

Model data. Available only when using Knockout.

Default Value: null

onDisposing

A function that is executed before the UI component is disposed of.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
Name Type Description
component

Menu

The UI component's instance.

element

HTMLElement | jQuery

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

model any

Model data. Available only if you use Knockout.

Default Value: null

onInitialized

A function used in JavaScript frameworks to save the UI component instance.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
Name Type Description
component

Menu

The UI component's instance.

element

HTMLElement | jQuery

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

Default Value: null

onItemClick

A function that is executed when a collection item is clicked or tapped.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
Name Type Description
component

Menu

The UI component's instance.

element

HTMLElement | jQuery

The UI component's container.

event

Event (jQuery or EventObject)

The event that caused the function to execute. It is an EventObject or a jQuery.Event when you use jQuery.

itemData

Object

The clicked item's data.

itemElement

HTMLElement | jQuery

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

itemIndex

Number

The clicked item's index.

model any

Model data. Available only if you use Knockout.

Default Value: null

onItemContextMenu

A function that is executed when a collection item is right-clicked or pressed.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
Name Type Description
component

Menu

The UI component's instance.

element

HTMLElement | jQuery

The UI component'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 an EventObject or a jQuery.Event when you use jQuery.

itemData

Object

The item's data.

itemElement

HTMLElement | jQuery

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

itemIndex

Number

The item's index.

model any

Model data. Available only if you use Knockout.

Default Value: null

onItemRendered

A function that is executed after a collection item is rendered.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
Name Type Description
component

Menu

The UI component's instance.

element

HTMLElement | jQuery

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

itemData

Object

The current item's data.

itemElement

HTMLElement | jQuery

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

itemIndex

Number

The current item's index.

model any

Model data. Available only if you use Knockout.

Default Value: null

onOptionChanged

A function that is executed after a UI component property is changed.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
Name Type Description
model any

Model data. Available only if you use Knockout.

fullName

String

The path to the modified property that includes all parent properties.

element

HTMLElement | jQuery

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

component

Menu

The UI component's instance.

name

String

The modified property if it belongs to the first level. Otherwise, the first-level property it is nested into.

value any

The modified property's new value.

Default Value: null

The following example shows how to subscribe to component property changes:

jQuery
index.js
$(function() {
    $("#menuContainer").dxMenu({
        // ...
        onOptionChanged: function(e) {
            if(e.name === "changedProperty") {
                // handle the property change here
            }
        }
    });
});
Angular
app.component.html
app.component.ts
app.module.ts
<dx-menu ...
    (onOptionChanged)="handlePropertyChange($event)"> 
</dx-menu>
import { Component } from '@angular/core'; 

@Component({ 
    selector: 'app-root', 
    templateUrl: './app.component.html', 
    styleUrls: ['./app.component.css'] 
}) 

export class AppComponent { 
    // ...
    handlePropertyChange(e) {
        if(e.name === "changedProperty") { 
            // handle the property change here
        }
    }
}
import { BrowserModule } from '@angular/platform-browser'; 
import { NgModule } from '@angular/core'; 
import { AppComponent } from './app.component'; 
import { DxMenuModule } from 'devextreme-angular'; 

@NgModule({ 
    declarations: [ 
        AppComponent 
    ], 
    imports: [ 
        BrowserModule, 
        DxMenuModule 
    ], 
    providers: [ ], 
    bootstrap: [AppComponent] 
}) 

export class AppModule { }  
Vue
App.vue
<template> 
    <DxMenu ...
        @option-changed="handlePropertyChange"
    />            
</template> 

<script>  
import 'devextreme/dist/css/dx.light.css'; 
import DxMenu from 'devextreme-vue/menu'; 

export default { 
    components: { 
        DxMenu
    }, 
    // ...
    methods: { 
        handlePropertyChange: function(e) {
            if(e.name === "changedProperty") {
                // handle the property change here
            }
        }
    } 
} 
</script> 
React
App.js
import React from 'react';  
import 'devextreme/dist/css/dx.light.css'; 

import Menu from 'devextreme-react/menu'; 

const handlePropertyChange = (e) => {
    if(e.name === "changedProperty") {
        // handle the property change here
    }
}

export default function App() { 
    return ( 
        <Menu ...
            onOptionChanged={handlePropertyChange}
        />        
    ); 
} 

onSelectionChanged

A function that is executed when a collection item is selected or selection is canceled.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
Name Type Description
addedItems

Array<any>

The data of the items that have been selected.

component

Menu

The UI component's instance.

element

HTMLElement | jQuery

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

model any

Model data. Available only if you use Knockout.

removedItems

Array<any>

The data of the items whose selection has been canceled.

Default Value: null

onSubmenuHidden

A function that is executed after a submenu is hidden.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
Name Type Description
component

Menu

The UI component's instance.

element

HTMLElement | jQuery

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

model any

Model data. Available only if Knockout is used.

rootItem

HTMLElement | jQuery

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

Default Value: null

onSubmenuHiding

A function that is executed before a submenu is hidden.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
Name Type Description
cancel

Boolean

Allows you to cancel submenu hiding.

component

Menu

The UI component's instance.

element

HTMLElement | jQuery

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

model any

Model data. Available only if Knockout is used.

rootItem

HTMLElement | jQuery

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

Default Value: null

onSubmenuShowing

A function that is executed before a submenu is displayed.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
Name Type Description
component

Menu

The UI component's instance.

element

HTMLElement | jQuery

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

model any

Model data. Available only if Knockout is used.

rootItem

HTMLElement | jQuery

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

Default Value: null

onSubmenuShown

A function that is executed after a submenu is displayed.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
Name Type Description
component

Menu

The UI component's instance.

element

HTMLElement | jQuery

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

model any

Model data. Available only if Knockout is used.

rootItem

HTMLElement | jQuery

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

Default Value: null

orientation

Specifies whether the menu has horizontal or vertical orientation.

Type:

String

Default Value: 'horizontal'
Accepted Values: 'horizontal' | 'vertical'

rtlEnabled

Switches the UI component to a right-to-left representation.

Type:

Boolean

Default Value: false

When this property is set to true, the UI component 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
});

DataGrid Demo Navigation UI Demo Editors Demo

selectByClick

Specifies whether or not an item becomes selected if a user clicks it.

Type:

Boolean

Default Value: false

selectedExpr

Specifies the name of the data source item field whose value defines whether or not the corresponding UI component items is selected.

Type:

String

|

Function

Default Value: 'selected'

selectedItem

The selected item object.

Type: any
Default Value: null
Raised Events: onSelectionChanged

selectionMode

Specifies the selection mode supported by the menu.

Type:

String

Default Value: none
Accepted Values: 'none' | 'single'

To select an item on click and to visually display the selection, set the selectByClick property to true. Note that in this case the selectionMode should be "single".

showFirstSubmenuMode

Specifies properties for showing and hiding the first level submenu.

Selector: dxo-show-first-submenu-mode
Type:

Object

|

String

Default Value: { name: 'onClick', delay: { show: 50, hide: 300 } }
Accepted Values: 'onClick' | 'onHover'

If you assign a string that specifies the mode name to this property, the UI component will use the default delay value.

JavaScript
showFirstSubmenuMode: "onHover"

View Demo

showSubmenuMode

Specifies properties of submenu showing and hiding.

Selector: dxo-show-submenu-mode
Type:

Object

|

String

Default Value: { name: 'onHover', delay: { show: 50, hide: 300 } }
Accepted Values: 'onClick' | 'onHover'

By default, the secondary-level submenus of the Menu UI component are displayed on the same event as the first-level submenu. To set another event for displaying secondary-level submenus, use the showSubmenuMode property. Alternatively, you can change the event on which the first-level submenu is displayed. For this purpose, use the showFirstSubmenuMode property.

submenuDirection

Specifies the direction at which the submenus are displayed.

Type:

String

Default Value: 'auto'
Accepted Values: 'auto' | 'leftOrTop' | 'rightOrBottom'

By default, the first submenu is displayed so that it is visible totally, based on the menu location on the page. Use the submenuDirection property to display the first submenu at the bottom or at the top of a root item when the UI component's orientation is horizontal, and to the left or to the right when orientation is vertical.

View Demo

tabIndex

Specifies the number of the element when the Tab key is used for navigating.

Type:

Number

Default Value: 0

The value of this property will be passed to the tabindex attribute of the HTML element that underlies the UI component.

visible

Specifies whether the UI component is visible.

Type:

Boolean

Default Value: true

width

Specifies the UI component's width.

Type:

Number

|

String

|

Function

Return Value:

Number

|

String

The UI component's width.

Default Value: undefined

This property accepts a value of one of the following types:

  • Number
    The width in pixels.

  • String
    A CSS-accepted measurement of width. For example, "55px", "20vw", "80%", "auto", "inherit".

  • Function (deprecated since v21.2)
    Refer to the W0017 warning description for information on how you can migrate to viewport units.