Configuration

An object defining configuration options for the dxMenu widget.

accessKey

Specifies a shortcut key that sets focus on the widget element.

Type:

String

Default Value: null

The accessKey option value is passed to the accesskey attribute of the actual HTML element of the widget.

activeStateEnabled

A Boolean value specifying 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.

animation

An object that defines the animation options of the widget.

Type:

Object

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

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 option to customize the current menu in isolation from other menus created on the same page.

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dataSource

A data source used to fetch data to be displayed by the widget.

Default Value: null

You can assign an array directly to this option as well as use the Data Source provided by the DevExtreme library.

NOTE
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.

To display widget items, a default template can be used. This template is based on the data source fields that are listed in the Default Item Template section of the widget's API. Alternatively, you can implement a custom item template.

See Also

disabled

A Boolean value specifying whether or not the widget can respond to user interaction.

Type:

Boolean

Default Value: false

Create an observable variable and assign it to this option to specify the availability of the widget at runtime.

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disabledExpr

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

Type:

String

|

function

Default Value: 'disabled'

displayExpr

Specifies the name of the data source item field whose value is displayed by the widget.

Type:

String

|

function

Default Value: 'text'

focusStateEnabled

Specifies whether or not the widget can be focused.

Type:

Boolean

Default Value: false
Default for desktop: true

height

Specifies the height of the widget.

Type:

Number

|

String

|

function

Return Value:

Number

|

String

The widget height.

Default Value: undefined

The option can hold a value of the following types.

  • number
    The height of the widget in pixels

  • string
    A CSS measurement of the widget height (e.g., "55px", "80%", "auto" and "inherit")

  • function
    A function returning the widget height (e.g., height:function(){ return baseHeight - 10 + "%"; })

hideSubmenuOnMouseLeave

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

Type:

Boolean

Default Value: false

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hint

Specifies the text of the hint displayed for the widget.

Type:

String

Default Value: undefined

hoverStateEnabled

A Boolean value specifying whether or not the widget changes its state when being hovered by an end user.

Type:

Boolean

Default Value: true

items

Holds an array of menu items.

Type:

Array

NOTE
Each item of the array passed to the items option can include the items field, which takes on an object with the same structure as a root item. Therefore, you can create as many menu levels as you need.

To display menu items, a default template can be used. This template is based on certain fields of the item object. Refer to the Default Item Template section to learn which fields are taken into account when creating a default template for items. Alternatively, you can implement a custom item template.

See Also
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itemsExpr

Specifies the name of the data source item field that contains an array of nested items.

Type:

String

|

function

Default Value: 'items'

itemTemplate

The template to be used for rendering items.

Function parameters:
itemData:

Object

The item object to be rendered.

itemIndex:

Number

The index of the item to be rendered.

itemElement:

jQuery

An HTML element of the item to be rendered.

Return Value:

String

|

DOM Node

|

jQuery

A template name or a template container.

Default Value: 'item'
NOTE
A binding context of an item template is the data source object that corresponds to the currently rendered item. So, you can bind template elements to the item object's fields directly (see the code above). To access another binding context within an item template, use Knockout/AngularJS binding variables.
See Also

onContentReady

A handler for the contentReady event.

Type:

function

Function parameters:
e:

Object

Provides function parameters.

Object structure:
component:

Object

Provides access to the widget instance.

element:

jQuery

An HTML element of the widget.

model:

Object

Provides access to the data that is available for binding against the element. Available only in the Knockout and AngularJS approaches.

Default Value: null

Assign a function to perform a custom action when widget content is ready.

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onDisposing

A handler for the disposing event.

Type:

function

Function parameters:
e:

Object

Provides function parameters.

Object structure:
component:

Object

Provides access to the widget instance.

element:

jQuery

An HTML element of the widget.

model:

Object

Provides access to the data that is available for binding against the element. Available only in the Knockout and AngularJS approaches.

Default Value: null

Assign a function to perform a custom action when the widget is being removed.

NOTE
The function assigned to this option is executed only if the widget is removed using the remove(), empty(), or html() jQuery methods.

onInitialized

A handler for the initialized event.

Type:

function

Function parameters:
e:

Object

Provides function parameters.

Object structure:
component:

Object

Provides access to the widget instance.

element:

jQuery

An HTML element of the widget.

Default Value: null

Assign a function to perform a custom action when the widget is initialized.

onItemClick

A handler for the itemClick event.

Type:

function

|

String

Function parameters:
e:

Object

Provides function parameters.

Object structure:
component:

Object

Provides access to the widget instance.

element:

jQuery

An HTML element of the widget.

model:

Object

Provides access to the data that is available for binding against the element. Available only in the Knockout and AngularJS approaches.

itemData:

Object

The data that is bound to the clicked item.

itemElement:

jQuery

An HTML element of the item.

itemIndex:

Number

Specifies the index of the clicked item.

jQueryEvent:

jQuery.Event

Specifies the jQuery event that caused action execution.

Default Value: null

Assign a function to perform a custom action when a widget item is clicked.

To navigate to a specific URL when the itemClick event fires, assign that URL or the anchor part (#) of that URL directly to this option as a string.

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onItemContextMenu

A handler for the itemContextMenu event.

Type:

function

Function parameters:
e:

Object

Provides function parameters.

Object structure:
component:

Object

Provides access to the widget instance.

element:

jQuery

An HTML element of the widget.

model:

Object

Provides access to the data that is available for binding against the element. Available only in the Knockout and AngularJS approaches.

itemData:

Object

The data that is bound to the item.

itemElement:

jQuery

An HTML element of the item.

itemIndex:

Number

Specifies the index of the item.

jQueryEvent:

jQuery.Event

Specifies the jQuery event that caused action execution.

Default Value: null

Assign a function to perform a custom action when the right mouse button is clicked when the pointer is over a widget item, or when the "sustained" (also known as a long press) touch action is performed.

onItemRendered

A handler for the itemRendered event.

Type:

function

Function parameters:
e:

Object

Provides function parameters.

Object structure:
component:

Object

Provides access to the widget instance.

element:

jQuery

An HTML element of the widget.

model:

Object

Provides access to the data available for binding against the element. Available only in the Knockout and AngularJS approaches.

itemData:

Object

The data that is bound to the item to be rendered.

itemElement:

jQuery

An HTML element of the item.

itemIndex:

Number

Specifies the index of the rendered item.

Default Value: null

Assign a function to perform a custom action after a collection item is rendered.

onOptionChanged

A handler for the optionChanged event.

Type:

function

Function parameters:
e:

Object

Provides function parameters.

Object structure:
component:

Object

Provides access to the widget instance.

name:

String

Specifies the name of the option whose value is changed.

fullName:

String

Specifies a full name of the option whose value is changed. The full name is formed by concatenating the names of the options that are presented in the hierarchy of the given option. The names are delimited by commas.

value: any

Specifies a new value for the option.

element:

jQuery

An HTML element of the widget.

model:

Object

Provides access to the data that is available for binding against the element. Available only in the Knockout and AngularJS approaches.

Default Value: null

Assign a function to perform a custom action after an option of the component is changed.

onSelectionChanged

A handler for the selectionChanged event.

Type:

function

Function parameters:
e:

Object

Provides function parameters.

Object structure:
component:

Object

Provides access to the widget instance.

element:

jQuery

An HTML element of the widget.

model:

Object

Provides access to the data that is available for binding against the element. Available only in the Knockout and AngularJS approaches.

addedItems:

Array

An array of items added to selection.

removedItems:

Array

An array of items removed from selection.

Default Value: null

Assign a function to perform a custom action after a collection item is selected or unselected.

onSubmenuHidden

A handler for the submenuHidden event.

Type:

function

Function parameters:
e:

Object

Provides function parameters.

Object structure:
component:

Object

Provides access to the widget instance.

element:

jQuery

An HTML element of the widget.

model:

Object

Provides access to the data that is available for binding against the element. Available only in the Knockout and AngularJS approaches.

rootItem:

jQuery

A jQuery object of the root menu element for which the submenu is hidden.

Default Value: null

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onSubmenuHiding

A handler for the submenuHiding event.

Type:

function

Function parameters:
e:

Object

Provides function parameters.

Object structure:
component:

Object

Provides access to the widget instance.

element:

jQuery

An HTML element of the widget.

model:

Object

Provides access to the data that is available for binding against the element. Available only in the Knockout and AngularJS approaches.

rootItem:

jQuery

A jQuery object of the root menu element for which the submenu is being hidden.

cancel:

Boolean

Specifies whether or not to cancel the hiding of the widget.

Default Value: null

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onSubmenuShowing

A handler for the submenuShowing event.

Type:

function

Function parameters:
e:

Object

Provides function parameters.

Object structure:
component:

Object

Provides access to the widget instance.

element:

jQuery

An HTML element of the widget.

model:

Object

Provides access to the data that is available for binding against the element. Available only in the Knockout and AngularJS approaches.

rootItem:

jQuery

A jQuery object of the root menu element for which the submenu is being displayed.

Default Value: null

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onSubmenuShown

A handler for the submenuShown event.

Type:

function

Function parameters:
e:

Object

Provides function parameters.

Object structure:
component:

Object

Provides access to the widget instance.

element:

jQuery

An HTML element of the widget.

model:

Object

Provides access to the data that is available for binding against the element. Available only in the Knockout and AngularJS approaches.

rootItem:

jQuery

A jQuery object of the root menu element for which the submenu is displayed.

Default Value: null

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orientation

Specifies whether the menu has horizontal or vertical orientation.

Type:

String

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

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rtlEnabled

Specifies whether or not the current component supports a right-to-left representation.

Type:

Boolean

Default Value: false

If you need to switch the display of this DevExtreme component to right-to-left, enable a specifically designed configuration option - rtlEnabled. When this option is set to true, the text flows from right to left, and the layout the component's elements is reversed. To switch the entire application/site to a right-to-left representation, use the static DevExpress.rtlEnabled field.

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selectedExpr

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

Type:

String

|

function

Default Value: 'selected'

selectedItem

The selected item object.

Type:

Object

Default Value: null

selectionByClick

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

Type:

Boolean

Default Value: false

selectionMode

Specifies the selection mode supported by the menu.

Type:

String

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

showFirstSubmenuMode

Specifies options for showing and hiding the first level submenu.

Type:

Object

|

String

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

If you assign a string that specifies the mode name to this option, the widget will use the default delay value.

JavaScript
showFirstSubmenuMode: "onHover"

showSubmenuMode

Specifies options of submenu showing and hiding.

Type:

Object

|

String

Default Value: { name: 'onHover', delay: { show: 0, hide: 0 } }
Accepted Values: 'onHover' | 'onClick'

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

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submenuDirection

Specifies the direction at which the submenus are displayed.

Type:

String

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

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

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tabIndex

Specifies the widget tab index.

Type:

Number

Default Value: 0

visible

A Boolean value specifying whether or not the widget is visible.

Type:

Boolean

Default Value: true

width

Specifies the width of the widget.

Type:

Number

|

String

|

function

Return Value:

Number

|

String

The widget width.

Default Value: undefined

The option can hold a value of the following types.

  • numeric
    The widget width in pixels.
  • string
    A CSS measurement of the widget width (e.g., "55px", "80%", "auto" and "inherit").
  • function
    The function returning the widget width. For example, see the following code.

    JavaScript
    width: function () { 
        return baseWidth - 10 + "%";
    }