React Menu API
The Menu UI component is a panel with clickable items. A click on an item opens a drop-down menu, which can contain several submenus.
See Also
jQuery
Angular
Vue
React
Configuration
Name | Description |
---|---|
accessKey |
Specifies the shortcut key that sets focus on the UI component. |
activeStateEnabled |
Specifies whether the UI component changes its state as a result of user interaction. |
adaptivityEnabled |
Specifies whether adaptive rendering is enabled. This property is in effect only if the orientation is "horizontal". |
animation |
Configures UI component visibility animations. This object contains two fields: show and hide. |
cssClass |
Specifies the name of the CSS class to be applied to the root menu level and all submenus. |
dataSource |
Binds the UI component to data. |
disabled |
Specifies whether the UI component responds to user interaction. |
disabledExpr |
Specifies the name of the data source item field whose value defines whether or not the corresponding UI component item is disabled. |
displayExpr |
Specifies the data field whose values should be displayed. |
elementAttr |
Specifies the global attributes to be attached to the UI component's container element. |
focusStateEnabled |
Specifies whether the UI component can be focused using keyboard navigation. |
height |
Specifies the UI component's height. |
hideSubmenuOnMouseLeave |
Specifies whether or not the submenu is hidden when the mouse pointer leaves it. |
hint |
Specifies text for a hint that appears when a user pauses on the UI component. |
hoverStateEnabled |
Specifies whether the UI component changes its state when a user pauses on it. |
itemComponent |
An alias for the itemTemplate property specified in React. Accepts a custom component. Refer to Using a Custom Component for more information. |
itemRender |
An alias for the itemTemplate property specified in React. Accepts a rendering function. Refer to Using a Rendering Function for more information. |
items |
Holds an array of menu items. |
itemsExpr |
Specifies which data field contains nested items. |
itemTemplate |
Specifies a custom template for items. |
onContentReady |
A function that is executed when the UI component is rendered and each time the component is repainted. |
onDisposing |
A function that is executed before the UI component is disposed of. |
onInitialized |
A function used in JavaScript frameworks to save the UI component instance. |
onItemClick |
A function that is executed when a collection item is clicked or tapped. |
onItemContextMenu |
A function that is executed when a collection item is right-clicked or pressed. |
onItemRendered |
A function that is executed after a collection item is rendered. |
onOptionChanged |
A function that is executed after a UI component property is changed. |
onSelectionChanged |
A function that is executed when a collection item is selected or selection is canceled. |
onSubmenuHidden |
A function that is executed after a submenu is hidden. |
onSubmenuHiding |
A function that is executed before a submenu is hidden. |
onSubmenuShowing |
A function that is executed before a submenu is displayed. |
onSubmenuShown |
A function that is executed after a submenu is displayed. |
orientation |
Specifies whether the menu has horizontal or vertical orientation. |
rtlEnabled |
Switches the UI component to a right-to-left representation. |
selectByClick |
Specifies whether or not an item becomes selected if a user clicks it. |
selectedExpr |
Specifies the name of the data source item field whose value defines whether or not the corresponding UI component items is selected. |
selectedItem |
The selected item object. |
selectionMode |
Specifies the selection mode supported by the menu. |
showFirstSubmenuMode |
Specifies properties for showing and hiding the first level submenu. |
showSubmenuMode |
Specifies properties of submenu showing and hiding. |
submenuDirection |
Specifies the direction at which the submenus are displayed. |
tabIndex |
Specifies the number of the element when the Tab key is used for navigating. |
visible |
Specifies whether the UI component is visible. |
width |
Specifies the UI component's width. |
See Also
Methods
Name | Description |
---|---|
beginUpdate() |
Prevents the UI component from refreshing until the endUpdate() method is called. |
defaultOptions(rule) |
Specifies the device-dependent default configuration properties for this component. |
dispose() |
Disposes of all the resources allocated to the Menu instance. |
element() |
Gets the root UI component element. |
endUpdate() |
Refreshes the UI component after a call of the beginUpdate() method. |
focus() |
Sets focus on the UI component. |
getDataSource() |
Gets the DataSource instance. |
getInstance(element) |
Gets the instance of a UI component found using its DOM node. |
instance() |
Gets the UI component's instance. Use it to access other methods of the UI component. |
off(eventName) |
Detaches all event handlers from a single event. |
off(eventName, eventHandler) |
Detaches a particular event handler from a single event. |
on(eventName, eventHandler) |
Subscribes to an event. |
on(events) |
Subscribes to events. |
option() |
Gets all UI component properties. |
option(optionName) |
Gets the value of a single property. |
option(optionName, optionValue) |
Updates the value of a single property. |
option(options) |
Updates the values of several properties. |
registerKeyHandler(key, handler) |
Registers a handler to be executed when a user presses a specific key. |
repaint() |
Repaints the UI component without reloading data. Call it to update the UI component's markup. |
resetOption(optionName) |
Resets a property to its default value. |
selectItem(itemElement) |
Selects an item found using its DOM node. |
unselectItem(itemElement) |
Cancels the selection of an item found using its DOM node. |
Events
Name | Description |
---|---|
contentReady |
Raised when the UI component's content is ready. |
disposing |
Raised before the UI component is disposed of. |
initialized |
Raised only once, after the UI component is initialized. |
itemClick |
Raised when a collection item is clicked or tapped. |
itemContextMenu |
Raised when a collection item is right-clicked or pressed. |
itemRendered |
Raised after a collection item is rendered. |
optionChanged |
Raised after a UI component property is changed. |
selectionChanged |
Raised when a collection item is selected or selection is canceled. |
submenuHidden |
Raised after a submenu is hidden. |
submenuHiding |
Raised before a submenu is hidden. |
submenuShowing |
Raised before a submenu is displayed. |
submenuShown |
Raised after a submenu is displayed. |
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