JavaScript/jQuery NavBar API
See Also
- Set Up DevExtreme: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
- Configure a Widget: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
Options
| Name | Description |
|---|---|
| accessKey |
Specifies the shortcut key that sets focus on the widget. |
| dataSource |
Binds the widget to data. |
| disabled |
Specifies whether the widget responds to user interaction. |
| elementAttr |
Specifies the attributes to be attached to the widget's root element. |
| focusStateEnabled |
Specifies whether the widget can be focused using keyboard navigation. |
| height |
Specifies the widget's height. |
| 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. |
| itemComponent |
An alias for the itemTemplate option specified in React. Accepts a custom component. Refer to Using a Custom Component for more information. |
| itemHoldTimeout |
The time period in milliseconds before the onItemHold event is raised. |
| itemRender |
An alias for the itemTemplate option specified in React. Accepts a rendering function. Refer to Using a Rendering Function for more information. |
| items |
An array of items displayed by the widget. |
| itemTemplate |
Specifies a custom template for items. |
| keyExpr |
Specifies which data field provides keys for widget items. |
| noDataText |
The text or HTML markup displayed by the widget if the item collection is empty. |
| onContentReady |
A function that is executed when the widget's content is ready and each time the content is changed. |
| onDisposing |
A function that is executed before the widget is disposed of. |
| onInitialized |
A function used in JavaScript frameworks to save the widget 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. |
| onItemHold |
A function that is executed when a collection item has been held for a specified period. |
| onItemRendered |
A function that is executed after a collection item is rendered. |
| onOptionChanged |
A function that is executed after a widget option is changed. |
| onSelectionChanged |
A function that is executed when a collection item is selected or selection is canceled. |
| repaintChangesOnly |
Specifies whether to repaint only those elements whose data changed. |
| rtlEnabled |
Switches the widget to a right-to-left representation. |
| scrollByContent |
Specifies whether or not an end-user can scroll tabs by swiping. |
| selectedIndex |
The index of the currently selected widget item. |
| selectedItem |
The selected item object. |
| selectedItemKeys |
Specifies an array of currently selected item keys. |
| selectedItems |
An array of currently selected item objects. |
| selectionMode |
Specifies whether the widget enables an end-user to select only a single item or multiple items. |
| tabIndex |
Specifies the number of the element when the Tab key is used for navigating. |
| visible |
Specifies whether the widget is visible. |
| width |
Specifies the widget's width. |
See Also
- Configure a Widget: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
Methods
| Name | Description |
|---|---|
| beginUpdate() |
Prevents the widget from refreshing until the endUpdate() method is called. |
| defaultOptions(rule) |
Specifies the device-dependent default configuration options for this component. |
| dispose() |
Disposes of all the resources allocated to the NavBar instance. |
| element() |
Gets the root widget element. |
| endUpdate() |
Refreshes the widget after a call of the beginUpdate() method. |
| focus() |
Sets focus on the widget. |
| getDataSource() |
Gets the DataSource instance. |
| getInstance(element) |
Gets the instance of a widget found using its DOM node. |
| instance() |
Gets the widget's instance. Use it to access other methods of the widget. |
| 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 widget options. |
| option(optionName) |
Gets the value of a single option. |
| option(optionName, optionValue) |
Updates the value of a single option. |
| option(options) |
Updates the values of several options. |
| registerKeyHandler(key, handler) |
Registers a handler to be executed when a user presses a specific key. |
| repaint() |
Repaints the widget without reloading data. Call it to update the widget's markup. |
Events
| Name | Description |
|---|---|
| contentReady |
Raised when the widget's content is ready. |
| disposing |
Raised before the widget is disposed of. |
| initialized |
Raised only once, after the widget is initialized. |
| itemClick |
Raised when a collection item is clicked or tapped. |
| itemContextMenu |
Raised when a collection item is right-clicked or pressed. |
| itemHold |
Raised when a collection item has been held for a specified period. |
| itemRendered |
Raised after a collection item is rendered. |
| optionChanged |
Raised after a widget option is changed. |
| selectionChanged |
Raised when a collection item is selected or selection is canceled. |
See Also
- Handle Events: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
Default Item Template
By default, a predefined item template is applied to display the items of this widget. This template is based on certain fields of the data source provided for this widget. Below is the list of these fields. If the default item template is not appropriate for your task, implement a custom item template based on these or other fields of your data source.