ASP.NET Core MVC Controls | ComponentOne
Client- Side API Reference / TabPanel / TabPanel Class
In This Topic
    TabPanel Class
    In This Topic
    File
    wijmo.nav.js
    Module
    wijmo.nav
    Base Class
    Control

    The TabPanel enables content organization at a high level, such as switching between views, data sets, or functional aspects of an application.

    Tabs are presented as a single row above their associated content. Tab headers succinctly describe the content within.

    Tabs can be selected with the mouse or keyboard, and automatically update the content to reflect the current selection.

    The example below shows how you can use a TabPanel to organize content into pages:

    {@sample Nav/TabPanel/Overview Example}

    Constructor

    Properties

    Methods

    Events

    Constructor

    constructor

    constructor(element: any, options?, keepChildren?: boolean): TabPanel
    

    Initializes a new instance of the TabPanel class.

    Parameters
    • element: any

      The DOM element that hosts the control, or a CSS selector for the host element (e.g. '#theCtrl').

    • options:
    Optional

    The JavaScript object containing initialization data for the control.

    Whether to keep child elements. If set to true, the caller becomes responsible for populating the tabs array based on the DOM).

    Returns
    TabPanel

    Properties

    autoSwitch

    Gets or sets a value that determines whether the control should switch tabs automatically when the user selects a tab using the arrow keys.

    The default value for this property is **true**, which causes the control to switch tabs when the user presses the arrow keys. In this mode, the Tab key selects the next element in the tab sequence, which excludes non-selected tab headers.

    When autoSwitch is set to **false**, pressing the arrow keys or the Tab key moves the focus to the next or previous tab header, but does not switch tabs. Pressing the **Enter** or **Space** keys is required to activate the tab that has the focus.

    In most cases, the default value provides adequate (accessible) behavior, but some users may prefer to set autoSwitch to false. For a more detailed discussion of this topic, please see the W3C ARIA practices and SimplyAccessible articles.

    Type
    boolean

     

    Static controlTemplate

    Gets or sets the template used to instantiate TabPanel controls.

    Type
    any

    hostElement

    Gets the DOM element that is hosting the control.

    Inherited From
    Control
    Type
    HTMLElement

    isAnimated

    Gets or sets a value that determines whether tab changes should be animated with a fade-in effect.

    The default value for this property is **true**.

    Type
    boolean

    isDisabled

    Gets or sets a value that determines whether the control is disabled.

    Disabled controls cannot get mouse or keyboard events.

    Inherited From
    Control
    Type
    boolean

    isTouching

    Gets a value that indicates whether the control is currently handling a touch event.

    Inherited From
    Control
    Type
    boolean

    isUpdating

    Gets a value that indicates whether the control is currently being updated.

    Inherited From
    Control
    Type
    boolean

    rightToLeft

    Gets a value indicating whether the control is hosted in an element with right-to-left layout.

    Inherited From
    Control
    Type
    boolean

    selectedIndex

    Gets or sets the index of the currently selected (active) tab.

    Type
    number

    selectedTab

    Gets or sets the Tab object that is currently selected.

    Type
    Tab

    tabOrder

    Gets or sets a value of the **tabindex** attribute associated with the control.

    **tabindex** attribute value can be defined statically for a Wijmo control by specifying it on the control's host HTML element. But this value can't be changed later during application lifecycle, because Wijmo controls have complex structure, and the control may need to propagate this attribute value to its internal element to work properly.

    Because of this, to read or change control's **tabindex** dynamically, you should do it using this property.

    Inherited From
    Control
    Type
    number

    tabs

    Gets an array of Tab objects whose header and pane properties determine the content of the TabPanel control.

    Type
    ObservableArray

    Methods

    addEventListener

    addEventListener(target: EventTarget, type: string, fn: any, capture?: boolean, passive?: boolean): void
    

    Adds an event listener to an element owned by this Control.

    The control keeps a list of attached listeners and their handlers, making it easier to remove them when the control is disposed (see the dispose and removeEventListener methods).

    Failing to remove event listeners may cause memory leaks.

    The passive parameter is set to false by default, which means the event handler may call event.preventDefault(). If you are adding passive handlers to touch or wheel events, setting this parameter to true will improve application performance.

    For details on passive event listeners, please see Improving scrolling performance with passive listeners.

    Parameters
    • target: EventTarget

      Target element for the event.

    • type: string

      String that specifies the event.

    • fn: any

      Function to execute when the event occurs.

    • capture: boolean Optional

      Whether the listener should be handled by the control before it is handled by the target element.

    • passive: boolean Optional

      Indicates that the handler will never call preventDefault().

    Inherited From
    Control
    Returns
    void

    applyTemplate

    applyTemplate(classNames: string, template: string, parts: Object, namePart?: string): HTMLElement
    

    Applies the template to a new instance of a control, and returns the root element.

    This method should be called by constructors of templated controls. It is responsible for binding the template parts to the corresponding control members.

    For example, the code below applies a template to an instance of an InputNumber control. The template must contain elements with the 'wj-part' attribute set to 'input', 'btn-inc', and 'btn-dec'. The control members '_tbx', '_btnUp', and '_btnDn' will be assigned references to these elements.

    ```typescript this.applyTemplate('wj-control wj-inputnumber', templateString, { _tbx: 'input', _btnUp: 'btn-inc', _btnDn: 'btn-dec' }, 'input'); ``````

    Parameters
    • classNames: string

      Names of classes to add to the control's host element.

    • template: string

      An HTML string that defines the control template.

    • parts: Object

      A dictionary of part variables and their names.

    • namePart: string Optional

      Name of the part to be named after the host element. This determines how the control submits data when used in forms.

    Inherited From
    Control
    Returns
    HTMLElement

    beginUpdate

    beginUpdate(): void
    

    Suspends notifications until the next call to endUpdate.

    Inherited From
    Control
    Returns
    void

    containsFocus

    containsFocus(): boolean
    

    Checks whether this control contains the focused element.

    Inherited From
    Control
    Returns
    boolean

    deferUpdate

    deferUpdate(fn: Function): void
    

    Executes a function within a beginUpdate/endUpdate block.

    The control will not be updated until the function has been executed. This method ensures endUpdate is called even if the function throws an exception.

    Parameters
    Inherited From
    Control
    Returns
    void

    dispose

    dispose(): void
    

    Disposes of the control by removing its association with the host element.

    The dispose method automatically removes any event listeners added with the addEventListener method.

    Calling the dispose method is important in applications that create and remove controls dynamically. Failing to dispose of the controls may cause memory leaks.

    Inherited From
    Control
    Returns
    void

    Static disposeAll

    disposeAll(e?: HTMLElement): void
    

    Disposes of all Wijmo controls contained in an HTML element.

    Parameters
    Inherited From
    Control
    Returns
    void

    endUpdate

    endUpdate(): void
    

    Resumes notifications suspended by calls to beginUpdate.

    Inherited From
    Control
    Returns
    void

    focus

    focus(): void
    

    Sets the focus to this control.

    Inherited From
    Control
    Returns
    void

    Static getControl

    getControl(element: any): Control
    

    Gets the control that is hosted in a given DOM element.

    Parameters
    • element: any

      The DOM element that hosts the control, or a CSS selector for the host element (e.g. '#theCtrl').

    Inherited From
    Control
    Returns
    Control

    getTab

    getTab(id: string): Tab
    

    Gets a Tab by id or by header content.

    Parameters
    Returns
    Tab

    getTemplate

    getTemplate(): string
    

    Gets the HTML template used to create instances of the control.

    This method traverses up the class hierarchy to find the nearest ancestor that specifies a control template. For example, if you specify a prototype for the ComboBox control, which does not specify a template, it will override the template defined by the DropDown base class (the nearest ancestor that does specify a template).

    Inherited From
    Control
    Returns
    string

    initialize

    initialize(options: any): void
    

    Initializes the control by copying the properties from a given object.

    This method allows you to initialize controls using plain data objects instead of setting the value of each property in code.

    For example:

    ```typescript grid.initialize({ itemsSource: myList, autoGenerateColumns: false, columns: [ { binding: 'id', header: 'Code', width: 130 }, { binding: 'name', header: 'Name', width: 60 } ] });

    // is equivalent to grid.itemsSource = myList; grid.autoGenerateColumns = false; // etc. ```

    The initialization data is type-checked as it is applied. If the initialization object contains unknown property names or invalid data types, this method will throw.

    Parameters
    • options: any

      Object that contains the initialization data.

    Inherited From
    Control
    Returns
    void

    invalidate

    invalidate(fullUpdate?: boolean): void
    

    Invalidates the control causing an asynchronous refresh.

    Parameters
    • fullUpdate: boolean Optional

      Whether to update the control layout as well as the content.

    Inherited From
    Control
    Returns
    void

    Static invalidateAll

    invalidateAll(e?: HTMLElement): void
    

    Invalidates all Wijmo controls contained in an HTML element.

    Use this method when your application has dynamic panels that change the control's visibility or dimensions. For example, splitters, accordions, and tab controls usually change the visibility of its content elements. In this case, failing to notify the controls contained in the element may cause them to stop working properly.

    If this happens, you must handle the appropriate event in the dynamic container and call the invalidateAll method so the contained Wijmo controls will update their layout information properly.

    Parameters
    • e: HTMLElement Optional

      Container element. If set to null, all Wijmo controls on the page will be invalidated.

    Inherited From
    Control
    Returns
    void

    onGotFocus

    onGotFocus(e?: EventArgs): void
    

    Raises the gotFocus event.

    Parameters
    Inherited From
    Control
    Returns
    void

    onInvalidInput

    onInvalidInput(e: CancelEventArgs): void
    

    Raises the invalidInput event.

    If the event handler cancels the event, the control will keep the invalid input and the focus.

    Parameters
    Inherited From
    Control
    Returns
    void

    onLostFocus

    onLostFocus(e?: EventArgs): void
    

    Raises the lostFocus event.

    Parameters
    Inherited From
    Control
    Returns
    void

    onRefreshed

    onRefreshed(e?: EventArgs): void
    

    Raises the refreshed event.

    Parameters
    Inherited From
    Control
    Returns
    void

    onRefreshing

    onRefreshing(e?: EventArgs): void
    

    Raises the refreshing event.

    Parameters
    Inherited From
    Control
    Returns
    void

    onSelectedIndexChanged

    onSelectedIndexChanged(e?: EventArgs): void
    

    Raises the selectedIndexChanged event.

    Parameters
    Returns
    void

    refresh

    refresh(fullUpdate?: boolean): void
    

    Refreshes the control.

    Parameters
    • fullUpdate: boolean Optional

      Whether to update the control layout as well as the content.

    Inherited From
    Control
    Returns
    void

    Static refreshAll

    refreshAll(e?: HTMLElement): void
    

    Refreshes all Wijmo controls contained in an HTML element.

    This method is similar to invalidateAll, except the controls are updated immediately rather than after an interval.

    Parameters
    • e: HTMLElement Optional

      Container element. If set to null, all Wijmo controls on the page will be invalidated.

    Inherited From
    Control
    Returns
    void

    removeEventListener

    removeEventListener(target?: EventTarget, type?: string, fn?: any, capture?: boolean): number
    

    Removes one or more event listeners attached to elements owned by this Control.

    Parameters
    • target: EventTarget Optional

      Target element for the event. If null, removes listeners attached to all targets.

    • type: string Optional

      String that specifies the event. If null, removes listeners attached to all events.

    • fn: any Optional

      Handler to remove. If null, removes all handlers.

    • capture: boolean Optional

      Whether the listener is capturing. If null, removes capturing and non-capturing listeners.

    Inherited From
    Control
    Returns
    number

    Events

    gotFocus

    Occurs when the control gets the focus.

    Inherited From
    Control
    Arguments
    EventArgs

    invalidInput

    Occurs when invalid input is detected.

    Invalid input may occur when the user types or pastes a value that cannot be converted to the proper type, or a value that is outside the valid range.

    If the event handler cancels the event, the control will retain the invalid content and the focus, so users can correct the error.

    If the event is not canceled, the control will ignore the invalid input and will retain the original content.

    Inherited From
    Control
    Arguments
    CancelEventArgs

    lostFocus

    Occurs when the control loses the focus.

    Inherited From
    Control
    Arguments
    EventArgs

    refreshed

    Occurs after the control has refreshed its contents.

    Inherited From
    Control
    Arguments
    EventArgs

    refreshing

    Occurs when the control is about to refresh its contents.

    Inherited From
    Control
    Arguments
    EventArgs

    selectedIndexChanged

    Occurs when the value of the selectedIndex property changes.

    Arguments
    EventArgs