ASP.NET MVC Controls | ComponentOne
In This Topic
    LayoutItem Class
    In This Topic
    File
    c1.nav.js
    Module
    c1.nav
    Base Class
    DisposableObject
    Derived Classes
    Group, Tile

    Defines the base class for the layoutitem. Now there are two kinds of layoutitems: Tile and Group.

    Constructor

    constructor

    constructor(opts?: any): LayoutItem
    

    Initializes a new LayoutItem.

    Parameters
    • opts: any Optional

      JavaScript object containing initialization data for the layoutitem.

    Returns
    LayoutItem

    Properties

    hostElement

    Gets the outest element which represents this layoutitem.

    Type
    HTMLElement

    layout

    Gets the layout which owns this item.

    Type
    LayoutBase

    parent

    Gets the parent which owns this layoutitem.

    It could be a Group or a LayoutBase.

    Type
    any

    Methods

    addEventListener

    addEventListener(target: EventTarget, type: string, fn: any, capture?: 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.

    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 is capturing.

    Inherited From
    DisposableObject
    Returns
    void

    dispose

    dispose(fullDispose?: boolean): void
    

    Disposes the object.

    Parameters
    • fullDispose: boolean Optional

      A boolean value decides wehter to keep the current status when disposing. If true, all the current status will be cleared. Otherwise, keep the current status.

    Returns
    void

    draw

    draw(): void
    

    Draws the layout item.

    Adds the codes to implement the paiting parts.

    Returns
    void

    initialize

    initialize(options: any): void
    

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

    Parameters
    • options: any

      Object that contains the initialization data.

    Returns
    void

    remove

    remove(): boolean
    

    Removes the current layoutitem from its parent.

    Returns
    boolean

    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
    DisposableObject
    Returns
    number

    render

    render(container?: HTMLElement): HTMLElement
    

    Renders the layoutitem in the specified container.

    Parameters
    • container: HTMLElement Optional

      the container element where the layoutitem renders in.

    Returns
    HTMLElement