ASP.NET Core MVC Controls | ComponentOne
In This Topic
    FlexGridDetailProvider Class
    In This Topic
    File
    wijmo.grid.detail.js
    Module
    wijmo.grid.detail

    Implements detail rows for FlexGrid controls.

    To add detail rows to a FlexGrid control, create an instance of a FlexGridDetailProvider and set the createDetailCell property to a function that creates elements to be displayed in the detail cells.

    For example:

    import { FlexGrid } from '@mescius/wijmo.grid';
    import { FlexGridDetailProvider } from '@mescius/wijmo.grid.detail';

    // create FlexGrid to show categories let gridCat = new FlexGrid('#gridCat', { itemsSource: getCategories(); });
    // add detail rows showing products in each category let detailProvider = new FlexGridDetailProvider(gridCat, { createDetailCell: (row) => { let cell = document.createElement('div'); new FlexGrid(cell, { itemsSource: getProducts(row.dataItem.CategoryID) }); return cell; } });

    The FlexGridDetailProvider provides a detailVisibilityMode property that determines when the detail rows should be displayed.

    The default value for this property is **ExpandSingle**, which adds collapse/expand icons to the row headers.

    The example below shows how you can use a FlexGridDetailProvider to add different types of detail to the rows in a FlexGrid:

    {@sample Grid/Rows/RowDetail/Overview/purejs Example}

    Constructor

    constructor

    constructor(grid: FlexGrid, options?: any): FlexGridDetailProvider
    

    Initializes a new instance of the FlexGridDetailProvider class.

    Parameters
    Returns
    FlexGridDetailProvider

    Properties

    createDetailCell

    Gets or sets the callback function that creates detail cells.

    The callback function takes a Row as a parameter and returns an HTML element representing the row details. For example:

    // create detail cells for a given row
    dp.createDetailCell = (row) => {
        let cell = document.createElement('div');
        new FlexGrid(cell, {
            itemsSource: getProducts(row.dataItem.CategoryID),
            headersVisibility: 'Column'
        });
        return cell;
    };
    
    

    Type
    ICreateDetailCell

    detailVisibilityMode

    Gets or sets a value that determines when row details are displayed.

    The default value for this property is **DetailVisibilityMode.ExpandSingle**.

    Type
    DetailVisibilityMode

    disposeDetailCell

    Gets or sets the callback function that disposes of detail cells.

    The callback function takes a Row as a parameter and disposes of any resources associated with the detail cell.

    This function is optional. Use it in cases where the createDetailCell function allocates resources that are not automatically garbage-collected.

    Type
    IDisposeDetailCell

    grid

    Gets the FlexGrid that owns this FlexGridDetailProvider.

    Type
    FlexGrid

    isAnimated

    Gets or sets a value that indicates whether to use animation when showing row details.

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

    Type
    boolean

    keyActionEnter

    Gets or sets the action to perform when the ENTER key is pressed.

    The default setting for this property is None, which lets the grid handle the key. The other option is ToggleDetail, which handles the Enter key to toggle the display of the row details.

    Type
    KeyAction

    maxHeight

    Gets or sets the maximum height of the detail rows, in pixels.

    The default value for this property is **null**, which means there's no upper limit to the detail row height.

    Type
    number

    rowHasDetail

    Gets or sets the callback function that determines whether a row has details.

    The callback function takes a Row as a parameter and returns a boolean value that indicates whether the row has details. For example:

    // remove details from items with odd CategoryID
    dp.rowHasDetail = (row) => {
        return row.dataItem.CategoryID % 2 == 0;
    };
    
    

    Setting this property to null means all regular data rows (not group rows or new item templates) have details.

    Type
    IRowHasDetail

    Methods

    getDetailRow

    getDetailRow(row: any): DetailRow
    

    Gets the detail row associated with a given grid row.

    Parameters
    • row: any

      Row or index of the row to investigate.

    Returns
    DetailRow

    hideDetail

    hideDetail(row?: Row | number): void
    

    Hides the detail row for a given row.

    Parameters
    • row: wijmo.grid.Row | number Optional

      Row or index of the row that will have its details hidden. This parameter is optional. If not provided, all detail rows are hidden.

    Returns
    void

    isDetailAvailable

    isDetailAvailable(row: any): boolean
    

    Gets a value that determines if a row has details to show.

    Parameters
    • row: any

      Row or index of the row to investigate.

    Returns
    boolean

    isDetailVisible

    isDetailVisible(row: any): boolean
    

    Gets a value that determines if a row's details are visible.

    Parameters
    • row: any

      Row or index of the row to investigate.

    Returns
    boolean

    showDetail

    showDetail(row: wijmo.grid.Row | number, hideOthers?: boolean): void
    

    Shows the detail row for a given row.

    Parameters
    • row: wijmo.grid.Row | number

      Row or index of the row that will have its details shown.

    • hideOthers: boolean Optional

      Whether to hide details for all other rows.

    Returns
    void