JavaScript/jQuery LoadPanel API

The LoadPanel is an overlay widget notifying the viewer that loading is in progress.

import LoadPanel from "devextreme/ui/load_panel"

DevExtreme widgets are integrated with many popular libraries and frameworks. See the Installation section (for JavaScript libraries) or the Prerequisites and Installation section (for ASP.NET MVC framework) to find details on setting up DevExtreme with a particular library or framework.

The following code shows how to create the LoadPanel widget using every supported library and framework. For more details on working with widgets in these libraries and frameworks, see the Widget Basics topic for jQuery, Angular, AngularJS, Knockout or ASP.NET MVC.

jQuery

JavaScript

HTML

$(function () {
    $("#loadPanel").dxLoadPanel({
        closeOnOutsideClick: true,
        visible: true
    });
});

<div id="loadPanel"></div>

Angular

HTML

TypeScript

<dx-load-panel
    [closeOnOutsideClick]="true"
    [(visible)]="isLoadPanelVisible">
</dx-load-panel>

import { DxLoadPanelModule } from 'devextreme-angular';
// ...
export class AppComponent {
    isLoadPanelVisible = true;
}
@NgModule({
    imports: [
        // ...
        DxLoadPanelModule
    ],
    // ...
})

AngularJS

HTML

JavaScript

<div ng-controller="DemoController">
    <div dx-load-panel="{
        closeOnOutsideClick: true,
        bindingOptions: {
            visible: 'isLoadPanelVisible'
        }
    }"></div>
</div>

angular.module('DemoApp', ['dx'])
    .controller('DemoController', function DemoController($scope) {
        $scope.isLoadPanelVisible = true;
    });

Knockout

HTML

JavaScript

<div data-bind="dxLoadPanel: {
    closeOnOutsideClick: true,
    visible: isLoadPanelVisible
}"></div>

var viewModel = {
    isLoadPanelVisible: ko.observable(true)
};
ko.applyBindings(viewModel);

ASP.NET MVC Controls

Razor C#

Razor VB

@(Html.DevExtreme().LoadPanel()
    .ID("loadPanel")
    .CloseOnOutsideClick(true)
    .Visible(true)
)

@(Html.DevExtreme().LoadPanel() _
    .ID("loadPanel") _
    .CloseOnOutsideClick(True) _
    .Visible(True)
)

View Demo

Configuration

An object that defines configuration options for the LoadPanel widget.

Name	Description
animation	Configures widget visibility animations. This object contains two fields: show and hide.
closeOnOutsideClick	Specifies whether to close the widget if a user clicks outside it.
deferRendering	Specifies whether to render the widget's content when it is displayed. If false, the content is rendered immediately.
delay	The delay in milliseconds after which the load panel is displayed.
elementAttr	Specifies the attributes to be attached to the widget's root element.
focusStateEnabled	Specifies whether or not the widget can be focused.
height	Specified 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.
indicatorSrc	A URL pointing to an image to be used as a load indicator.
maxHeight	Specifies the maximum height the widget can reach while resizing.
maxWidth	Specifies the maximum width the widget can reach while resizing.
message	The text displayed in the load panel.
minHeight	Specifies the minimum height the widget can reach while resizing.
minWidth	Specifies the minimum width the widget can reach while resizing.
onContentReady	A handler for the contentReady event. Executed when the widget's content is ready. This handler may be executed multiple times during the widget's lifetime depending on the number of times its content changes.
onDisposing	A handler for the disposing event. Executed when the widget is removed from the DOM using the remove(), empty(), or html() jQuery methods only.
onHidden	A handler for the hidden event.
onHiding	A handler for the hiding event.
onInitialized	A handler for the initialized event. Executed only once, after the widget is initialized.
onOptionChanged	A handler for the optionChanged event. Executed after an option of the widget is changed.
onShowing	A handler for the showing event.
onShown	A handler for the shown event.
position	Positions the widget.
rtlEnabled	Switches the widget to a right-to-left representation.
shading	A Boolean value specifying whether or not the main screen is inactive while the widget is active.
shadingColor	Specifies the shading color.
showIndicator	A Boolean value specifying whether or not to show a load indicator.
showPane	A Boolean value specifying whether or not to show the pane behind the load indicator.
visible	A Boolean value specifying whether or not the widget is visible.
width	Specifies the widget's width.

Methods

This section describes members used to manipulate the widget.

Name	Description
beginUpdate()	Prevents the widget from refreshing until the endUpdate() method is called.
content()	Gets the widget's content.
defaultOptions(rule)	Specifies the device-dependent default configuration options for this component.
dispose()	Disposes of all the resources allocated to the LoadPanel instance.
element()	Gets the root widget element.
endUpdate()	Refreshes the widget after a call of the beginUpdate() method.
getInstance(element)	Gets the instance of a widget found using its DOM node.
hide()	Hides the widget.
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.
repaint()	Recalculates the widget's size and position without rerendering.
show()	Shows the widget.
toggle(showing)	Shows or hides the widget depending on the argument.

Events

This section describes events fired by this widget.

Name	Description
contentReady	Raised when the widget's content is ready.
disposing	Raised when the widget is removed from the DOM using the remove(), empty(), or html() jQuery methods only.
hidden	Fires after the overlay is hidden.
hiding	Fires before hiding the overlay.
initialized	Raised only once, after the widget is initialized.
optionChanged	Raised after a widget option is changed.
showing	Fires before showing the overlay.
shown	Fires after the overlay is shown.

JavaScript/jQuery LoadPanel API

jQuery

Angular

AngularJS

Knockout

ASP.NET MVC Controls

See Also

Configuration

Methods

Events

See Also