Configuration

An object that defines configuration properties for the LoadPanel UI component.

See Also

animation

Configures UI component visibility animations. This object contains two fields: show and hide.

Type:

Object

Default Value: null

Set this object to null or undefined to disable animation.

closeOnOutsideClick Deprecated

Use the hideOnOutsideClick property instead.

Specifies whether to close the UI component if a user clicks outside it.

Type:

Boolean

|

Function

Function parameters:
event:

Event (jQuery or EventObject)

The event that caused UI component closing. It is a EventObject or a jQuery.Event when you use jQuery.

Return Value:

Boolean

true if the UI component should be closed; otherwise false.

Default Value: false

container

Specifies the UI component's container.

Default Value: undefined

This property accepts one of the following values:

  • A CSS selector, or a jQuery selector if you use jQuery

    jQuery
    index.js
    $(function(){
        $("#loadPanelContainer").dxLoadPanel({
            // ...
            container: '#containerElement'
        });
    });
    Angular
    app.component.html
    <dx-load-panel ... 
        container="#containerElement"
    >
    </dx-load-panel>
    Vue
    App.vue
    <template>
        <DxLoadPanel ... 
            container="#containerElement"
        >
        </DxLoadPanel>
    </template>
    <script>
    import { DxLoadPanel } from 'devextreme-vue/load-panel';
    
    export default {
        components: {
            DxLoadPanel
        }
    };
    </script>
    React
    App.js
    import LoadPanel from 'devextreme-react/load-panel';
    // ...
    function App() {
        return (
            <LoadPanel ... 
                container="#containerElement"
            >
            </LoadPanel>
        );
    }
  • A jQuery wrapper

    jQuery
    index.js
    $(function(){
        $("#loadPanelContainer").dxLoadPanel({
            // ...
            container: $('#containerElement')
        });
    });
  • A DOM element

    jQuery
    index.js
    $(function(){
        $("#loadPanelContainer").dxLoadPanel({
            // ...
            container: document.getElementById('#containerElement')
        });
    });
    Angular
    app.component.html
    app.component.ts
    <dx-load-panel ... 
        [container]="containerElement"
    >
    </dx-load-panel>
    // ...
    export class AppComponent {
        containerElement: Element;
        constructor() {
            this.containerElement = document.getElementById('#containerElement') as Element;
        }
    }
    Vue
    App.vue
    <template>
        <DxLoadPanel ... 
            :container="containerElement"
        >
        </DxLoadPanel>
    </template>
    <script>
    import { DxLoadPanel } from 'devextreme-vue/load-panel';
    
    export default {
        components: {
            DxLoadPanel
        },
        data() {
            return {
                containerElement: null
            }
        },
        mounted() {
            this.containerElement = document.getElementById('containerElement');
        }
    };
    </script>
    React
    App.js
    import React, { useEffect, useState } from 'react';
    import LoadPanel from 'devextreme-react/load-panel';
    // ...
    function App() {
        const [containerElement, setContainerElement] = useState(null);
        useEffect(() => {
            setContainerElement(document.getElementById('containerElement'));
        }, []);
        return (
            <LoadPanel ... 
                container={containerElement}
            >
            </LoadPanel>
        );
    }

The UI component defines the default container on its initialization. This default container can be one of the following (if the element is absent, the component selects the next one):

If you set this property to a specific element, the shading applies to this element. The LoadPanel calculates its size relative to the element.

copyRootClassesToWrapper Deprecated

IMPORTANT
Use the wrapperAttr property instead.

Copies your custom CSS classes from the root element to the wrapper element.

Type:

Boolean

Default Value: false

This property allows you to use CSS for wrapper element configuration. You can customize the shade, resize, and drag zones.

The following markup illustrates relations between wrapper and root elements when you set copyRootClassesToWrapper to true:

HTML
<body>

    <!-- The following element is the root element on which the component is initialized. -->
    <!-- Specify classes to be copied to the wrapper element here. -->
    <div id="loadPanel" class="custom-class" ... ></div>

    <!-- The following element is the wrapper element. -->
    <!-- Custom classes are automatically copied from the root element. -->
    <div class="dx-overlay-wrapper dx-loadpanel-wrapper custom-class" ... > 

        <!-- The following element contains component content. -->
        <div class="dx-overlay-content" ... >
            <!-- ... -->
        </div>
    </div>
</body>

deferRendering

Specifies whether to render the UI component's content when it is displayed. If false, the content is rendered immediately.

Type:

Boolean

Default Value: true

delay

The delay in milliseconds after which the load panel is displayed.

Type:

Number

Default Value: 0

elementAttr Deprecated

Use the wrapperAttr property instead.

Specifies the global attributes to be attached to the UI component's container element.

Type: any
Default Value: {}

jQuery
$(function(){
    $("#loadPanelContainer").dxLoadPanel({
        // ...
        elementAttr: {
            id: "elementId",
            class: "class-name"
        }
    });
});
Angular
HTML
TypeScript
<dx-load-panel ...
    [elementAttr]="{ id: 'elementId', class: 'class-name' }">
</dx-load-panel>
import { DxLoadPanelModule } from "devextreme-angular";
// ...
export class AppComponent {
    // ...
}
@NgModule({
    imports: [
        // ...
        DxLoadPanelModule
    ],
    // ...
})
Vue
App.vue
<template>
    <DxLoadPanel ...
        :element-attr="loadPanelAttributes">
    </DxLoadPanel>
</template>

<script>
import DxLoadPanel from 'devextreme-vue/load-panel';

export default {
    components: {
        DxLoadPanel
    },
    data() {
        return {
            loadPanelAttributes: {
                id: 'elementId',
                class: 'class-name'
            }
        }
    }
}
</script>
React
App.js
import React from 'react';

import LoadPanel from 'devextreme-react/load-panel';

class App extends React.Component {
    loadPanelAttributes = {
        id: 'elementId',
        class: 'class-name'
    }

    render() {
        return (
            <LoadPanel ...
                elementAttr={this.loadPanelAttributes}>
            </LoadPanel>
        );
    }
}
export default App;

focusStateEnabled

Specifies whether or not the UI component can be focused.

Type:

Boolean

Default Value: false

height

Specifies the UI component's height.

Type:

Number

|

String

|

Function

Return Value:

Number

|

String

The UI component's height.

Default Value: 90, 60 (Material)

This property accepts a value of one of the following types:

  • Number
    The height in pixels.

  • String
    A CSS-accepted measurement of height. For example, "55px", "20vh", "80%", "inherit".

  • Function (deprecated since v21.2)
    Refer to the W0017 warning description for information on how you can migrate to viewport units.

The LoadPanel calculates its height relative to one of the elements in the following priority: container => position.of => window.

hideOnOutsideClick

Specifies whether to hide the UI component if a user clicks outside it.

Type:

Boolean

|

Function

Function parameters:
event:

Event (jQuery or EventObject)

The event that caused UI component hiding. It is a EventObject or a jQuery.Event when you use jQuery.

Return Value:

Boolean

true if the UI component should be hidden; otherwise false.

Default Value: false

The function passed to this property enables you to specify a custom condition for UI component hiding. For instance, you can prevent hiding until a user clicks a certain element.

jQuery
JavaScript
$(function () {
    $("#loadPanelContainer").dxLoadPanel({
        // ...
        hideOnOutsideClick: function(e) {
            return e.target === $("#someElement").get()[0];
        }
    });
});
Angular
TypeScript
HTML
import { DxLoadPanelModule } from "devextreme-angular";
// ...
export class AppComponent {
    // ...
    hideOnOutsideClick(e) {
        return e.target === document.getElementById("someElement");
    }
}
@NgModule({
     imports: [
         // ...
         DxLoadPanelModule
     ],
     // ...
 })
<dx-load-panel ...
    [hideOnOutsideClick]="hideOnOutsideClick">
</dx-load-panel>
Vue
App.vue
<template>
    <DxLoadPanel ....
        :hide-on-outside-click="hideOnOutsideClick">
    </DxLoadPanel>
</template>

<script>
import 'devextreme/dist/css/dx.light.css';

import DxLoadPanel from 'devextreme-vue/load-panel';

export default {
    components: {
        DxLoadPanel
    },
    methods: {
        hideOnOutsideClick (e) {
            return e.target === document.getElementById("someElement");
        }
    }
}
</script>
React
App.js
import React from 'react';
import 'devextreme/dist/css/dx.light.css';

import LoadPanel from 'devextreme-react/load-panel';

const hideOnOutsideClick = (e) => {
    return e.target === document.getElementById("someElement");
};

export default function App() {
    return (
        <LoadPanel ...
            hideOnOutsideClick={hideOnOutsideClick}>
        </LoadPanel>
    );
}

The hideOnOutsideClick function is called when a user clicks the UI component or outside it.

Popup Demo

hideOnParentScroll

Specifies whether to hide the LoadPanel when users scroll one of its parent elements.

Type:

Boolean

Default Value: false

hint

Specifies text for a hint that appears when a user pauses on the UI component.

Type:

String

Default Value: undefined

hoverStateEnabled

Specifies whether the UI component changes its state when a user pauses on it.

Type:

Boolean

Default Value: false

indicatorSrc

A URL pointing to an image to be used as a load indicator.

Type:

String

Default Value: ''

maxHeight

Specifies the maximum height the UI component can reach while resizing.

Type:

Number

|

String

|

Function

Return Value:

Number

|

String

The maximum height.

Default Value: 60 (Material)

This property accepts a value of one of the following types:

  • Number
    The height in pixels.

  • String
    A CSS-accepted measurement of height. For example, "55px", "20vh", "80%", "inherit".

  • Function (deprecated since v21.2)
    Refer to the W0017 warning description for information on how you can migrate to viewport units.

maxWidth

Specifies the maximum width the UI component can reach while resizing.

Type:

Number

|

String

|

Function

Return Value:

Number

|

String

The maximum width.

Default Value: 60 (Material)

This property accepts a value of one of the following types:

  • Number
    The width in pixels.

  • String
    A CSS-accepted measurement of width. For example, "55px", "20vw", "80%", "auto", "inherit".

  • Function (deprecated since v21.2)
    Refer to the W0017 warning description for information on how you can migrate to viewport units.

message

Specifies the text displayed in the load panel. Ignored in the Material Design theme.

Type:

String

Default Value: 'Loading ...', '' (Material)

minHeight

Specifies the minimum height the UI component can reach while resizing.

Type:

Number

|

String

|

Function

Return Value:

Number

|

String

The minimum height.

Default Value: null

This property accepts a value of one of the following types:

  • Number
    The height in pixels.

  • String
    A CSS-accepted measurement of height. For example, "55px", "20vh", "80%", "inherit".

  • Function (deprecated since v21.2)
    Refer to the W0017 warning description for information on how you can migrate to viewport units.

minWidth

Specifies the minimum width the UI component can reach while resizing.

Type:

Number

|

String

|

Function

Return Value:

Number

|

String

The minimum width.

Default Value: null

This property accepts a value of one of the following types:

  • Number
    The width in pixels.

  • String
    A CSS-accepted measurement of width. For example, "55px", "20vw", "80%", "auto", "inherit".

  • Function (deprecated since v21.2)
    Refer to the W0017 warning description for information on how you can migrate to viewport units.

onContentReady

A function that is executed when the UI component's content is ready and each time the content is changed.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
Name Type Description
component

LoadPanel

The UI component's instance.

element

HTMLElement | jQuery

The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery.

model any

Model data. Available only when using Knockout.

Default Value: null

onDisposing

A function that is executed before the UI component is disposed of.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
Name Type Description
component

LoadPanel

The UI component's instance.

element

HTMLElement | jQuery

The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery.

model any

Model data. Available only if you use Knockout.

Default Value: null

onHidden

A function that is executed after the UI component is hidden.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
Name Type Description
component

LoadPanel

The UI component's instance.

element

HTMLElement | jQuery

The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery.

model any

Model data. Available only if Knockout is used.

Default Value: null

onHiding

A function that is executed before the UI component is hidden.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
Name Type Description
cancel

Boolean

Set this field to true if you want the LoadPanel to remain visible.

component

LoadPanel

The UI component's instance.

element

HTMLElement | jQuery

The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery.

model any

Model data. Available only if Knockout is used.

Default Value: null

onInitialized

A function used in JavaScript frameworks to save the UI component instance.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
Name Type Description
component

LoadPanel

The UI component's instance.

element

HTMLElement | jQuery

The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery.

Default Value: null

See Also

onOptionChanged

A function that is executed after a UI component property is changed.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
Name Type Description
model any

Model data. Available only if you use Knockout.

fullName

String

The path to the modified property that includes all parent properties.

element

HTMLElement | jQuery

The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery.

component

LoadPanel

The UI component's instance.

name

String

The modified property if it belongs to the first level. Otherwise, the first-level property it is nested into.

value any

The modified property's new value.

previousValue any

The UI component's previous value.

Default Value: null

The following example shows how to subscribe to component property changes:

jQuery
index.js
$(function() {
    $("#loadPanelContainer").dxLoadPanel({
        // ...
        onOptionChanged: function(e) {
            if(e.name === "changedProperty") {
                // handle the property change here
            }
        }
    });
});
Angular
app.component.html
app.component.ts
app.module.ts
<dx-load-panel ...
    (onOptionChanged)="handlePropertyChange($event)"> 
</dx-load-panel>
import { Component } from '@angular/core'; 

@Component({ 
    selector: 'app-root', 
    templateUrl: './app.component.html', 
    styleUrls: ['./app.component.css'] 
}) 

export class AppComponent { 
    // ...
    handlePropertyChange(e) {
        if(e.name === "changedProperty") { 
            // handle the property change here
        }
    }
}
import { BrowserModule } from '@angular/platform-browser'; 
import { NgModule } from '@angular/core'; 
import { AppComponent } from './app.component'; 
import { DxLoadPanelModule } from 'devextreme-angular'; 

@NgModule({ 
    declarations: [ 
        AppComponent 
    ], 
    imports: [ 
        BrowserModule, 
        DxLoadPanelModule 
    ], 
    providers: [ ], 
    bootstrap: [AppComponent] 
}) 

export class AppModule { }  
Vue
App.vue
<template> 
    <DxLoadPanel ...
        @option-changed="handlePropertyChange"
    />            
</template> 

<script>  
import 'devextreme/dist/css/dx.light.css'; 
import DxLoadPanel from 'devextreme-vue/load-panel'; 

export default { 
    components: { 
        DxLoadPanel
    }, 
    // ...
    methods: { 
        handlePropertyChange: function(e) {
            if(e.name === "changedProperty") {
                // handle the property change here
            }
        }
    } 
} 
</script> 
React
App.js
import React from 'react';  
import 'devextreme/dist/css/dx.light.css'; 

import LoadPanel from 'devextreme-react/load-panel'; 

const handlePropertyChange = (e) => {
    if(e.name === "changedProperty") {
        // handle the property change here
    }
}

export default function App() { 
    return ( 
        <LoadPanel ...
            onOptionChanged={handlePropertyChange}
        />        
    ); 
} 

onShowing

A function that is executed before the UI component is displayed.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
Name Type Description
component

LoadPanel

The UI component's instance.

element

HTMLElement | jQuery

The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery.

model any

Model data. Available only if Knockout is used.

cancel

Boolean

Set this field to true if you want to prevent the LoadPanel from being displayed.

Default Value: null

onShown

A function that is executed after the UI component is displayed.

Type:

Function

Function parameters:
e:

Object

Information about the event.

Object structure:
Name Type Description
component

LoadPanel

The UI component's instance.

element

HTMLElement | jQuery

The UI component's container. It is an HTML Element or a jQuery Element when you use jQuery.

model any

Model data. Available only if Knockout is used.

Default Value: null

position

Positions the UI component.

Default Value: { my: 'center', at: 'center', of: window }
Accepted Values: 'bottom' | 'center' | 'left' | 'left bottom' | 'left top' | 'right' | 'right bottom' | 'right top' | 'top'
Raised Events: positioned

If you do not specify the container property and set the position.of to a specific element, the shading applies to this element. The LoadPanel calculates its size relative to the element.

rtlEnabled

Switches the UI component to a right-to-left representation.

Type:

Boolean

Default Value: false

When this property is set to true, the UI component text flows from right to left, and the layout of elements is reversed. To switch the entire application/site to the right-to-left representation, assign true to the rtlEnabled field of the object passed to the DevExpress.config(config) method.

JavaScript
DevExpress.config({
    rtlEnabled: true
});

DataGrid Demo Navigation UI Demo Editors Demo

shading

Specifies whether to shade the background when the UI component is active.

Type:

Boolean

Default Value: true

Shading applies to the first specified element in the following sequence: container => position.of => window

If this property is set to true, the LoadPanel is displayed in modal mode, and users cannot interact with other UI components.

shadingColor

Specifies the shading color. Applies only if shading is enabled.

Type:

String

Default Value: 'transparent', '' (Android, iOS)

This property supports the following colors:

showIndicator

A Boolean value specifying whether or not to show a load indicator.

Type:

Boolean

Default Value: true

If this property is set to true, a message is displayed and a load indicator turns in a circle while the view's content is loaded. Set this property to false to display only the text message. This can help avoid problems with animation used for the load indicator when running on a slow device.

showPane

A Boolean value specifying whether or not to show the pane behind the load indicator.

Type:

Boolean

Default Value: true

visible

A Boolean value specifying whether or not the UI component is visible.

Type:

Boolean

Default Value: false
Raised Events: hiding, showing

width

Specifies the UI component's width.

Type:

Number

|

String

|

Function

Return Value:

Number

|

String

The UI component's width.

Default Value: 222, 60 (Material)

This property accepts a value of one of the following types:

  • Number
    The width in pixels.

  • String
    A CSS-accepted measurement of width. For example, "55px", "20vw", "80%", "auto", "inherit".

  • Function (deprecated since v21.2)
    Refer to the W0017 warning description for information on how you can migrate to viewport units.

The LoadPanel calculates its width relative to one of the elements in the following priority: container => position.of => window.

wrapperAttr

Specifies the global attributes for the UI component's wrapper element.

Type: any
Default Value: {}

jQuery
$(function(){
    $("#loadPanelContainer").dxLoadPanel({
        // ...
        wrapperAttr: {
            id: "elementId",
            class: "class-name"
        }
    });
});
Angular
app.component.html
app.component.ts
app.module.ts
<dx-load-panel ...
    [wrapperAttr]="{ id: 'elementId', class: 'class-name' }">
</dx-load-panel>
import { Component } from '@angular/core';
// ...
@Component({
    selector: 'app-root',
    templateUrl: './app.component.html',
    styleUrls: ['./app.component.css']
})
export class AppComponent {
    // ...
}
import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';

import { DxLoadPanelModule } from 'devextreme-angular';

@NgModule({
    declarations: [
        AppComponent
    ],
    imports: [
        BrowserModule,
        DxLoadPanelModule
    ],
    providers: [ ],
    bootstrap: [AppComponent]
})
export class AppModule { }
Vue
App.vue
<template>
    <DxLoadPanel ...
        :wrapper-attr="loadPanelAttributes">
    </DxLoadPanel>
</template>

<script>
import DxLoadPanel from 'devextreme-vue/load-panel';

export default {
    components: {
        DxLoadPanel
    },
    data() {
        return {
            loadPanelAttributes: {
                id: 'elementId',
                class: 'class-name'
            }
        }
    }
}
</script>
React
App.js
import React, { useMemo } from 'react';

import LoadPanel from 'devextreme-react/load-panel';

function App() {
    const loadPanelAttributes = useMemo(() => {
        return {
            id: 'elementId',
            class: 'class-name'
        }
    }, []);

    return (
        <LoadPanel ...
            wrapperAttr={loadPanelAttributes}>
        </LoadPanel>
    );
}
export default App;

The code above specifies the id and class attributes for the wrapper element and produces markup similar to this:

HTML
<body>
    <!-- The following is the wrapper element. -->
    <!-- It is nested inside an element defined by the `container` property (`<body>` by default). -->
    <div id="elementId" class="dx-overlay-wrapper dx-loadpanel-wrapper class-name" ... > 

        <!-- The following element contains component content. -->
        <div class="dx-overlay-content" ... >
            <!-- ... -->
        </div>
    </div>
</body>
jQuery

You can specify attributes to the component's root element directly in HTML code:

<div id="myLoadPanel" class="myClass"></div>
Angular

You can specify attributes to the component's root element directly in HTML code:

<dx-load-panel ... class="myClass">
</dx-load-panel>
React

You can specify attributes to the component's root element directly in HTML code:

<LoadPanel ... className="myClass" />
ASP.NET Core Controls

To add an attribute to an ASP.NET Core control, use its OnInitialized method:

@(Html.DevExtreme().LoadPanel()...
    .OnInitialized("(e) => e.element.addClass('myClass')")
)
ASP.NET MVC Controls

To add an attribute to an ASP.NET MVC control, use its OnInitialized method:

    @(Html.DevExtreme().LoadPanel()...
    .OnInitialized("(e) => e.element.addClass('myClass')")
)