Angular LoadIndicator Properties

This section describes the configuration properties of the LoadIndicator UI component.

See Also
jQuery
Angular
Vue
React

elementAttr

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

Selector: dxo-element-attr
Type:

Object

Default Value: {}

jQuery
$(function(){
    $("#loadIndicatorContainer").dxLoadIndicator({
        // ...
        elementAttr: {
            id: "elementId",
            class: "class-name"
        }
    });
});
Angular
HTML
TypeScript
<dx-load-indicator ...
    [elementAttr]="{ id: 'elementId', class: 'class-name' }">
</dx-load-indicator>
import { DxLoadIndicatorModule } from "devextreme-angular";
// ...
export class AppComponent {
    // ...
}
@NgModule({
    imports: [
        // ...
        DxLoadIndicatorModule
    ],
    // ...
})
Vue
App.vue
<template>
    <DxLoadIndicator ...
        :element-attr="loadIndicatorAttributes">
    </DxLoadIndicator>
</template>

<script>
import DxLoadIndicator from 'devextreme-vue/load-indicator';

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

import LoadIndicator from 'devextreme-react/load-indicator';

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

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

height

Specifies the UI component's height.

Type:

Number

|

String

|

Function

| undefined
Return Value:

Number

|

String

The UI component's height.

Default Value: undefined

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.

hint

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

Type:

String

| undefined
Default Value: undefined

indicatorSrc

Specifies the path to an image used as the indicator.

Type:

String

Default Value: ''

onContentReady

A function that is executed when the UI component is rendered and each time the component is repainted.

Type:

Function

Function parameters:
e:

ContentReadyEvent

Information about the event.

Object structure:
Name Type Description
element

HTMLElement | jQuery

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

LoadIndicator

The UI component's instance.
Default Value: null

onDisposing

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

Type:

Function

Function parameters:
e:

DisposingEvent

Information about the event.

Object structure:
Name Type Description
element

HTMLElement | jQuery

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

LoadIndicator

The UI component's instance.
Default Value: null

onInitialized

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

Type:

Function

Function parameters:
e:

InitializedEvent

Information about the event.

Object structure:
Name Type Description
element

HTMLElement | jQuery

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

LoadIndicator

The UI component's instance.
Default Value: null

Angular
app.component.html
app.component.ts
<dx-load-indicator ...
    (onInitialized)="saveInstance($event)">
</dx-load-indicator>
import { Component } from "@angular/core";
import LoadIndicator from "devextreme/ui/data_grid";
// ...
export class AppComponent {
    loadIndicatorInstance: LoadIndicator;
    saveInstance (e) {
        this.loadIndicatorInstance = e.component;
    }
}
Vue
App.vue (Options API)
App.vue (Composition API)
<template>
    <div>
        <DxLoadIndicator ...
            @initialized="saveInstance">
        </DxLoadIndicator>
    </div>
</template>

<script>
import DxLoadIndicator from 'devextreme-vue/load-indicator';

export default {
    components: {
        DxLoadIndicator
    },
    data: function() {
        return {
            loadIndicatorInstance: null
        };
    },
    methods: {
        saveInstance: function(e) {
            this.loadIndicatorInstance = e.component;
        }
    }
};
</script>
<template>
    <div>
        <DxLoadIndicator ...
            @initialized="saveInstance">
        </DxLoadIndicator>
    </div>
</template>

<script setup>
import DxLoadIndicator from 'devextreme-vue/load-indicator';

let loadIndicatorInstance = null;

const saveInstance = (e) => {
    loadIndicatorInstance = e.component;
}
</script>
React
App.js
import LoadIndicator from 'devextreme-react/load-indicator';

class App extends React.Component {
    constructor(props) {
        super(props);

        this.saveInstance = this.saveInstance.bind(this);
    }

    saveInstance(e) {
        this.loadIndicatorInstance = e.component;
    }

    render() {
        return (
            <div>
                <LoadIndicator onInitialized={this.saveInstance} />
            </div>
        );
    }
}
See Also
jQuery
  • Get a UI component Instance in jQuery
Angular
  • Get a UI component Instance in Angular
Vue
  • Get a UI component Instance in Vue
React
  • Get a UI component Instance in React

onOptionChanged

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

Type:

Function

Function parameters:
e:

OptionChangedEvent

Information about the event.

Object structure:
Name Type Description
value any

The modified property's new value.
previousValue any

The UI component's previous value.
name

String

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

LoadIndicator

The UI component's instance.
Default Value: null

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

jQuery
index.js
$(function() {
    $("#loadIndicatorContainer").dxLoadIndicator({
        // ...
        onOptionChanged: function(e) {
            if(e.name === "changedProperty") {
                // handle the property change here
            }
        }
    });
});
Angular
app.component.html
app.component.ts
app.module.ts
<dx-load-indicator ...
    (onOptionChanged)="handlePropertyChange($event)"> 
</dx-load-indicator>
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 { DxLoadIndicatorModule } from 'devextreme-angular'; 

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

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

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

export default { 
    components: { 
        DxLoadIndicator
    }, 
    // ...
    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 LoadIndicator from 'devextreme-react/load-indicator'; 

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

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

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

visible

Specifies whether the UI component is visible.

Type:

Boolean

Default Value: true

width

Specifies the UI component's width.

Type:

Number

|

String

|

Function

| undefined
Return Value:

Number

|

String

The UI component's width.

Default Value: undefined

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.