JavaScript/jQuery ResponsiveBox Methods
beginUpdate()
Postpones rendering that can negatively affect performance until the endUpdate() method is called.
The beginUpdate() and endUpdate() methods reduce the number of renders in cases where extra rendering can negatively affect performance.
See Also
defaultOptions(rule)
Name | Type | Description |
---|---|---|
device | | |
Device parameters. |
options |
Options to be applied. |
defaultOptions is a static method that the UI component class supports. The following code demonstrates how to specify default properties for all instances of the ResponsiveBox UI component in an application executed on the desktop.
jQuery
DevExpress.ui.dxResponsiveBox.defaultOptions({ device: { deviceType: "desktop" }, options: { // Here go the ResponsiveBox properties } });
Angular
import ResponsiveBox, { Properties } from "devextreme/ui/responsive_box"; // ... export class AppComponent { constructor () { ResponsiveBox.defaultOptions<Properties>({ device: { deviceType: "desktop" }, options: { // Here go the ResponsiveBox properties } }); } }
Vue
<template> <div> <DxResponsiveBox id="responsiveBox1" /> <DxResponsiveBox id="responsiveBox2" /> </div> </template> <script> import DxResponsiveBox from "devextreme-vue/responsive-box"; import ResponsiveBox from "devextreme/ui/responsive_box"; ResponsiveBox.defaultOptions({ device: { deviceType: "desktop" }, options: { // Here go the ResponsiveBox properties } }); export default { components: { DxResponsiveBox } } </script>
React
import dxResponsiveBox from "devextreme/ui/responsive_box"; import ResponsiveBox from "devextreme-react/responsive-box"; dxResponsiveBox.defaultOptions({ device: { deviceType: "desktop" }, options: { // Here go the ResponsiveBox properties } }); export default function App() { return ( <div> <ResponsiveBox id="responsiveBox1" /> <ResponsiveBox id="responsiveBox2" /> </div> ) }
You can also set rules for multiple device types:
jQuery
const devicesConfig = [ { deviceType: 'desktop' }, { deviceType: 'tablet' }, { deviceType: 'phone' }, ]; devicesConfig.forEach(deviceConfig => { DevExpress.ui.dxResponsiveBox.defaultOptions({ device: deviceConfig, options: { // Here go the ResponsiveBox properties } }); });
Angular
import ResponsiveBox, { Properties } from "devextreme/ui/responsive_box"; // ... export class AppComponent { constructor () { const devicesConfig = [ { deviceType: 'desktop' }, { deviceType: 'tablet' }, { deviceType: 'phone' }, ]; devicesConfig.forEach(deviceConfig => { ResponsiveBox.defaultOptions<Properties>({ device: deviceConfig, options: { // Here go the ResponsiveBox properties } }); }); } }
Vue
<template> <div> <DxResponsiveBox /> </div> </template> <script> import DxResponsiveBox from "devextreme-vue/responsive-box"; import ResponsiveBox from "devextreme/ui/responsive_box"; const devicesConfig = [ { deviceType: 'desktop' }, { deviceType: 'tablet' }, { deviceType: 'phone' }, ]; devicesConfig.forEach(deviceConfig => { ResponsiveBox.defaultOptions({ device: deviceConfig, options: { // Here go the ResponsiveBox properties } }); }); export default { components: { DxResponsiveBox } } </script>
React
import dxResponsiveBox from "devextreme/ui/responsive_box"; import ResponsiveBox from "devextreme-react/responsive-box"; const devicesConfig = [ { deviceType: 'desktop' }, { deviceType: 'tablet' }, { deviceType: 'phone' }, ]; devicesConfig.forEach(deviceConfig => { dxResponsiveBox.defaultOptions({ device: deviceConfig, options: { // Here go the ResponsiveBox properties } }); }); export default function App() { return ( <div> <ResponsiveBox /> </div> ) }
dispose()
jQuery
After calling this method, remove the DOM element associated with the UI component:
$("#myResponsiveBox").dxResponsiveBox("dispose"); $("#myResponsiveBox").remove();
Angular
Use conditional rendering instead of this method:
<dx-responsive-box ... *ngIf="condition"> </dx-responsive-box>
Vue
Use conditional rendering instead of this method:
<template> <DxResponsiveBox ... v-if="condition"> </DxResponsiveBox> </template> <script> import DxResponsiveBox from 'devextreme-vue/responsive-box'; export default { components: { DxResponsiveBox } } </script>
React
Use conditional rendering instead of this method:
import React from 'react'; import ResponsiveBox from 'devextreme-react/responsive-box'; function DxResponsiveBox(props) { if (!props.shouldRender) { return null; } return ( <ResponsiveBox ... > </ResponsiveBox> ); } class App extends React.Component { render() { return ( <DxResponsiveBox shouldRender="condition" /> ); } } export default App;
endUpdate()
Refreshes the UI component after a call of the beginUpdate() method.
The beginUpdate() and endUpdate() methods reduce the number of renders in cases where extra rendering can negatively affect performance.
See Also
getDataSource()
Gets the DataSource instance.
See Also
getInstance(element)
getInstance is a static method that the UI component class supports. The following code demonstrates how to get the ResponsiveBox instance found in an element with the myResponsiveBox
ID:
// Modular approach import ResponsiveBox from "devextreme/ui/responsive_box"; ... let element = document.getElementById("myResponsiveBox"); let instance = ResponsiveBox.getInstance(element) as ResponsiveBox; // Non-modular approach let element = document.getElementById("myResponsiveBox"); let instance = DevExpress.ui.dxResponsiveBox.getInstance(element);
See Also
on(eventName, eventHandler)
Use this method to subscribe to one of the events listed in the Events section.
See Also
on(events)
Use this method to subscribe to several events with one method call. Available events are listed in the Events section.
See Also
repaint()
Renders the component again without reloading data. Use the method to update the component's markup and appearance dynamically.
The repaint()
method re-initializes the component with new settings, resetting its state and history.
See Also
- reload() in DataSource | List
- refresh() in DataGrid | TreeList