JavaScript/jQuery RangeSlider - Handle the Value Change Event
To process new RangeSlider values, you need to handle the value change event. If the handling function is not going to be changed during the lifetime of the UI component, assign it to the onValueChanged property when you configure the UI component.
jQuery
$(function() { $("#rangeSliderContainer").dxRangeSlider({ onValueChanged: function (e) { const newStartValue = e.start; const newEndValue = e.end; // Event handling commands go here } }); });
Angular
<dx-range-slider [(start)]="startValue" [(end)]="endValue" (onValueChanged)="handleValueChange($event)"> </dx-range-slider>
import { DxRangeSliderModule } from "devextreme-angular"; // ... export class AppComponent { startValue = 20; endValue = 60; handleValueChange (e) { const newStartValue = e.start; const newEndValue = e.end; // Event handling commands go here }; } @NgModule({ imports: [ // ... DxRangeSliderModule ], // ... })
Vue
<template> <DxRangeSlider v-model:start="startValue" v-model:end="endValue" @value-changed="handleValueChange" /> </template> <script> import 'devextreme/dist/css/dx.light.css'; import { DxRangeSlider } from 'devextreme-vue/range-slider'; export default { components: { DxRangeSlider }, data() { return { startValue: 20, endValue: 60 }; }, methods: { handleValueChange(e) { const newStartValue = e.start; const newEndValue = e.end; // Event handling commands go here } } } </script>
React
import React from 'react'; import 'devextreme/dist/css/dx.light.css'; import { RangeSlider } from 'devextreme-react/range-slider'; class App extends React.Component { constructor(props) { super(props); this.state = { startValue: 20, endValue: 60 }; this.handleValueChange = this.handleValueChange.bind(this); } handleValueChange(e) { const newStartValue = e.start; const newEndValue = e.end; // Event handling commands go here this.setState({ startValue: newStartValue, endValue: newEndValue }); } render() { return ( <RangeSlider start={this.state.startValue} end={this.state.endValue} onValueChanged={this.handleValueChange} /> ); } } export default App;
If you are going to change event handlers at runtime, or if you need to attach several handlers to the value change event, subscribe to this event using the on(eventName, eventHandler) method. This approach is more typical of jQuery.
const valueChangedHandler1 = function (e) { const newStartValue = e.start; const newEndValue = e.end; // First handler of the "valueChanged" event }; const valueChangedHandler2 = function (e) { const newStartValue = e.start; const newEndValue = e.end; // Second handler of the "valueChanged" event }; $("#rangeSliderContainer").dxRangeSlider("instance") .on("valueChanged", valueChangedHandler1) .on("valueChanged", valueChangedHandler2);
See Also
- Handle Events: Angular | Vue | React | jQuery | AngularJS | Knockout
- RangeSlider Demos
- RangeSlider API Reference
If you have technical questions, please create a support ticket in the DevExpress Support Center.