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Range Selector

Use Range Selection for Calculation

Documentation
The RangeSelector widget allows you to handle changes of the currently selected range. For this purpose, the callback function is specified in the onValueChanged option. Select the function’s call mode using the "Handle Range Changes" drop-down menu.
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<div id="range-selector-demo"> <dx-range-selector id="range-selector" title="Calculate the Working Days Count in a Date Period" (onValueChanged)="onValueChanged($event)"> <dxo-margin [top]="50"></dxo-margin> <dxo-size [height]="200"></dxo-size> <dxo-scale [startValue]="startValue" [endValue]="endValue" minorTickInterval="day" tickInterval="month"> <dxo-minor-tick [visible]="false"></dxo-minor-tick> <dxo-marker [visible]="false"></dxo-marker> <dxo-label [customizeText]="customizeLabel"></dxo-label> </dxo-scale> <dxo-slider-marker [customizeText]="customizeSliderMarker"> </dxo-slider-marker> <dxo-behavior #beh callValueChanged="onMoving"> </dxo-behavior> </dx-range-selector> <h2>Working days count: {{workingDaysCount}}</h2> <div class="options"> <div class="caption">Options</div> <div class="option"> <span>Handle Range Changes</span> <dx-select-box id="handle" [dataSource]="dataSource" [width]="210" [(value)]="beh.callValueChanged" ></dx-select-box> </div> </div> </div>
import { NgModule, Component } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { DatePipe } from '@angular/common'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { DxRangeSelectorModule, DxSelectBoxModule } from 'devextreme-angular'; @Component({ selector: 'demo-app', templateUrl: 'app/app.component.html', styleUrls: ['app/app.component.css'] }) export class AppComponent { pipe: any = new DatePipe(); dataSource: string[] = ["onMoving", "onMovingComplete"]; workingDaysCount = 260; startValue: Date = new Date(2011, 0, 1); endValue: Date = new Date(2011, 11, 31); onValueChanged = (e) => { let currentDate = new Date(e.value[0]), workingDaysCount = 0; while (currentDate <= e.value[1]) { if (currentDate.getDay() > 0 && currentDate.getDay() < 6) { workingDaysCount++; } currentDate.setDate(currentDate.getDate() + 1); } this.workingDaysCount = workingDaysCount.toFixed(); } customizeSliderMarker = (data) => { return this.pipe.transform(data.value, "dd EEEE"); } customizeLabel = (data) => { return this.pipe.transform(data.value, "MMM"); } } @NgModule({ imports: [ BrowserModule, DxRangeSelectorModule, DxSelectBoxModule ], declarations: [AppComponent], bootstrap: [AppComponent] }) export class AppModule { } platformBrowserDynamic().bootstrapModule(AppModule);
/deep/ h2 { text-align: center; } /deep/ .options { padding: 20px; background-color: #f5f5f5; position: absolute; bottom: 0; left: 0; right: 0; } /deep/ .option { margin-top: 10px; } /deep/ .caption { font-size: 18px; font-weight: 500; } /deep/ .option > span { margin-right: 10px; } /deep/ .option > .dx-widget { display: inline-block; vertical-align: middle; }
// In real applications, you should not transpile code in the browser. You can see how to create your own application with Angular 2 and DevExtreme here: // https://github.com/DevExpress/devextreme-angular/blob/master/README.md System.config({ transpiler: 'ts', typescriptOptions: { module: "commonjs", emitDecoratorMetadata: true, experimentalDecorators: true }, meta: { 'typescript': { "exports": "ts" } }, paths: { 'npm:': 'https://unpkg.com/' }, map: { 'ts': 'npm:plugin-typescript@7.0.6/lib/plugin.js', 'typescript': 'npm:typescript@2.2.2/lib/typescript.js', '@angular/core': 'npm:@angular/core@4.1.0/bundles/core.umd.js', '@angular/common': 'npm:@angular/common@4.1.0/bundles/common.umd.js', '@angular/compiler': 'npm:@angular/compiler@4.1.0/bundles/compiler.umd.js', '@angular/platform-browser': 'npm:@angular/platform-browser@4.1.0/bundles/platform-browser.umd.js', '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic@4.1.0/bundles/platform-browser-dynamic.umd.js', '@angular/http': 'npm:@angular/http@4.1.0/bundles/http.umd.js', '@angular/router': 'npm:@angular/router@4.1.0/bundles/router.umd.js', '@angular/forms': 'npm:@angular/forms@4.1.0/bundles/forms.umd.js', 'rxjs': 'npm:rxjs@5.3.1', 'jszip': 'npm:jszip@3.1.3/dist/jszip.min.js', 'devextreme': 'npm:devextreme@17.1', 'jquery': 'npm:jquery@3.1.1/dist/jquery.min.js', 'devextreme-angular': 'npm:devextreme-angular@17.1' }, packages: { 'app': { main: './app.component.ts', defaultExtension: 'ts' }, 'devextreme': { defaultExtension: 'js' }, 'devextreme-angular': { main: 'index.js', defaultExtension: 'js' } } });
<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>DevExtreme Demo</title> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/17.1.3/css/dx.spa.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/17.1.3/css/dx.common.css" /> <link rel="dx-theme" data-theme="generic.light" href="https://cdn3.devexpress.com/jslib/17.1.3/css/dx.light.css" /> <script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script> <script src="https://unpkg.com/zone.js@0.6.25/dist/zone.js"></script> <script src="https://unpkg.com/reflect-metadata@0.1.3/Reflect.js"></script> <script src="https://unpkg.com/systemjs@0.19.31/dist/system.js"></script> <script src="config.js"></script> <script> System.import('app').catch(console.error.bind(console)); </script> </head> <body class="dx-viewport"> <div class="demo-container"> <demo-app>Loading...</demo-app> </div> </body> </html>