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Data Grid

Infinite Scrolling

Documentation
The DataGrid widget provides a capability to navigate from a page to a page gradually without using a pager. For this purpose, an infinite scroll mode has been introduced. Data pages in this mode are loaded when the scroll bar reaches the end of its scale. This demo illustrates how you can enable the infinite scroll mode.
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<dx-data-grid id="gridContainer" [dataSource]="dataSource" [customizeColumns]="customizeColumns"> <dxo-load-panel [enabled]="false"></dxo-load-panel> <dxo-scrolling mode="infinite"></dxo-scrolling> <dxo-sorting mode="none"></dxo-sorting> </dx-data-grid>
import { NgModule, Component } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { DxDataGridModule } from 'devextreme-angular'; import { Service, Employee } from './app.service'; @Component({ selector: 'demo-app', templateUrl: 'app/app.component.html', styleUrls: ['app/app.component.css'], providers: [Service] }) export class AppComponent { dataSource: Employee[]; constructor(service: Service) { this.dataSource = service.generateData(100000); } customizeColumns(columns) { columns[0].width = 70; } } @NgModule({ imports: [ BrowserModule, DxDataGridModule ], declarations: [AppComponent], bootstrap: [AppComponent] }) export class AppModule { } platformBrowserDynamic().bootstrapModule(AppModule);
/deep/ #gridContainer { height: 440px; }
import { Injectable } from '@angular/core'; export class Employee { id: number; firstName: string; lastName: string; gender: string; birthDate: Date; } let employees: Employee[] = []; let surnames: string[] = [ "Smith", "Johnson", "Brown", "Taylor", "Anderson", "Harris", "Clark", "Allen", "Scott", "Carter"]; let names: string[] = [ "James", "John", "Robert", "Christopher", "George", "Mary", "Nancy", "Sandra", "Michelle", "Betty"]; let gender: string[] = ["Male", "Female"]; let s: number = 123456789; @Injectable() export class Service { random() { s = (1103515245 * s + 12345) % 2147483647; return s % (10 - 1); } generateData(count: number) { let i: number, startBirthDate = Date.parse("1/1/1975"), endBirthDate = Date.parse("1/1/1992"); for (i = 0; i < count; i++) { let birthDate = new Date(startBirthDate + Math.floor( this.random() * (endBirthDate - startBirthDate) / 10)); birthDate.setHours(12); let nameIndex = this.random(); let item = { id: i + 1, firstName: names[nameIndex], lastName: surnames[this.random()], gender: gender[Math.floor(nameIndex / 5)], birthDate: birthDate }; employees.push(item); } return employees; } }
// 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', 'devextreme': 'npm:devextreme@17.1', 'jquery': 'npm:jquery@3.1.1/dist/jquery.min.js', 'jszip': 'npm:jszip@3.1.3/dist/jszip.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>