Adding and Removing Rows (Angular)

In most cases, you won't have to write code to add or remove rows from the FlexGrid control. FlexGrid has three properties, allowAddNew, allowDelete and newRowAtTop that affect adding and removing rows from the grid.

allowAddNew: Setting this property to true causes the grid to show a new row 'template' at the bottom of the grid.

allowDelete: Setting this property to true causes the grid to remove selected rows when the user presses the 'Delete' key.

newRowAtTop: Setting this property to true causes the grid to show the new row template at the top of the grid rather than the bottom.

You can see all of these properties in action in the sample below.

Learn about FlexGrid | Adding and Removing Rows Documentation | FlexGrid API Reference

This example uses Angular.

import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import './styles.css'; // import '@angular/compiler'; import { Component, enableProdMode, ViewChild, ɵresolveComponentResources } from '@angular/core'; import { BrowserModule, bootstrapApplication } from '@angular/platform-browser'; import { FormsModule } from '@angular/forms'; import * as wjcGrid from '@mescius/wijmo.grid'; import { WjGridModule } from '@mescius/wijmo.angular2.grid'; // @Component({ standalone: true, imports: [WjGridModule, BrowserModule, FormsModule], selector: 'app-component', templateUrl: 'src/app.component.html' }) export class AppComponent { data: any[]; // DataSvc will be passed by derived classes constructor() { this.data = this._getData(); } @ViewChild('flex', { static: true }) grid: wjcGrid.FlexGrid; private _getData() { // generate some random data let countries = 'US,Germany,UK,Japan,Italy,Greece'.split(','), data = []; for (let i = 0; i < countries.length; i++) { data.push({ id: i, country: countries[i], downloads: Math.round(Math.random() * 20000), sales: Math.random() * 10000, expenses: Math.random() * 5000 }); } return data; } } // // enableProdMode(); // Resolve resources (templateUrl, styleUrls etc), After resolution all URLs have been converted into `template` strings. ɵresolveComponentResources(fetch).then(() => { // Bootstrap application bootstrapApplication(AppComponent).catch(err => console.error(err)); });
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>MESCIUS Wijmo Adding and Removing Rows</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- Polyfills --> <script src="node_modules/core-js/client/shim.min.js"></script> <script src="node_modules/zone.js/fesm2015/zone.min.js"></script> <!-- SystemJS --> <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.21.5/system.src.js" integrity="sha512-skZbMyvYdNoZfLmiGn5ii6KmklM82rYX2uWctBhzaXPxJgiv4XBwJnFGr5k8s+6tE1pcR1nuTKghozJHyzMcoA==" crossorigin="anonymous"></script> <script src="systemjs.config.js"></script> <script> // workaround to load 'rxjs/operators' from the rxjs bundle System.import('rxjs').then(function (m) { System.set(SystemJS.resolveSync('rxjs/operators'), System.newModule(m.operators)); System.import('./src/app.component'); }); </script> </head> <body> <app-component></app-component> </body> </html>
<div class="container-fluid"> <label> newRowAtTop <input [(ngModel)]="grid.newRowAtTop" type="checkbox"> </label> <wj-flex-grid #flex [allowAddNew]="true" [allowDelete]="true" [(itemsSource)]="data"> </wj-flex-grid> </div>
.wj-flexgrid { height: 200px; margin: 10px 0; } body { margin-bottom: 20pt; }
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packages: { "./src": { defaultExtension: 'ts' }, "node_modules": { defaultExtension: 'js' }, wijmo: { defaultExtension: 'js', } } }); })(this);