Delete Rows with Ctrl+Delete (Angular)

Use Fn+Delete on Mac keyboards. You can handle keyboard events in the FlexGrid control by adding HTML event listeners to the grid's hostElement. For example, the grid below listens to the 'keydown' event. If you press Ctrl+Delete, it shows a prompt and deletes the current row.

Learn about FlexGrid | FlexGrid API Reference

This example uses Angular.

import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './styles.css'; import { Component, enableProdMode, NgModule, ViewChild } from '@angular/core'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { BrowserModule } from '@angular/platform-browser'; import { WjInputModule } from '@grapecity/wijmo.angular2.input'; import { WjGridModule } from '@grapecity/wijmo.angular2.grid'; import * as wjcCore from '@grapecity/wijmo'; import * as wjcGrid from '@grapecity/wijmo.grid'; import * as wjcInput from '@grapecity/wijmo.input'; @Component({ 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('popup', { static: true }) popup: wjcInput.Popup; initializeGrid(flex: wjcGrid.FlexGrid) { flex.hostElement.addEventListener('keydown', (e: KeyboardEvent) => { let view = <wjcCore.CollectionView>flex.collectionView; // looking for ctrl+Delete if (e.ctrlKey && e.keyCode == wjcCore.Key.Delete && view.currentItem) { // prevent the grid from getting the key e.preventDefault(); // confirm row deletion this.popup.show(true, (sender: wjcInput.Popup) => { // delete the row if (sender.dialogResult == 'wj-hide-ok') { view.remove(view.currentItem); } // return focus to the grid flex.focus(); }); } }, true); } private _getData() { // create some random data let countries = 'US,Canada,Mexico,Germany,UK,France,Italy,Greece,Holland,Japan,Korea,China'.split(','), data = []; for (let i = 0; i < 1000; i++) { data.push({ id: i, country: countries[i % countries.length], sales: Math.random() * 10000, expenses: Math.random() * 5000, active: i % 3 == 0 }); } return data; } } @NgModule({ imports: [WjGridModule, WjInputModule, BrowserModule], declarations: [AppComponent], bootstrap: [AppComponent] }) export class AppModule { } enableProdMode(); // Bootstrap application with hash style navigation and global services. platformBrowserDynamic().bootstrapModule(AppModule);
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>GrapeCity Wijmo FlexGrid Keyboard Events</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/dist/zone.min.js"></script> <!-- SystemJS --> <script src="node_modules/systemjs/dist/system.js"></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"> <!-- the grid --> <wj-flex-grid #flex [allowAddNew]="true" [(itemsSource)]="data" (initialized)="initializeGrid(flex)"> </wj-flex-grid> <wj-popup #popup class="modal-content"> <div class="modal-header"> Deleting Row </div> <div class="modal-body" tabindex="-1"> Do you really want to delete this row? </div> <div class="modal-footer"> <button class="btn btn-primary wj-hide-ok">Yes</button> <button class="btn btn-default wj-hide">No</button> </div> </wj-popup> </div>
.wj-flexgrid { height: 300px; margin: 10px 0; } body { margin-bottom: 24pt; }
(function (global) { System.config({ transpiler: 'ts', typescriptOptions: { tsconfig: true }, meta: { 'typescript': { "exports": "ts" }, '*.css': { loader: 'css' } }, paths: { // paths serve as alias 'npm:': 'node_modules/' }, // map tells the System loader where to look for things map: { 'core-js': 'npm:core-js/client/shim.min.js', 'zone': 'npm:zone.js/dist/zone.min.js', //'reflect-metadata': 'npm:reflect-metadata/Reflect.js', 'rxjs': 'npm:rxjs/bundles/rxjs.umd.min.js', //'rxjs': 'npm:rxjs', //'rxjs/operators': 'npm:rxjs/operators', '@angular/core': 'npm:@angular/core/bundles/core.umd.min.js', '@angular/common': 'npm:@angular/common/bundles/common.umd.min.js', '@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.min.js', '@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.min.js', '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.min.js', '@angular/http': 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extension packages: { src: { defaultExtension: 'ts' }, rxjs: { defaultExtension: 'js' }, // 'rxjs': {main: 'index.js', defaultExtension: 'js' }, // 'rxjs/ajax': {main: 'index.js', defaultExtension: 'js' }, //'rxjs/operators': {main: 'index.js', defaultExtension: 'js' }, // 'rxjs/testing': {main: 'index.js', defaultExtension: 'js' }, // 'rxjs/webSocket': {main: 'index.js', defaultExtension: 'js' }, "node_modules": { defaultExtension: 'js' }, wijmo: { defaultExtension: 'js', } } }); })(this);