Delete Rows with Ctrl+Delete

Use Fn+Delete on Mac keyboards. You can handle keyboard events in the FlexGrid 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.

import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './styles.css'; import * as wjGrid from '@grapecity/wijmo.grid'; import * as wjInput from '@grapecity/wijmo.input'; import * as wjCore from '@grapecity/wijmo'; import { getData } from './data'; // document.readyState === 'complete' ? init() : window.onload = init; // function init() { // // create the grid var theGrid = new wjGrid.FlexGrid('#theGrid', { itemsSource: getData(), allowAddNew: true }); // // use ctrl+Delete to delete the current row var theDialog = new wjInput.Popup('#theDialog'); theGrid.hostElement.addEventListener('keydown', function (e) { var view = theGrid.collectionView; // // looking for ctrl+Delete if (e.ctrlKey && e.keyCode == wjCore.Key.Delete && view.currentItem) { // // prevent the grid from getting the key e.preventDefault(); // // confirm row deletion theDialog.show(true, function (sender) { // // delete the row if (sender.dialogResult == 'wj-hide-ok') { view.remove(view.currentItem); } // // return focus to the grid theGrid.focus(); }); } }, true); }
<!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"> <!-- SystemJS --> <script src="node_modules/systemjs/dist/system.src.js"></script> <script src="systemjs.config.js"></script> <script> System.import('./src/app'); </script> </head> <body> <div class="container-fluid"> <p> Press Ctrl+Delete to remove the current row:</p> <div id="theGrid"></div> <div id="theDialog" style="display:none"> <div class="wj-dialog-header"> Deleting Row </div> <div class="wj-dialog-body" tabindex="-1"> Do you really want to delete this row? </div> <div class="wj-dialog-footer"> <button class="btn btn-primary wj-hide-ok">Yes</button> <button class="btn btn-default wj-hide">No</button> </div> </div> </div> </body> </html>
// grab the event before the grid // // generate some random data export function getData() { var countries = 'US,Canada,Mexico,Germany,UK,France,Italy,Greece,Holland,Japan,Korea,China'.split(','), data = []; for (var 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; }
.wj-flexgrid { height: 300px; margin: 10px 0; } body { margin-bottom: 24pt; }
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