Adding and Removing Rows

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

import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './styles.css'; import { FlexGrid } from '@grapecity/wijmo.grid'; document.readyState === 'complete' ? init() : window.onload = init; function init() { // generate some random data var countries = 'US,Germany,UK,Japan,Italy,Greece'.split(','), data = []; for (var 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 }); } // the grid var theGrid = new FlexGrid('#theGrid', { itemsSource: data, allowAddNew: true, allowDelete: true }); // toggle new row position document.getElementById('newRowAtTop').addEventListener('click', function (e) { theGrid.newRowAtTop = e.target.checked; }); }
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>GrapeCity Wijmo FlexGrid Adding and Removing Rows</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"> <label> newRowAtTop <input id="newRowAtTop" type="checkbox"> </label> <div id="theGrid"></div> </div> </body> </html>
.wj-flexgrid { height: 200px; margin: 10px 0; } body { margin-bottom: 20pt; }
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