Selection (Angular)

By default, the FlexGrid control allows you to select a range of cells with the mouse or keyboard, just like Excel. The selectionMode property allows you to change that so that users are restricted to selecting rows, row ranges, non-contiguous rows (like in a list-box), single cells, or nothing at all.

Learn about FlexGrid | Selection Modes 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, Inject, ViewChild, ɵresolveComponentResources } from '@angular/core'; import { FormsModule } from '@angular/forms'; import { BrowserModule, bootstrapApplication } from '@angular/platform-browser'; import { WjGridModule } from '@mescius/wijmo.angular2.grid'; import { WjInputModule } from '@mescius/wijmo.angular2.input'; import * as wjCore from '@mescius/wijmo'; import * as wjInput from '@mescius/wijmo.input'; import * as wjGrid from '@mescius/wijmo.grid'; import { DataService, DataItem } from './app.data'; @Component({ standalone: true, providers: [DataService], imports: [WjGridModule, FormsModule, WjInputModule, BrowserModule], selector: 'app-component', templateUrl: 'src/app.component.html' }) export class AppComponent { @ViewChild('flexGrid', { static: true }) flexGrid: wjGrid.FlexGrid; @ViewChild('selectionMode', { static: true }) selectionMode: wjInput.ComboBox; data: DataItem[]; comboBoxData: string[]; currentSelection: string; // DataSvc will be passed by derived classes constructor(@Inject(DataService) dataSvc: DataService) { this.data = dataSvc.getData(); this.comboBoxData = 'None,Cell,CellRange,Row,RowRange,ListBox'.split(','); } // initializeGrid() { this.flexGrid.onSelectionChanged(null); } // onTextChanged() { this.flexGrid.selectionMode = wjCore.asEnum(this.selectionMode.selectedIndex, wjGrid.SelectionMode); } // onSelectionChanged() { this.currentSelection = wjCore.format( '({row},{col})-({row2},{col2})', this.flexGrid.selection); } // onRefreshClick() { this.flexGrid.collectionView.refresh(); } // onSelectClick() { this.selectionMode.text = 'CellRange'; this.flexGrid.selection = new wjGrid.CellRange(0, 0, 1, 1); } // onListSelectClick() { this.selectionMode.text = 'ListBox'; this.flexGrid.select(0, 0); setTimeout(() => { [0, 2, 4].forEach((index) => { this.flexGrid.rows[index].isSelected = true; }); }); } } 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 FlexGrid Selection Overview</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> selectionMode <span id="selectionMode"></span> <wj-combo-box #selectionMode [itemsSource]="comboBoxData" [text]="'CellRange'" (textChanged)="onTextChanged()"></wj-combo-box> </label> <wj-flex-grid #flexGrid [alternatingRowStep]="0" [itemsSource]="data" (initialized)="initializeGrid(flex)" (selectionChanged)="onSelectionChanged()"> </wj-flex-grid> <p> Current selection: <span id="currSel">{{currentSelection}}</span>. </p> <div> <button class="btn btn-default" (click)="onSelectClick()"> Select the first four cells </button> <button class="btn btn-default" (click)="onListSelectClick()"> Select rows 0, 2, and 4 </button> </div> </div>
import { Injectable } from '@angular/core'; export interface DataItem { country: string; downloads: number; sales: number; expenses: number; } @Injectable() export class DataService { getData(): DataItem[] { var countries = 'US,Germany,UK,Japan,Italy,Greece'.split(','), data = []; for (var i = 0; i < countries.length; i++) { data.push({ country: countries[i], downloads: Math.round(Math.random() * 20000), sales: Math.random() * 10000, expenses: Math.random() * 5000 }); } return data; } }
.wj-flexgrid { max-height: 250px; margin:6px 0; } #currSel { font-weight: bold } body { margin-bottom: 12px; }
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packages: { "./src": { defaultExtension: 'ts' }, "node_modules": { defaultExtension: 'js' }, wijmo: { defaultExtension: 'js', } } }); })(this);