使用Ctrl+Delete删除行

(Or Fn+Delete on Mac keyboards)

您可以通过向网格的 hostElement 添加HTML事件侦听器来处理FlexGrid中的键盘事件.

例如,下面的网格监听“keydown”事件。 如果按Ctrl + Delete,它会显示提示并删除当前行。 注意:

  1. 事件监听器被添加到 capture 参数设置为true,所以它在网格获取之前被调用
  2. 事件处理程序调用事件的 preventDefault 方法,因此网格不像通常那样处理Delete键.

按Ctrl + Delete删除当前行:

import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './styles.css'; // import * as grid from '@grapecity/wijmo.grid'; import * as input from '@grapecity/wijmo.input'; import * as wijmo from '@grapecity/wijmo'; // import { getData } from './data'; // document.readyState === 'complete' ? init() : window.onload = init; // function init() { // create the grid let theGrid = new grid.FlexGrid('#theGrid', { itemsSource: getData(), allowAddNew: true }); // // use ctrl+Delete to delete the current row let theDialog = new input.Popup('#theDialog'); // theGrid.hostElement.addEventListener('keydown', e => { let view = theGrid.collectionView; // // looking for ctrl+Delete if (e.ctrlKey && e.keyCode == wijmo.Key.Delete && view.currentItem) { // prevent the grid from getting the key e.preventDefault(); // // confirm row deletion theDialog.show(true, (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 Popup (Delete Rows with Ctrl+Delete)</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"> <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() { let countries = ['US', 'Canada', 'Mexico', 'Germany', 'UK', 'France', 'Italy', 'Greece', 'Holland', 'Japan', 'Korea', 'China'], 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; } .wj-flexgrid { height: 300px; margin: 10px 0; } body { margin-bottom: 24pt; } import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './styles.css'; // import * as wijmo from '@grapecity/wijmo'; import * as input from '@grapecity/wijmo.input'; import * as grid from '@grapecity/wijmo.grid'; // import { Component, enableProdMode, NgModule, ViewChild, Inject } 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 { DataService } from './app.data'; // @Component({ selector: 'app-component', templateUrl: 'src/app.component.html' }) export class AppComponent { @ViewChild('thePopup') thePopup: input.Popup; data: any; // constructor(@Inject(DataService) private dataService: DataService) { this.data = dataService.getData(); } // initGrid(grid: grid.FlexGrid) { grid.hostElement.addEventListener('keydown', e => { let view = grid.collectionView; // // looking for ctrl+Delete if (e.ctrlKey && e.keyCode == wijmo.Key.Delete && view.currentItem) { // prevent the grid from getting the key e.preventDefault(); // // confirm row deletion this.thePopup.show(true, (sender: input.Popup) => { // delete the row if (sender.dialogResult == 'wj-hide-ok') { (<wijmo.CollectionView>view).remove(view.currentItem); } // // return focus to the grid grid.focus(); }); } }, true); } } // @NgModule({ imports: [WjInputModule, WjGridModule, BrowserModule], declarations: [AppComponent], providers: [DataService], 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 Popup (Delete Rows with Ctrl+Delete)</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"> <wj-flex-grid #theGrid [itemsSource]="data" [allowAddNew]="true" (initialized)="initGrid(theGrid)"></wj-flex-grid> <wj-popup #thePopup> <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> </wj-popup> </div> import { Injectable } from '@angular/core'; // @Injectable() export class DataService { getData() { let countries = ['US', 'Canada', 'Mexico', 'Germany', 'UK', 'France', 'Italy', 'Greece', 'Holland', 'Japan', 'Korea', 'China'], 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; } } .wj-flexgrid { height: 300px; margin: 10px 0; } body { margin-bottom: 24pt; } <template> <div class="container-fluid"> <wj-flex-grid :itemsSource="data" :allowAddNew="true" :initialized="initGrid"></wj-flex-grid> <wj-popup :initialized="initPopup"> <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> </wj-popup> </div> </template> <script> import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import Vue from 'vue'; import '@grapecity/wijmo.vue2.core'; import '@grapecity/wijmo.vue2.input'; import '@grapecity/wijmo.vue2.grid'; import { getData } from './data'; let App = Vue.extend({ name: 'app', data: function(){ return { thePopup: {}, data: getData() } }, methods: { initPopup: function(popup){ this.thePopup = popup; }, initGrid: function(grid) { grid.hostElement.addEventListener('keydown', e => { let view = grid.collectionView; // looking for ctrl+Delete if (e.ctrlKey && e.keyCode == wijmo.Key.Delete && view.currentItem) { // prevent the grid from getting the key e.preventDefault(); // confirm row deletion this.thePopup.show(true, (sender) => { // delete the row if (sender.dialogResult == 'wj-hide-ok') { view.remove(view.currentItem); } // return focus to the grid grid.focus(); }); } }, true); } } }) let vm = new Vue({ render: h => h(App) }).$mount('#app'); </script> <style> .container-fluid .wj-flexgrid { height: 300px; margin: 10px 0; } body { margin-bottom: 24pt; } </style> <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>GrapeCity Popup (Delete Rows with Ctrl+Delete)</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.vue'); </script> </head> <body> <div id="app"></div> </body> </html> // grab the event before the grid // // generate some random data export function getData() { let countries = ['US', 'Canada', 'Mexico', 'Germany', 'UK', 'France', 'Italy', 'Greece', 'Holland', 'Japan', 'Korea', 'China'], 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; } import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './app.css'; // import * as React from 'react'; import * as ReactDOM from 'react-dom'; // import * as wjGrid from '@grapecity/wijmo.react.grid'; import * as wijmo from '@grapecity/wijmo'; import * as wjInput from '@grapecity/wijmo.react.input'; import { getData } from './data'; // class App extends React.Component { constructor(props) { super(props); this.initPopup = (popup) => { this.setState({ thePopup: popup }); }; this.initGrid = (grid) => { grid.hostElement.addEventListener('keydown', e => { let view = grid.collectionView; // looking for ctrl+Delete if (e.ctrlKey && e.keyCode == wijmo.Key.Delete && view.currentItem) { // prevent the grid from getting the key e.preventDefault(); // confirm row deletion this.state.thePopup.show(true, (sender) => { // delete the row if (sender.dialogResult == 'wj-hide-ok') { view.remove(view.currentItem); } // return focus to the grid grid.focus(); }); } }, true); }; this.state = { data: getData(), thePopup: {}, }; } ; render() { return <div className="container-fluid"> <wjGrid.FlexGrid allowAddNew={true} itemsSource={this.state.data} initialized={this.initGrid}> </wjGrid.FlexGrid> <wjInput.Popup initialized={this.initPopup}> <div className="wj-dialog-header"> Deleting Row </div> <div className="wj-dialog-body"> Do you really want to delete this row? </div> <div className="wj-dialog-footer"> <button className="btn btn-primary wj-hide-ok">Yes</button> <button className="btn btn-default wj-hide">No</button> </div> </wjInput.Popup> </div>; } } ReactDOM.render(<App />, document.getElementById('app')); <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>AutoComplete</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 id="app"></div> </body> </html> .wj-flexgrid { height: 300px; margin: 10px 0; } body { margin-bottom: 24pt; } export function getData() { let countries = ['US', 'Canada', 'Mexico', 'Germany', 'UK', 'France', 'Italy', 'Greece', 'Holland', 'Japan', 'Korea', 'China'], 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; }