稳定排序

CollectionView类具有“stableSort”属性,允许您在按数据对象中的任何字段排序时保留原始项目序列。

例如,此示例基于按国家/地区和ID排序的项目列表创建CollectionView。 如果您按任何属性(例如Active)对网格进行排序,则具有相同的项目 sort属性值将根据原始顺序排序(按国家/地区和ID排序):

import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './styles.css'; // import * as wijmo from '@grapecity/wijmo'; import * as grid from '@grapecity/wijmo.grid'; import { getData } from './data'; // document.readyState === 'complete' ? init() : window.onload = init; // function init() { // default grid let theGrid = new grid.FlexGrid('#theGrid', { itemsSource: getView() }); // // create some random data function getView() { let data = getData(); // // sort data by country data.sort((a, b) => { return a.country < b.country ? -1 : a.country > b.country ? +1 : a.id - b.id; }); // // create a CollectionView with a stable sort return new wijmo.CollectionView(data, { useStableSort: true }); } } <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>GrapeCity CollectionView Stable Sort</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="theGrid2"> </div> </div> </body> </html> // export function getData() { let countries = ['US', 'Germany', 'UK', 'Japan', 'Italy', 'Greece'], colors = ['Red', 'Green', 'Blue', 'White'], data = []; // for (let i = 0; i < 200; i++) { data.push({ id: i, country: countries[i % countries.length], color: colors[i % colors.length], active: i % 5 != 0, downloads: Math.round(Math.random() * 200000), sales: Math.random() * 100000, expenses: Math.random() * 50000 }); } // return data; } .wj-flexgrid { max-height: 250px; margin-bottom: 12px; } .header { display: inline-block; width: 150px; text-align: right; font-weight: normal; } import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './styles.css'; // import * as wijmo from '@grapecity/wijmo'; // import { Component, Inject, enableProdMode, NgModule } from '@angular/core'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { BrowserModule } from '@angular/platform-browser'; import { WjGridModule } from '@grapecity/wijmo.angular2.grid'; import { DataService } from './app.data'; // @Component({ selector: 'app-component', templateUrl: 'src/app.component.html' }) export class AppComponent { view: wijmo.CollectionView; // constructor(@Inject(DataService) private dataService: DataService) { let data = dataService.getData().sort((a, b) => { return a.country < b.country ? -1 : a.country > b.country ? +1 : a.id - b.id; }); // this.view = new wijmo.CollectionView(data, { useStableSort: true }); } } // @NgModule({ imports: [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 CollectionView Stable Sort</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 [itemsSource]="view"></wj-flex-grid> </div> import { Injectable } from '@angular/core'; // export type TDataItem = { id: number; country: string; color: string; active: boolean; downloads: number; sales: number; expenses: number; } // @Injectable() export class DataService { getData() { let countries = ['US', 'Germany', 'UK', 'Japan', 'Italy', 'Greece'], colors = ['Red', 'Green', 'Blue', 'White'], data: TDataItem[] = []; // for (let i = 0; i < 200; i++) { data.push({ id: i, country: countries[i % countries.length], color: colors[i % colors.length], active: i % 5 != 0, downloads: Math.round(Math.random() * 200000), sales: Math.random() * 100000, expenses: Math.random() * 50000 }); } // return data; } } .wj-flexgrid { max-height: 250px; margin-bottom: 12px; } .header { display: inline-block; width: 150px; text-align: right; font-weight: normal; } <template> <div class="container-fluid"> <wj-flex-grid :items-source="view"></wj-flex-grid> </div> </template> <script> import "bootstrap.css"; import "@grapecity/wijmo.styles/wijmo.css"; import Vue from "vue"; import * as wijmo from "@grapecity/wijmo"; import { getData } from "./data"; import { WjGridModule } from "@grapecity/wijmo.vue2.grid"; new Vue({ el: "#app", computed: { view: function() { let data = getData().sort((a, b) => { return a.country < b.country ? -1 : a.country > b.country ? +1 : a.id - b.id; }); return new wijmo.CollectionView(data, { useStableSort: true }); } } }); </script> <style> .container-fluid .wj-flexgrid { max-height: 250px; margin-bottom: 12px; } .header { display: inline-block; width: 150px; text-align: right; font-weight: normal; } </style> <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>GrapeCity CollectionView Stable Sort</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> export function getData(callback, delay) { let countries = ['US', 'Germany', 'UK', 'Japan', 'Italy', 'Greece'], colors = ['Red', 'Green', 'Blue', 'White'], data= []; // for (let i = 0; i < 200; i++) { data.push({ id: i, country: countries[i % countries.length], color: colors[i % colors.length], active: i % 5 != 0, downloads: Math.round(Math.random() * 200000), sales: Math.random() * 100000, expenses: Math.random() * 50000 }); } // 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 wijmo from '@grapecity/wijmo'; import * as wjGrid from '@grapecity/wijmo.react.grid'; import { getData } from './data'; class App extends React.Component { constructor(props) { super(props); let data = getData().sort((a, b) => { return a.country < b.country ? -1 : a.country > b.country ? +1 : a.id - b.id; }); this.state = { view: new wijmo.CollectionView(data, { useStableSort: true }) }; } ; render() { return <div className="container-fluid"> <wjGrid.FlexGrid itemsSource={this.state.view}> </wjGrid.FlexGrid> </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 { max-height: 250px; margin-bottom: 12px; } .header { display: inline-block; width: 150px; text-align: right; font-weight: normal; } export function getData() { let countries = ['US', 'Germany', 'UK', 'Japan', 'Italy', 'Greece'], colors = ['Red', 'Green', 'Blue', 'White'], data = []; // for (let i = 0; i < 200; i++) { data.push({ id: i, country: countries[i % countries.length], color: colors[i % colors.length], active: i % 5 != 0, downloads: Math.round(Math.random() * 200000), sales: Math.random() * 100000, expenses: Math.random() * 50000 }); } // return data; }