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用angular Material 做统计表格
安装 Angular Material、组件开发工具 (CDK) 和 Angular 动画库,并运行代码原理图
ng add @angular/material
表格原理图将创建一个组件,它可以渲染出一个预置了可排序、可分页数据源的 Angular Material。
ng generate @angular/material:table texe1
然后在这的基础上进行修改。
该组件的html文件
序号 {{row.id}} 岩土名 {{row.name}} 期望数量 {{row.num1}} 当前数量 {{row.num2}}
该组件的texe1-datasource.ts文件
import { DataSource } from '@angular/cdk/collections'; import { MatPaginator } from '@angular/material/paginator'; import { MatSort } from '@angular/material/sort'; import { map } from 'rxjs/operators'; import { Observable, of as observableOf, merge } from 'rxjs'; // TODO: Replace this with your own data model type export interface Texe1Item { name: string; id: number; num1: number; num2: number; } // TODO: replace this with real data from your application const EXAMPLE_DATA: Texe1Item[] = [ {id: 1, name: '粉质粘土', num1:1000, num2:100,}, {id: 2, name: '淤泥质粉质粘土', num1:1000, num2:100,}, {id: 3, name: '粘土', num1:1000, num2:100,}, {id: 4, name: '粘质粉土', num1:1000, num2:100,}, {id: 5, name: '淤泥质粘土', num1:1000, num2:100,}, {id: 6, name: '圆砾(角砾)', num1:1000, num2:100,}, {id: 7, name: '中砂', num1:1000, num2:1000,}, {id: 8, name: '有机质土', num1:1000, num2:100,}, {id: 9, name: '泥炭质土A', num1:1000, num2:100,}, {id: 10, name: '泥炭质土B', num1:1000, num2:100,}, {id: 11, name: '砂质粉土', num1:1000, num2:100,}, {id: 12, name: '粉砂', num1:1000, num2:100,}, {id: 13, name: '细砂', num1:1000, num2:100,}, {id: 14, name: '粗砂', num1:1000, num2:100,}, {id: 15, name: '砾砂', num1:1000, num2:100,}, {id: 16, name: '卵石(碎石)', num1:1000, num2:100,}, {id: 17, name: '漂石(块石)', num1:1000, num2:100,}, ]; /** * Data source for the Texe1 view. This class should * encapsulate all logic for fetching and manipulating the displayed data * (including sorting, pagination, and filtering). */ export class Texe1DataSource extends DataSource{ data: Texe1Item[] = EXAMPLE_DATA; paginator: MatPaginator | undefined; sort: MatSort | undefined; constructor() { super(); } /** * Connect this data source to the table. The table will only update when * the returned stream emits new items. * @returns A stream of the items to be rendered. */ connect(): Observable { if (this.paginator && this.sort) { // Combine everything that affects the rendered data into one update // stream for the data-table to consume. return merge(observableOf(this.data), this.paginator.page, this.sort.sortChange) .pipe(map(() => { return this.getPagedData(this.getSortedData([...this.data ])); })); } else { throw Error('Please set the paginator and sort on the data source before connecting.'); } } /** * Called when the table is being destroyed. Use this function, to clean up * any open connections or free any held resources that were set up during connect. */ disconnect(): void {} /** * Paginate the data (client-side). If you're using server-side pagination, * this would be replaced by requesting the appropriate data from the server. */ private getPagedData(data: Texe1Item[]): Texe1Item[] { if (this.paginator) { const startIndex = this.paginator.pageIndex * this.paginator.pageSize; return data.splice(startIndex, this.paginator.pageSize); } else { return data; } } /** * Sort the data (client-side). If you're using server-side sorting, * this would be replaced by requesting the appropriate data from the server. */ private getSortedData(data: Texe1Item[]): Texe1Item[] { if (!this.sort || !this.sort.active || this.sort.direction === '') { return data; } return data.sort((a, b) => { const isAsc = this.sort?.direction === 'asc'; switch (this.sort?.active) { case 'name': return compare(a.name, b.name, isAsc); case 'id': return compare(+a.id, +b.id, isAsc); default: return 0; } }); } } /** Simple sort comparator for example ID/Name columns (for client-side sorting). */ function compare(a: string | number, b: string | number, isAsc: boolean): number { return (a < b ? -1 : 1) * (isAsc ? 1 : -1); }
该组件的texe1.component.ts文件
import { AfterViewInit, Component, ViewChild } from '@angular/core'; import { MatPaginator } from '@angular/material/paginator'; import { MatSort } from '@angular/material/sort'; import { MatTable } from '@angular/material/table'; import { Texe1DataSource, Texe1Item } from './texe1-datasource'; @Component({ selector: 'app-texe1', templateUrl: './texe1.component.html', styleUrls: ['./texe1.component.css'] }) export class Texe1Component implements AfterViewInit { @ViewChild(MatPaginator) paginator!: MatPaginator; @ViewChild(MatSort) sort!: MatSort; @ViewChild(MatTable) table!: MatTable; dataSource: Texe1DataSource; /** Columns displayed in the table. Columns IDs can be added, removed, or reordered. */ displayedColumns = ['id', 'name','num1','num2']; constructor() { this.dataSource = new Texe1DataSource(); } ngAfterViewInit(): void { this.dataSource.sort = this.sort; this.dataSource.paginator = this.paginator; this.table.dataSource = this.dataSource; } }
最后再app.component.html文件中进行显示。
效果图:
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