mirror of
https://github.com/angular/angular.git
synced 2026-09-14 13:54:52 +08:00
docs(table): simplify first basic example (#6177)
* docs(table): simplify first basic example * update docs * export Element
This commit is contained in:
Andrew Seguin
committed by
tinayuangao
tinayuangao
parent
d6f1a8d9bf
commit
a043bec9da
@@ -1,19 +1,10 @@
|
||||
/* Structure */
|
||||
.example-container {
|
||||
display: flex;
|
||||
flex-direction: column;
|
||||
max-height: 500px;
|
||||
min-width: 300px;
|
||||
}
|
||||
|
||||
.example-header {
|
||||
min-height: 64px;
|
||||
display: flex;
|
||||
align-items: center;
|
||||
padding-left: 24px;
|
||||
font-size: 20px;
|
||||
}
|
||||
|
||||
.mat-table {
|
||||
overflow: auto;
|
||||
max-height: 500px;
|
||||
}
|
||||
|
||||
@@ -4,28 +4,28 @@
|
||||
<!--- Note that these columns can be defined in any order.
|
||||
The actual rendered columns are set as a property on the row definition" -->
|
||||
|
||||
<!-- ID Column -->
|
||||
<ng-container mdColumnDef="userId">
|
||||
<md-header-cell *mdHeaderCellDef> ID </md-header-cell>
|
||||
<md-cell *mdCellDef="let row"> {{row.id}} </md-cell>
|
||||
</ng-container>
|
||||
|
||||
<!-- Progress Column -->
|
||||
<ng-container mdColumnDef="progress">
|
||||
<md-header-cell *mdHeaderCellDef> Progress </md-header-cell>
|
||||
<md-cell *mdCellDef="let row"> {{row.progress}}% </md-cell>
|
||||
<!-- Position Column -->
|
||||
<ng-container mdColumnDef="position">
|
||||
<md-header-cell *mdHeaderCellDef> No. </md-header-cell>
|
||||
<md-cell *mdCellDef="let element"> {{element.position}} </md-cell>
|
||||
</ng-container>
|
||||
|
||||
<!-- Name Column -->
|
||||
<ng-container mdColumnDef="userName">
|
||||
<ng-container mdColumnDef="name">
|
||||
<md-header-cell *mdHeaderCellDef> Name </md-header-cell>
|
||||
<md-cell *mdCellDef="let row"> {{row.name}} </md-cell>
|
||||
<md-cell *mdCellDef="let element"> {{element.name}} </md-cell>
|
||||
</ng-container>
|
||||
|
||||
<!-- Weight Column -->
|
||||
<ng-container mdColumnDef="weight">
|
||||
<md-header-cell *mdHeaderCellDef> Weight </md-header-cell>
|
||||
<md-cell *mdCellDef="let element"> {{element.weight}} </md-cell>
|
||||
</ng-container>
|
||||
|
||||
<!-- Color Column -->
|
||||
<ng-container mdColumnDef="color">
|
||||
<md-header-cell *mdHeaderCellDef>Color</md-header-cell>
|
||||
<md-cell *mdCellDef="let row" [style.color]="row.color"> {{row.color}} </md-cell>
|
||||
<ng-container mdColumnDef="symbol">
|
||||
<md-header-cell *mdHeaderCellDef> Symbol </md-header-cell>
|
||||
<md-cell *mdCellDef="let element"> {{element.symbol}} </md-cell>
|
||||
</ng-container>
|
||||
|
||||
<md-header-row *mdHeaderRowDef="displayedColumns"></md-header-row>
|
||||
|
||||
@@ -1,91 +1,58 @@
|
||||
import {Component} from '@angular/core';
|
||||
import {DataSource} from '@angular/cdk/table';
|
||||
import {BehaviorSubject} from 'rxjs/BehaviorSubject';
|
||||
import {Observable} from 'rxjs/Observable';
|
||||
import 'rxjs/add/operator/startWith';
|
||||
import 'rxjs/add/observable/merge';
|
||||
import 'rxjs/add/operator/map';
|
||||
import 'rxjs/add/observable/of';
|
||||
|
||||
/**
|
||||
* @title Basic table
|
||||
*/
|
||||
@Component({
|
||||
selector: 'table-basic-example',
|
||||
styleUrls: ['table-basic-example.css'],
|
||||
templateUrl: 'table-basic-example.html',
|
||||
})
|
||||
export class TableBasicExample {
|
||||
displayedColumns = ['userId', 'userName', 'progress', 'color'];
|
||||
exampleDatabase = new ExampleDatabase();
|
||||
dataSource: ExampleDataSource | null;
|
||||
|
||||
ngOnInit() {
|
||||
this.dataSource = new ExampleDataSource(this.exampleDatabase);
|
||||
}
|
||||
displayedColumns = ['position', 'name', 'weight', 'symbol'];
|
||||
dataSource = new ExampleDataSource();
|
||||
}
|
||||
|
||||
/** Constants used to fill up our data base. */
|
||||
const COLORS = ['maroon', 'red', 'orange', 'yellow', 'olive', 'green', 'purple',
|
||||
'fuchsia', 'lime', 'teal', 'aqua', 'blue', 'navy', 'black', 'gray'];
|
||||
const NAMES = ['Maia', 'Asher', 'Olivia', 'Atticus', 'Amelia', 'Jack',
|
||||
'Charlotte', 'Theodore', 'Isla', 'Oliver', 'Isabella', 'Jasper',
|
||||
'Cora', 'Levi', 'Violet', 'Arthur', 'Mia', 'Thomas', 'Elizabeth'];
|
||||
|
||||
export interface UserData {
|
||||
id: string;
|
||||
export interface Element {
|
||||
name: string;
|
||||
progress: string;
|
||||
color: string;
|
||||
position: number;
|
||||
weight: number;
|
||||
symbol: string;
|
||||
}
|
||||
|
||||
/** An example database that the data source uses to retrieve data for the table. */
|
||||
export class ExampleDatabase {
|
||||
/** Stream that emits whenever the data has been modified. */
|
||||
dataChange: BehaviorSubject<UserData[]> = new BehaviorSubject<UserData[]>([]);
|
||||
get data(): UserData[] { return this.dataChange.value; }
|
||||
|
||||
constructor() {
|
||||
// Fill up the database with 100 users.
|
||||
for (let i = 0; i < 100; i++) { this.addUser(); }
|
||||
}
|
||||
|
||||
/** Adds a new user to the database. */
|
||||
addUser() {
|
||||
const copiedData = this.data.slice();
|
||||
copiedData.push(this.createNewUser());
|
||||
this.dataChange.next(copiedData);
|
||||
}
|
||||
|
||||
/** Builds and returns a new User. */
|
||||
private createNewUser() {
|
||||
const name =
|
||||
NAMES[Math.round(Math.random() * (NAMES.length - 1))] + ' ' +
|
||||
NAMES[Math.round(Math.random() * (NAMES.length - 1))].charAt(0) + '.';
|
||||
|
||||
return {
|
||||
id: (this.data.length + 1).toString(),
|
||||
name: name,
|
||||
progress: Math.round(Math.random() * 100).toString(),
|
||||
color: COLORS[Math.round(Math.random() * (COLORS.length - 1))]
|
||||
};
|
||||
}
|
||||
}
|
||||
const data: Element[] = [
|
||||
{position: 1, name: 'Hydrogen', weight: 1.0079, symbol: 'H'},
|
||||
{position: 2, name: 'Helium', weight: 4.0026, symbol: 'He'},
|
||||
{position: 3, name: 'Lithium', weight: 6.941, symbol: 'Li'},
|
||||
{position: 4, name: 'Beryllium', weight: 9.0122, symbol: 'Be'},
|
||||
{position: 5, name: 'Boron', weight: 10.811, symbol: 'B'},
|
||||
{position: 6, name: 'Carbon', weight: 12.0107, symbol: 'C'},
|
||||
{position: 7, name: 'Nitrogen', weight: 14.0067, symbol: 'N'},
|
||||
{position: 8, name: 'Oxygen', weight: 15.9994, symbol: 'O'},
|
||||
{position: 9, name: 'Fluorine', weight: 18.9984, symbol: 'F'},
|
||||
{position: 10, name: 'Neon', weight: 20.1797, symbol: 'Ne'},
|
||||
{position: 11, name: 'Sodium', weight: 22.9897, symbol: 'Na'},
|
||||
{position: 12, name: 'Magnesium', weight: 24.305, symbol: 'Mg'},
|
||||
{position: 13, name: 'Aluminum', weight: 26.9815, symbol: 'Al'},
|
||||
{position: 14, name: 'Silicon', weight: 28.0855, symbol: 'Si'},
|
||||
{position: 15, name: 'Phosphorus', weight: 30.9738, symbol: 'P'},
|
||||
{position: 16, name: 'Sulfur', weight: 32.065, symbol: 'S'},
|
||||
{position: 17, name: 'Chlorine', weight: 35.453, symbol: 'Cl'},
|
||||
{position: 18, name: 'Argon', weight: 39.948, symbol: 'Ar'},
|
||||
{position: 19, name: 'Potassium', weight: 39.0983, symbol: 'K'},
|
||||
{position: 20, name: 'Calcium', weight: 40.078, symbol: 'Ca'},
|
||||
];
|
||||
|
||||
/**
|
||||
* Data source to provide what data should be rendered in the table. Note that the data source
|
||||
* can retrieve its data in any way. In this case, the data source is provided a reference
|
||||
* to a common data base, ExampleDatabase. It is not the data source's responsibility to manage
|
||||
* the underlying data. Instead, it only needs to take the data and send the table exactly what
|
||||
* should be rendered.
|
||||
* Data source to provide what data should be rendered in the table. The observable provided
|
||||
* in connect should emit exactly the data that should be rendered by the table. If the data is
|
||||
* altered, the observable should emit that new set of data on the stream. In our case here,
|
||||
* we return a stream that contains only one set of data that doesn't change.
|
||||
*/
|
||||
export class ExampleDataSource extends DataSource<any> {
|
||||
constructor(private _exampleDatabase: ExampleDatabase) {
|
||||
super();
|
||||
}
|
||||
|
||||
/** Connect function called by the table to retrieve one stream containing the data to render. */
|
||||
connect(): Observable<UserData[]> {
|
||||
return this._exampleDatabase.dataChange;
|
||||
connect(): Observable<Element[]> {
|
||||
return Observable.of(data);
|
||||
}
|
||||
|
||||
disconnect() {}
|
||||
|
||||
Reference in New Issue
Block a user