我有一个问题,我有点迷失了。我有材料扩展面板,其标题是通过循环包含我拥有的数据的变量来填充的,该变量是一个对象数组 - 在该对象数组中,有一个键,其值是扩展面板标题。还有一个键,它的值是另一个对象数组,我想循环通过它来填充每个扩展面板内的材质表。
这是我到目前为止...
标题组.ts:
export const titles = [
{
title: 'First Title',
titleId: 'firstTitle',
info: [
{ name: 'Info One', code: 'infoOne' },
{ name: 'Info Two', code: 'infoTwo' },
{ name: 'Info Three', code: 'infoThree' },
{ name: 'Info Four', code: 'infoFour' }
]
},
{
title: 'Second Title',
titleId: 'secondTitle',
info: [
{ name: 'Package', code: 'package' },
{ name: 'Package Two', code: 'packageTwo' }
]
},
{
title: 'Third Title',
titleId: 'thirdTitle',
info: [
{ name: 'Widget One', code: 'widgetOne' },
{ name: 'Widget Two', code: 'widgetTwo' },
{ name: 'Widget Three', code: 'widgetThree' },
{ name: 'Widget Four', code: 'widgetFour' }
]
}
]
标题.component.ts:
import {Component} from '@angular/core';
import {SelectionModel} from '@angular/cdk/collections';
import {MatTableDataSource} from '@angular/material';
import {titles} from './titleGroups';
export interface TitleNames {
name: string;
}
const TITLES: any[] = titles;
let TITLE_NAMES;
for(let i = 0; i < TITLES.length; i++)
for(let j = 0; j < TITLES[i].info.length; j++)
TITLE_NAMES = TITLES[i].info;
@Component({
selector: 'aa-titles',
templateUrl: './aa-titles.component.html',
styleUrls: ['./aa-titles.component.scss']
})
export class TitlesComponent {
displayedColumns: string[] = ['select', 'name'];
dataSource = new MatTableDataSource<TitleNames>(TITLE_NAMES);
selection = new SelectionModel<TitleNames>(true, []);
titleData: any;
constructor() {
this.titleData = TITLES;
}
isAllSelected() {
const numSelected = this.selection.selected.length;
const numRows = this.dataSource.data.length;
return numSelected === numRows;
}
masterToggle() {
this.isAllSelected() ?
this.selection.clear() :
this.dataSource.data.forEach(row => this.selection.select(row));
}
}
标题.component.html:
<mat-accordion multi="true">
<mat-expansion-panel *ngFor="let item of titleData">
<mat-expansion-panel-header>{{item.title}}</mat-expansion-panel-header>
<table mat-table [dataSource]="dataSource" class="mat-elevation-z8">
<!-- Checkbox Column -->
<ng-container matColumnDef="select">
<th mat-header-cell *matHeaderCellDef>
<mat-checkbox (change)="$event ? masterToggle() : null"
[checked]="selection.hasValue() && isAllSelected()"
[indeterminate]="selection.hasValue() && !isAllSelected()">
</mat-checkbox>
</th>
<td mat-cell *matCellDef="let row">
<mat-checkbox (click)="$event.stopPropagation()"
(change)="$event ? selection.toggle(row) : null"
[checked]="selection.isSelected(row)">
</mat-checkbox>
</td>
</ng-container>
<!-- Name Column -->
<ng-container matColumnDef="name">
<th mat-header-cell *matHeaderCellDef> Name </th>
<td mat-cell *matCellDef="let element"> {{element.name}} </td>
</ng-container>
<tr mat-header-row *matHeaderRowDef="displayedColumns"></tr>
<tr mat-row *matRowDef="let row; columns: displayedColumns;"
(click)="selection.toggle(row)">
</tr>
</table>
</mat-expansion-panel>
</mat-accordion>
发生的情况是,在每个扩展面板下,它仅显示每个扩展面板下titleGroups.ts中标题的最后一个元素的数据。
我想要的是相应的扩展面板显示正确的数据
第一个标题扩展面板显示一个表格,其中显示:
Info One
Info Two
Info Three
Info Four
第二个标题扩展面板显示一个表格,其中显示:
Package
Package Two
等等。我不知道如何做到这一点 - 任何帮助将不胜感激,谢谢!