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单页中的多个Mat-Paginator(Angular 5数据表)

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我在一个页面中有两个Angular Data Tables . 我从Web服务器(异步)获取数据 . 我为此创建了一个独立的组件 . 我的第一个表正确显示并绑定到排序和分页器,但第二个表不起作用 . 虽然它显示了数据,但是paginator和sort在第二个表上不起作用 . 有什么想法可能是什么问题?

我的组件TS文件:

displayedColumns = ['customerId', 'projectId'];
@Input() dataSource2 = new MatTableDataSource<ScheduledTest>();
private paginator: MatPaginator;
private sort: MatSort;

@ViewChild(MatPaginator) set matPaginator(mp: MatPaginator) {
this.paginator = mp;
this.dataSource2.paginator = this.paginator;
}

@ViewChild(MatSort) set matSort(mp: MatSort) {
this.sort = mp;
this.dataSource2.sort = this.sort;
}

ngOnInit() {
this.getAllCurrentTestCases();
}

getAllCurrentTestCases() {
this.isError = false;
this.isLoading = true;
this.httpService.getAllCurrentTestCases(this.userService.accountNumber, this.userService.authToken)
  .then((data: AutomatedTest[]) => {
    this.isLoading = false;
    this.dataSource2 = new MatTableDataSource<AutomatedTest>(data);
    this.dataSource.sort = this.sort;
  })
  .catch(error => {
    this.isError = true;
  });
}

组件HTML:

<mat-table #table [dataSource]="dataSource2" matSort>

<ng-container matColumnDef="customerId">
  <mat-header-cell *matHeaderCellDef mat-sort-header>
    <b> Customer ID </b>
  </mat-header-cell>
  <mat-cell *matCellDef="let element"> {{element.data.customerId | uppercase }} </mat-cell>
</ng-container>

<ng-container matColumnDef="projectId">
  <mat-header-cell *matHeaderCellDef mat-sort-header>
    <b> Project ID </b>
  </mat-header-cell>
  <mat-cell *matCellDef="let element"> {{element.data.projectId | uppercase}} </mat-cell>
</ng-container>
<mat-header-row *matHeaderRowDef="displayedColumns"></mat-header-row>
<mat-row *matRowDef="let row; columns: displayedColumns;" matRipple class="element-row" [cdkDetailRow]="row" [cdkDetailRowTpl]="tpl"
  (toggleChange)="onToggleChange($event)"></mat-row>
<!-- <mat-row *matRowDef="let row; columns: ['expandedDetail']; when: isExpansionDetailRow" [@detailExpand]="row.element == expandedElement ? 'expanded' : 'collapsed'"
    style="overflow: hidden">
  </mat-row> -->

我的渲染页面

<app-table-com></app-table-com>
<app-table-com></app-table-com>

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