首页 > 解决方案 > Angular Material 分页器 nextPage 属性

问题描述

我总共有250项目,我正在显示5它们,即pageSize设置为 5。我已将paginator.length属性设置为items.length

现在,这里有两个问题:

即使我手动设置了,paginator.length但是当我设置console.log分页器的属性时,它会显示5(这是我每页显示的项目数)。因此next分页器的按钮被禁用。

如何启用该next按钮,以便在单击它时我会知道并向服务器请求下一个数据。请记住:我在这方面只使用后端分页。分页信息在服务器的响应标头中传递。这是我的代码

pageIndex=1;
pageNumber;
pagination;
ngOnInit(): void {
    this.paginator.pageSize = 5;
    this.paginator.pageIndex = this.pageIndex;

    this.salesReportService.getDailyReport().subscribe((response) => {
      console.log('Response of sales report : ', response);
      this.reports = response.body;
      this.pagination=response.headers.get('X-Pagination');
      console.log('PaginationInformation: ',this.pagination)

      this.paginator.length=this.pagination.TotalCount;

      console.log('paginator properties: ', this.paginator);
      console.log('paginator hasNextpage(): ', this.paginator.hasNextPage());
      this.dataSource = new MatTableDataSource(this.reports);
      this.dataSource.paginator = this.paginator;
      this.dataSource.sort = this.sort;
    }, (error) => {
      console.log('Error occured while fetching sales report: ', error);
    });
  }
// here I'd call the function to get the next data when the next button of paginator is clicked.

// something like this
this.salesReportService.getReports(pageNumber:2) 

标签: javascriptangularangular-material

解决方案


这是因为您首先设置了分页器长度,然后尝试执行以下行

   this.dataSource = new MatTableDataSource(this.reports);
  this.dataSource.paginator = this.paginator;

这使得分页器将长度设置为数据源中可用的数据。

因此,在上述两行之后,请在您的代码中保留以下行。

  this.paginator.length=this.pagination.TotalCount; // this.paginator.length= 'No Of Records';

希望能帮助到你!


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