处理大型数据集时，无法在mat-paginator中设置初始pageIndex [英] Not able to set initial pageIndex in mat-paginator when dealing with large datasets

问题描述

从这篇SO 帖子中我了解到，为了处理大型数据集，您应该设置dataSource.paginator 在ngAfterViewInit中的 dataSource.data之前.

From this SO post i learned that in order to deal with large datasets you should set dataSource.paginator before dataSource.data in ngAfterViewInit.

但是，在执行此操作时，我无法使用this.paginator.pageIndex设置初始pageIndex.

However when doing this I am not able to set an initial pageIndex using this.paginator.pageIndex.

https://stackblitz.com/edit/angular-mat-table-v2

当我将数据加载到ngOnInit中，并将分页器加载到ngAfterViewInit中时，我可以设置初始pageIndex:

When I load my data in ngOnInit and the paginator after this in ngAfterViewInit, I am able to set the initial pageIndex:

https://stackblitz.com/edit/angular-mat-table-v1

推荐答案

您可以尝试以下操作:

  ngOnInit() {
     this.dataSource.paginator = this.paginator;
  }

  ngAfterViewInit() {
    setTimeout(() => {
     this.paginator.pageIndex = 3;
     this.todos$.subscribe((todos) => this.dataSource.data = todos);
    }, 0);
  }

这篇关于处理大型数据集时，无法在mat-paginator中设置初始pageIndex的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！