Angular 7 - 重新加载数据表中的数据

Question

我正在使用 Angular 7 和 Angular-Datatables。 我试图定义一个“重新渲染”按钮以重新加载数据 like in this example .

我不明白我应该在渲染函数中放置什么:

我的API函数:

fn_getFavoriteTables() {

  this._getFavoriteTablesApiCall =  this.getFavoriteTablesService.getFavoriteTables(Number(localStorage.getItem('UserID')), Number(localStorage.getItem('BranchID'))).pipe(takeUntil(this.destroySubject$)).subscribe(x => {
        this.getFavoriteTables = x;
        this.dtTrigger.next();
    });

};

渲染函数:

rerender(): void {
    this.dtElement.dtInstance.then((dtInstance: DataTables.Api) => {
        // Destroy the table first 

        dtInstance.destroy();


        // Call the dtTrigger to rerender again
        this.dtTrigger.next();
    });
}

ngOnDestroy(): void {
  console.log('ngDestroy');
  // Do not forget to unsubscribe the event
  this.dtTrigger.unsubscribe();
}

Answer 1

也可以这样完成:

import { DataTableDirective } from 'angular-datatables';

dtElement: DataTableDirective;
dtInstance: Promise<DataTables.Api>;

rerender(): void  {
  this.dtElement.dtInstance.then((dtInstance: DataTables.Api) => {
    dtInstance.ajax.reload()
  });
}