clr-angular-static-fix/data/datagrid/datagrid-detail-registerer.ts

1. Install Clarity Icons package through npm:

/*
 * Copyright (c) 2016-2018 VMware, Inc. All Rights Reserved.
 * This software is released under MIT license.
 * The full license information can be found in LICENSE in the root directory of this project.
 */
import { Directive, Optional } from '@angular/core';
import { ExpandableRowsCount } from './providers/global-expandable-rows';

/*
 * I don't think this deserves to be in IfExpanded itself,
 * so I'm adding a second directive on the same selector for now just for the datagrid
 */
@Directive({ selector: '[clrIfExpanded]' })
export class DatagridDetailRegisterer {
  constructor(@Optional() private expandableRowsCount: ExpandableRowsCount) {
    if (this.expandableRowsCount) {
      this.expandableRowsCount.register();
    }
  }

  ngOnDestroy() {
    if (this.expandableRowsCount) {
      this.expandableRowsCount.unregister();
    }
  }
}