Overlay Loading Directive > Table Basic Example Component

table-basic-example.component.ts

import { Component, ViewChild, ElementRef } from '@angular/core';
import { DynamicOverlay } from '../dynamic-overlay';
import { MatTable } from '@angular/material';
import { ComponentPortal } from '@angular/cdk/portal';
import { LoaderComponent } from '../loader/loader.component';

export interface PeriodicElement {
  name: string;
  position: number;
  weight: number;
  symbol: string;
}

const ELEMENT_DATA: PeriodicElement[] = [
  { position: 1, name: 'Hydrogen', weight: 1.0079, symbol: 'H' },
  { position: 2, name: 'Helium', weight: 4.0026, symbol: 'He' },
  { position: 3, name: 'Lithium', weight: 6.941, symbol: 'Li' },
  { position: 4, name: 'Beryllium', weight: 9.0122, symbol: 'Be' },
  { position: 5, name: 'Boron', weight: 10.811, symbol: 'B' },
  { position: 6, name: 'Carbon', weight: 12.0107, symbol: 'C' },
  { position: 7, name: 'Nitrogen', weight: 14.0067, symbol: 'N' },
  { position: 8, name: 'Oxygen', weight: 15.9994, symbol: 'O' },
  { position: 9, name: 'Fluorine', weight: 18.9984, symbol: 'F' },
  { position: 10, name: 'Neon', weight: 20.1797, symbol: 'Ne' },
];

@Component({
  selector: 'app-table-basic-example',
  template:
    `<button mat-raised-button
    color="primary"
    (click)="refresh()">Refresh</button>
    <br>
    <table mat-table [dataSource]="dataSource" class="mat-elevation-z8">
      <ng-container matColumnDef="position">
        <th mat-header-cell *matHeaderCellDef> No. </th>
        <td mat-cell *matCellDef="let element"> {{element.position}} </td>
      </ng-container>
      <ng-container matColumnDef="name">
        <th mat-header-cell *matHeaderCellDef> Name </th>
        <td mat-cell *matCellDef="let element"> {{element.name}} </td>
      </ng-container>
      <ng-container matColumnDef="weight">
        <th mat-header-cell *matHeaderCellDef> Weight </th>
        <td mat-cell *matCellDef="let element"> {{element.weight}} </td>
      </ng-container>
      <ng-container matColumnDef="symbol">
        <th mat-header-cell *matHeaderCellDef> Symbol </th>
        <td mat-cell *matCellDef="let element"> {{element.symbol}} </td>
      </ng-container>
      <tr mat-header-row *matHeaderRowDef="displayedColumns"></tr>
      <tr mat-row *matRowDef="let row; columns: displayedColumns;"></tr>
    </table>`,
  styles: [`table { width: 100%; }`]
})
export class TableBasicExampleComponent {
  displayedColumns: string[] = ['position', 'name', 'weight', 'symbol'];
  dataSource = ELEMENT_DATA;

  @ViewChild(MatTable, { static: false, read: ElementRef }) table: ElementRef;

  constructor(private dynamicOverlay: DynamicOverlay) {
  }

  refresh() {
    const overlayRef = this.dynamicOverlay.createWithDefaultConfig(this.table.nativeElement);

    overlayRef.attach(new ComponentPortal(LoaderComponent));
  }
}