How To Show No Records Found | Mat Table | Angular

How to show no records found in Mat Table Angular?

Assuming this is your code where you are making the API call and creating the mat table data source.

import { Component, OnInit } from '@angular/core';
import { MatTableDataSource } from '@angular/material/table';
import { DataService } from './data.service';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent implements OnInit {

  dataSource : any = null;

  columnsToDisplay = ['name','username','email', 'website'];

  constructor(private service : DataService){}

  ngOnInit(){
    this.service.getUsers().subscribe((response:any) => {
      this.dataSource = new MatTableDataSource(response);
    })
  }
}

Now based on the dataSource being null or not you can show the table or no records message in your HTML file.

<div class="container">

  <table *ngIf="dataSource" mat-table [dataSource]="dataSource" class="mat-elevation-z8">

    <ng-container matColumnDef="name">
      <th mat-header-cell *matHeaderCellDef> Name </th>
      <td mat-cell *matCellDef="let element">  </td>
    </ng-container>

    <ng-container matColumnDef="username">
      <th mat-header-cell *matHeaderCellDef> UserName </th>
      <td mat-cell *matCellDef="let element">  </td>
    </ng-container>

    <ng-container matColumnDef="email">
      <th mat-header-cell *matHeaderCellDef> Email </th>
      <td mat-cell *matCellDef="let element">  </td>
    </ng-container>

    <ng-container matColumnDef="website">
      <th mat-header-cell *matHeaderCellDef> Website </th>
      <td mat-cell *matCellDef="let element">  </td>
    </ng-container>

    <tr mat-header-row *matHeaderRowDef="columnsToDisplay"></tr>
    <tr mat-row *matRowDef="let row; columns: columnsToDisplay;"></tr>
  </table>

  <div *ngIf="!dataSource">
    No records found
  </div>

</div>