CODEWITHSUNDEEP
angularangular-materialangular-material-table
Ishan Phadke
Ishan Phadke

Reputation: 15

Mat-Table from angular materials not displaying data

I am trying to display some data from an api in a mat table. However, even though I can see the data in the console, it will not show up in the mat table. The console shows no errors concerning the mat table and the titles of the columns appear properly.

I have already tried to use the async keyword to get the rest api data before the rest of the component is loaded.

This is my component

@Component({
  selector: 'admin-dashboard',
  templateUrl: './admin.component.html',
  providers: [HTTPService],
  styleUrls: ['./admin.component.css']
})
export class AdminComponent implements OnInit{
  showForm= false;
  buttonName= "Add User";
  users:User= [];
  tableColumns: string[] = ['name', 'email', 'company', 'phoneNumber', 'enabled', 'status'];

  constructor(private fb: FormBuilder, private http: HTTPService){};

  ngOnInit(){
      this.getUsers();
  }

  async getUsers()
  {
    var arr= await this.http.listUsers().toPromise();
    var i=0;
    while(arr[i])
    {
      this.users.push(arr[i]);
      i++;
    }
    console.log(this.users);

This is the html template


<table mat-table [dataSource]="users">
  <ng-container matColumnDef="name">
    <th mat-header-cell *matHeaderCellDef>Name</th>
    <td mat-cell *matCellDef="let user">{{user.name}}</td>
  </ng-container>
  <ng-container  matColumnDef="email">
    <th mat-header-cell *matHeaderCellDef>Email</th>
    <td mat-cell *matCellDef="let user">{{user.email}}</td>
  </ng-container>
  <ng-container  matColumnDef="company">
    <th mat-header-cell *matHeaderCellDef>Company</th>
    <td mat-cell *matCellDef="let user">{{user.company}}</td>
  </ng-container>
  <ng-container  matColumnDef="phoneNumber">
    <th mat-header-cell *matHeaderCellDef>Phone Number</th>
    <td mat-cell *matCellDef="let user">{{user.phoneNumber}}</td>
  </ng-container>
  <ng-container  matColumnDef="enabled">
    <th mat-header-cell *matHeaderCellDef>Enabled</th>
    <td mat-cell *matCellDef="let user">{{user.enabled}}</td>
  </ng-container>
  <ng-container  matColumnDef="status">
    <th mat-header-cell *matHeaderCellDef>Status</th>
    <td mat-cell *matCellDef="let user">{{user.status | lowercase}}</td>
  </ng-container>
  <tr mat-header-row *matHeaderRowDef="tableColumns"></tr>
  <tr mat-row *matRowDef="let row; columns: tableColumns"></tr>
</table>

Please let me know if more information is required, I am new to StackOverflow

Upvotes: 1

Views: 1929

Answers (1)

Sudarshana Dayananda
Sudarshana Dayananda

Reputation: 5255

Try setting dataSource of mat-table using new MatTableDataSource as follows.

TS

export class AdminComponent implements OnInit {

    dataSource;

    constructor(...){};

    ngOnInit() {

        this.getUsers();
    }

    async getUsers() {

        const arr = await this.http.listUsers().toPromise();
        let i = 0;
        while(arr[i]) {
            this.users.push(arr[i]);
            i++;
        }
        this.dataSource = new MatTableDataSource<any>(this.users);
    }
}

HTML

<table mat-table [dataSource]="dataSource">
...
</table>

Upvotes: 1

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