Bind Dropdown and Two way binding in Angular 7

"ddlDepartment" Bind this array type variable with json which columns names for Id should be Id and for Name should be Name.


 <select id="ddlDept" [(ngModel)]="DepartmentId" (change)="GetSubDepartmentFromDepartmentSetup()">
                  <option *ngFor="let _data of ddlDepartment" [ngValue]="_data.Id">{{_data.Name}}</option>
                </select>