<ng-container *ngFor="let service of serviceOptions; let i=index">
    <label *ngIf="service.hasAddons"><b>AddOns</b></label>
    <p *ngFor="let addon of service.addonOptions" >
        <ng-container *ngIf="service.serviceId == addon.serviceId">
            <md-checkbox formControlName="addonName" type="checkbox" [ngModel]="addon.isChecked" [checked]="true" (change)="selectServiceAddon($event.checked,addon)">{{addon.addonName}}</md-checkbox>
        </ng-container>
        </p>