import { BsDropdownModule } from 'ngx-bootstrap/dropdown';

@NgModule({
    imports: [CommonModule, FormsModule, HttpClientModule, RouterModule.forChild(groupRoutes), BsDropdownModule.forRoot()],
})

<div class="btn-group" dropdown>
            <button dropdownToggle type="button" class="btn btn-secondary dropdown-toggle">
                {{selectedRecipientSource.name}}<span class="caret"></span>
            </button>
            <ul *dropdownMenu class="dropdown-menu" role="menu">
                <li role="menuitem" *ngFor="let recipientSrc of groupViewModel.allRecipients"><a class="dropdown-item" (click)="selectRecipient(recipientSrc)">{{recipientSrc.name}}</a></li>
            </ul>
            <input type="button" value="Добавить получателя" (click)="saveGroupRecipient()" class="btn btn-primary" style="margin-left:10px" />
        </div>