Angularjs：用户选择ui-select-choice中的ng-click

<ui-select ng-model="datactrl.newservice.selected" theme="selectize" ng-disabled="disabled" style="width: 100%;">
    <ui-select-match placeholder="...">
        <span ng-bind-html="$select.selected.name"></span>          
    </ui-select-match>
    <ui-select-choices repeat="service in data.base_services | filter: $select.search">
        <span ng-bind-html="service.name | highlight: $select.search"></span>

        <!-- HERE NOT -->
        <a href="" class="pull-right" ng-click="setnewservice()">
            <i class="glyphicon glyphicon-plus-sign"></i>
        </a>    
        <!-- ### -->

    </ui-select-choices>
</ui-select>                            


<!-- here obviously works -->
<a href="" class="pull-right" ng-click="setnewservice()">
    <i class="glyphicon glyphicon-plus-sign"></i>
</a>

我可以向函数发送一些参数并处理这种情况,甚至选择该项目索引的点击链接,以便模型采用正确的值,
或者像上面的工作样品一样把它带到外面……

但是我怎样才能正确处理这个,停止事件,选择选项而不发送对象或它的一些属性,然后做其余的事情？

$scope.setnewservice = function ($event) {
    $event.stopPropagation();
    // ??
}