angularjs异步设置Select选择框的默认值

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###angularjs异步设置Select选择框的当前栏目为默认值 html

<div class="form-group"><label class="col-sm-3 control-label no-padding-right ng-pristine ng-untouched ng-valid ng-binding" for="groupvalue" ng-change="gchange()" ng-model="selectGroup">更改组</label><div class="col-sm-9"><select style="float:left;width:83%" class=" ng-pristine ng-untouched ng-valid" ng-model="nggroup" ng-options="a.id as a.name for a in groups"><!--<option value=""></option>--></select></div></div>

angular:

$http.get('/api/v1.0/webs').success(function (response) {$rootScope.groups = response.allgroup;$scope.groups = $rootScope.groups;}).error(function () {alert('获取数据失败');});

//这里是你要给出当前栏目id,可以在html模板中给出groupid=12,然后在angularjs中取到:$scope.nggroup=groupid;

这里是关键:$scope.nggroup 对应ng-model="nggroup"