angularjs~中的下拉框,以及数据的回显,并且还可以实现下拉框的功能

两种实现方式

     一 ,第一种就是使用select来实现下拉框,如下

<div class="input-select" >
  <select ng-model="areaId" class="js-input-select-title" ng-change="queryCityByQuYu()">
     <option value="--请选择区域--">--请选择区域--</option>
     <option ng-repeat="areaValueViewList in areaValueViewLists" ng-value="areaValueViewList.id">{{areaValueViewList.value}}</option>
  </select>
</div> 
<div class="input-select">
   <select ng-model="cityIds" class="js-input-select-title">
      <option value="--请选择城市--">--请选择城市--</option>
      <option ng-repeat="platformCustomerDictionaryValue in platformCustomerDictionaryValues" value="{{platformCustomerDictionaryValue.id}}">{{platformCustomerDictionaryValue.value}}</option>
   </select>
</div>
    $scope.areaId="--请选择区域--"; 
    $scope.cityIds="--请选择城市--"; 
    //通过区域查询对应的城市--创建时
    $scope.queryCityByQuYu = function()
    {
    	if($scope.areaId == undefined || $scope.areaId == "undefined" || $scope.areaId =="--请选择区域--")
    	{
    		return;
    	}
    }

 其中下拉框选中了,将会把值付给ng-model,这样就可以通过ng-change方法来实现,

     回显代码,如下

<div class="input-select">
     <select ng-model="upAreaId" class="js-input-select-title" ng-change="queryCityByQuYuBj()">
          <option ng-repeat="areaValueViewList in areaValueViewLists" value="{{areaValueViewList.id}}" ng-selected="upAreaId=={{areaValueViewList.id}}">{{areaValueViewList.value}}</option>
    </select>
</div> 
<div class="input-select">
    <select ng-model="upCityId" class="js-input-select-title" >
        <option ng-show="upCityId==upCityIdTwo" ng-value="upCityId" ng-selected="true">{{upCityName}}</option>
        <option ng-repeat="cityValueViewList in cityListBj" value="{{cityValueViewList.id}}" >{{cityValueViewList.value}}</option>
    </select>
</div>

==>upCityId==upCityIdTwo是用来显示原本的数据是否消失