angularjs 中的自动 select 值

Question

如果选项只有一个

，我如何 select 自动 select 值

<select class="perf-select" ng-model="viewProfileCtrl.neft.institution"
   ng-options="inst.institution.institution_id as inst.institution.name for inst in viewProfileCtrl.perfiosAnalysisData.institutions"
   ng-change="viewProfileCtrl.setCurrNeftInsti(viewProfileCtrl.neft.institution, 'neftCredit')">
   <option value=""  selected>Select a Bank</option>
</select>

我的问题是，如果我有多个选项，它会询问 select 选项，如果它只有一个，它需要自动 select 并显示我如何解决这个问题的值

Answer 1

这样试试。

var app = angular.module('anApp', []);
app.controller('aCtrl', function($scope) {

  $scope.chooses = [{"key":"one","value":1},{"key":"Two","value":2},{"key":"Three","value":3}];
  
   $scope.chooses2 = [{"key":"one","value":1}];
  $scope.setDefault = function(){
    if($scope.chooses.length ==1)
      $scope.model = $scope.chooses[0].value;
  }
  
    $scope.setDefault2 = function(){
    if($scope.chooses2.length ==1)
      $scope.model2 = $scope.chooses2[0].value;
  }
})

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="anApp" ng-controller="aCtrl">
    <select ng-init="setDefault()" ng-model="model" ng-options="k.value as k.key for  k in chooses">
     </select>
     
        <select ng-init="setDefault2()" ng-model="model2" ng-options="k.value as k.key for  k in chooses2">
     </select>
</div>

angularjs 中的自动 select 值

ng auto select value in angularjs

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