Question

在我的下面的脚本中，我试图在ng-change事件中获取 li 元素的id，我将$ element注入到我的控制器中，现在我可以向li添加新的id但是

问题是，当我试图获取li的id时，不给了我更新的值。它总是返回0.

以下是脚本：

＆＃13;

var app = angular.module('myApp', []);

app.controller("baseCtrl", ['$scope',
  function($scope) {
    $scope.id = 0;
    $scope.drivers = [];

  }
]);

app.controller("childCtrl", ['$scope', '$element',
  function($scope, $element) {

    $scope.driver = {
      name: "",
      country: ""
    };

    $scope.change = function() {

      if ($scope.driver.name && $scope.driver.country) {
        var $id = $element.data('id');

        console.log($id);

        if ($scope.$parent.drivers.length > 0 && $id > 0) {
          var $action = "update";
        } else {
          var $action = "insert";
        }


        if ($action == "update") {
          $.each($scope.$parent.drivers, function(i, v) {
            $scope.driver.id = $id;
            if ($id == v.id) { // update
              v[i] = $scope.driver;
            }
          });
        } else if ($action == 'insert') { // insert data
          //console.log($element);
          $scope.driver.id = ++$scope.$parent.id;
          $scope.$parent.drivers.push($scope.driver);
          $element.attr('data-id', $scope.$parent.id);
        }
        //console.log($scope.$parent.id);
        //console.log($scope.$parent.drivers);



      }
    };





  }
]);

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<!DOCTYPE html>


<body ng-app="myApp">
  <div id="content" ng-controller="baseCtrl">
    <ul>
      <li ng-controller="childCtrl" data-id="0">
        <input type="text" ng-model="driver.name" name="fname" ng-change="change()">
        <select name="" id="" name="country_f" ng-model="driver.country" ng-change="change($event)">
          <option value="india">India</option>
          <option value="pakistan">Pakistan</option>
          <option value="china">China</option>
        </select>
      </li>
      <li ng-controller="childCtrl" data-id="0">
        <input type="text" ng-model="driver.name" name="fname" ng-change="change()">
        <select name="" id="" name="country_f" ng-model="driver.country" ng-change="change()">
          <option value="india">India</option>
          <option value="pakistan">Pakistan</option>
          <option value="china">China</option>
        </select>
      </li>
      <li ng-controller="childCtrl" data-id="0">
        <input type="text" ng-model="driver.name" name="fname" ng-change="change()">
        <select name="" id="" name="country_f" ng-model="driver.country" ng-change="change()">
          <option value="india">India</option>
          <option value="pakistan">Pakistan</option>
          <option value="china">China</option>
        </select>
      </li>
      <li ng-controller="childCtrl" data-id="0">
        <input type="text" ng-model="driver.name" name="fname" ng-change="change()">
        <select name="" id="" name="country_f" ng-model="driver.country" ng-change="change()">
          <option value="india">India</option>
          <option value="pakistan">Pakistan</option>
          <option value="china">China</option>
        </select>
      </li>
    </ul>

  </div>
</body>

</html>

＆＃13;

任何帮助都会非常感激。提前致谢。

注入控制器的$元素并没有给我更新的值

0 个答案: