Question

我正在Angular应用中实施就地元素编辑，并根据此答案https://stackoverflow.com/a/15453512/2026098使用我的代码，为ng-repeat中的每个条目使用editing变量。

我现在想要从ng-repeat范围之外访问此变量，以便有条件地显示/隐藏元素。基本上，我想做ng-hide="if any entry has editing==true"：

之类的事情

<div class="note" ng-hide="if any entry has editing==true">This should disappear when any entry is being edited</div>        
<div class="entry" 
     ng-repeat="entry in entries"
     ng-class="{'editing': editing}">

    <span ng-hide="editing" ng-click="editing=true">{{ entry.name }}</span>
    <span ng-show="editing" ng-click="editing=false">Editing entry...</span>
</div>

我正在努力避免使用jQuery，因为editing变量对于这项工作来说似乎是完美的，但是从我的理解中无法实现......

Answer 1

设置控制器中的计数，并在每次编辑切换时递增/递减。如果计数为0，则显示消息。

function MainCtrl($scope) {
    $scope.state = {editing: 0};
    $scope.entries = [{name: 'Entry 1'}, {name: 'Entry 2'}];
};

<body ng-app>
    <div ng-controller="MainCtrl">
        <div class="note" ng-show="state.editing == 0">This should disappear when any entry is being edited</div>        
        <div class="entry" 
             ng-repeat="entry in entries"
             ng-class="{'editing': editing}">

            <span ng-hide="editing" ng-click="editing=true; state.editing = state.editing + 1">{{ entry.name }}</span>
            <span ng-show="editing" ng-click="editing=false; state.editing = state.editing - 1">Editing entry...</span>
        </div>
    </div>
</body>

http://jsfiddle.net/LYtQU/5/

Angular - 从外部访问ngRepeat中定义的变量

1 个答案: