我有一个视图,其中父div具有ng-if,并且一些子元素具有ng-show.当嵌套在具有ng-if的元素下时,ng-show似乎无法正常工作.这是一个Angular bug还是我做错了什么？
See this plunker.
HTML：
<!-- with ng-if on the parent div,the toggle doesn't work -->
<div ng-if="true">
<div>
visibility variable: {{showIt}}
</div>
<div ng-show="!showIt">
<a href="" ng-click="showIt = true">Show It</a>
</div>
<div ng-show="showIt">
This is a dynamically-shown div.
<a href="" ng-click="hideIt()">Hide it</a>
</div>
</div>
<br/><br/>
<!-- with ng-show on the parent div,it works -->
<div ng-show="true">
<div>
visibility variable: {{showIt}}
</div>
<div ng-show="!showIt">
<a href="" ng-click="showIt = true">Show It</a>
</div>
<div ng-show="showIt">
This is a dynamically-shown div.
<a href="" ng-click="hideIt()">Hide it</a>
</div>
</div>
JavaScript：
scope.hideIt = function () {
scope.showIt = false;
};
谢谢,
安迪
与ng-show不同,ng-if指令创建一个新范围.
因此,如果在子范围内而不是在主范围上设置showIt属性,则在ng内部编写showIt = true.
要修复它,请使用$parent访问父作用域上的属性：
<div ng-if="true">
<div>
visibility variable: {{showIt}}
</div>
<div ng-show="!showIt">
<a href="" ng-click="$parent.showIt = true">Show It</a>
</div>
<div ng-show="showIt">
This is a dynamically-shown div.
<a href="" ng-click="hideIt()">Hide it</a>
</div>
</div>
演示Plunker.