Is there a way to do a ng-hide on a html div?

问题

I am trying to hide my div that has id="crossfade" where there is an ng-click event.

1) Is this possible? 2) What am I doing wrong?

<!DOCTYPE html>
<html lang="en" ng-app="myContent">
<head>
<meta charset="UTF-8">
<title>ShopME Tops</title>
<link rel="stylesheet" type="text/css" href="mystyle.css"/>
<link rel="stylesheet" 
 href="https://cdnjs.cloudflare.com/ajax/libs/font-
 awesome/4.7.0/css/font-awesome.min.css">
<script type="text/javascript" 
src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js">
</script>
<script type="text/javascript"src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js
"></script>
<script type="text/javascript" src="myscript.js"></script>
</head>

<body ng-controller="ContentController">

<header>
<div class="header-inner2">
    <nav>
        <ul class="center">
            <li><a ng-click="getData('SWIMWEAR')">SWIMWEAR</a></li>
            <li><a ng-click="getData('TOPS')">TOPS</a></li>
            <li><a ng-click="getData('BOTTOMS')">BOTTOMS</a></li>
            <li><a ng-click="getData('DRESSES')">DRESSES</a></li>
            <li><a ng-click="getData('SHOES')">SHOES</a></li>
            <li><a ng-click="getData('ACCESSORIES')">ACCESSORIES</a 
            </li>
        </ul>
    </nav>
</div>
</header>

<!-- crossfade images-->
<div id= "crossfade" ng-hide="getData('TOPS')">
    <img src="images/cover1.png" alt="#">
    <img src="images/cover2.png" alt="#">
    <img src="images/cover3.png" alt="#">
    <img src="images/cover4.png" alt="#">
    <img src="images/cover5.png" alt="#">
</div>

<!-- Container for grid layout -->
<div class="container">
    <div class="row">
        <div class="col" ng-repeat="x in filtered | limitTo:4">
            <img class="img-responsive1" ng-src="{{x.source}}" alt="#">
        </div>
    </div>
</div>

</body>
</html>

So basically, anytime something in the nav bar is clicked I want to hide the crossfade div.

Here is the line of code that Im working with :

<div id= "crossfade" ng-hide="getData('TOPS')">

So in particular, when TOPS is clicked hide the div crossfade.

Instead of this happening when I load the page I get my crossfade and my TOPS data and I cant click on anything else.

Ive also experimented with ng-if and ng-init. Ng-init almost worked but my crossfade isnt implemented in angular.js it is mainly css.

回答1:

Yes this is definitely possible. ng-hide expects a boolean value, either true or false. Is getData('Tops') returning a boolean in your controller? I would recommend using a $scope variable rather than a function to control the behavior of ng-hide. So in your getData() function, you could assign something like: $scope.hideCrossfade = true;.

Then in your view, just use <div id= "crossfade" ng-hide="hideCrossfade">. You can always change $scope.hideCrossfade = false; in your controller to make the div visible again.

回答2:

<div id= "crossfade" ng-hide="hideCrossfade">
    <img src="images/cover1.png" alt="#">
    <img src="images/cover2.png" alt="#">
    <img src="images/cover3.png" alt="#">
    <img src="images/cover4.png" alt="#">
    <img src="images/cover5.png" alt="#">
</div>

and in the controller set

$scope.hideCrossfade = true;

probably inside the function getData.

I would recommend not using ids in angular. Also, ng-show, ng-hide, ng-if = "someFunction()" is also generally discouraged.

回答3:

It's a little hard to figure out exactly what is wrong without seeing the getData function but from what I can see, heres some suggestions

Firstly, never bind to a function, its hard to debug and its costly performance wise.

Here is a solution that will work. I'd suggest either hard coding properties for each item or use an array. I've used a single property here for simplicity.

HTML

<header>
<div class="header-inner2">
    <nav>
        <ul class="center">
            <li><a ng-click="showSwimwear()">SWIMWEAR</a></li>
            ...
        </ul>
    </nav>
</div>
</header>

<div id= "crossfade" ng-hide="swimwearVisible">
    <img src="images/cover1.png" alt="#">
    ...
</div>

swimwearVisible = false;

showSwimwear(){
    this.swimwearVisible = !this.swimwearVisible;
}

All being well the div will show and hide when you click the link. It'll also show the current state to help you debug.

回答4:

If they are in the same controller you can just set a scope variable to ng-hide. something like:

$scope.hideCrossfade = false;

function getData(mType) {
    $scope.hideCrossfade = true;
}

and in your html

<div id="crossfade" ng-hide="hideCrossfade">

If your header controller and content controller are split up, you will want to use a $broadcast

in your headerController:

$scope.getData = function(mType) {
    $scope.$broadcast('hideCrossfade', true);
};

and in your content controller

var deregisterFn = $scope.$on('hideCrossfade', function($event, hide) {
    $scope.hideCrossfade = hide;
};

来源：https://stackoverflow.com/questions/45151858/is-there-a-way-to-do-a-ng-hide-on-a-html-div

标签

html

angularjs

ng-hide

ng-init