Concealing specific elements in Angular by utilizing ng-class conditions

Here's the code snippet I am currently working with:

<tr ng-repeat="version in allVersions" ng-class="{{ version['active'] == 'true' ? 'active' : 'inactive' }}">
 </tr>

The ng-class is functioning as expected based on the object provided. The output is as desired.

However, my goal is to have the ng-class value of inactive hidden initially. Upon clicking a button, it should toggle visibility - displaying only active fields when clicked again. Essentially, I want a toggle functionality for this.

I attempted the following:

<tr ng-repeat="version in allVersions" ng-class="{{ version['active'] == 'true' ? 'active' : 'inactive' }}" ng-show="version['active'] == 'true'">
     </tr>

While this displays only active elements, I am unsure how to proceed with showing inactive upon button click.

The state of inactive should remain constant. Clicking a button labeled showall will display it, while clicking the active button will hide it, leaving only active elements visible.

As a newcomer to Angular, I'm seeking guidance on an easier approach to achieve this functionality. Any suggestions would be greatly appreciated.

Thank you in advance.

javascriptangularjs

Answer №1

To make this work, you need to follow these steps. First, in the controller, define a status property:

$scope.status = {
    active: true
};

Next, in your HTML code, add the following snippet:

<tr ng-repeat="version in allVersions | filter:status" ng-class="[version.active ? 'active' : 'inactive']">

For the "Show All" and "Active" buttons, use the following configuration:

<button ng-click="status = null">Show all</button>
<button ng-click="status = {active: true}">Active</button>
<button ng-click="status = {active: false}">Inactive</button>

Check out the live demo here: http://plnkr.co/edit/BjiLYjPJG8yPBH1ysf7p?p=preview

Answer №2

Substitute 

ng-show="version['active'] == 'true'"

with 

ng-show="show(version['active'])"

and insert this into your controller. Assuming your function showall() assigns a model variable $scope.showAll to true for "show all" and false otherwise.

$scope.show = function(active) {
    return $scope.showAll || active;
}

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