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javascriptangularjs
user1477955
user1477955

Reputation: 1670

Angular js - Show message if ng-repeat is empty

The following AngularJS application is working with ng-repeat and an applied filter. A certain applied filter leaves no values left. How can I display a notification?

js fiddle

HTML

<div >
<div data-ng-controller="myCtrl">


    <ul >
        <li data-ng-repeat="item in values | filter:filterIds()"> 
            <code>#{{item.id}}</code> Item
        </li>
    </ul>

    <p ng-show="!values.length">no vals with this filter</p>
    <button ng-click="loadNewFilter()"> filter now</button>
</div>


</div>

AngularJS

var app = angular.module('m', []);

app.controller('myCtrl', function ($scope) {
$scope.values = [{
    id: 1
}, ....
}];

$scope.filter = [1,2,3,4,5,6];

$scope.filterIds = function (ids) {
        return function (item) {
            var filter = $scope.filter;

                 return filter.indexOf(item.id) !== -1;         
        }
 }

$scope.loadNewFilter = function (){
    $scope.filter = [-1];
    $scope.$apply();
}

});

Upvotes: 27

Views: 43553

Answers (7)

Rajamohan Anguchamy
Rajamohan Anguchamy

Reputation: 1736

I think this is what you want: 

var app = angular.module('myApp', []);    
app.controller('myCtrl', function ($scope) {
  $scope.values = [
    {id: 1}, 
    {id: 2}, 
    {id: 3}, 
    {id: 4}, 
    {id: 5}, 
    {id: 6}];
    
  $scope.filter = [1,2,3,4,5,6];
        
  $scope.filterIds = function (ids) {
    return function (item) {
      var filter = $scope.filter; 
      return filter.indexOf(item.id) !== -1;       	
    }
  }
        
  $scope.loadNewFilter = function (){
    $scope.filter = [1,5];    
  }                 
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="myApp">
  <div data-ng-controller="myCtrl">               
    <ul>
      <li data-ng-repeat="item in testValue=(values | filter:filterIds())"> 
        <code>#{{item.id}}</code> Item
      </li>
    </ul>           
    <p ng-show="!testValue.length">no vals with this filter</p>
    <button ng-click="loadNewFilter()"> filter now</button>
  </div>
</div>

FIDDLE LINK

This is Another one FIDDLE LINK check this also

Upvotes: 40

LukitaBrands
LukitaBrands

Reputation: 21

You can use ng-switch to do this.

For example:

`    <div ng-app ng-controller="friendsCtrl">
    <label>Search: </label><input ng-model="searchText" type="text">
    <div ng-init="filtered = (friends | filter:searchText)">
    <h3>'Found '{{(friends | filter:searchText).length}} friends</h3>
    <div ng-switch="(friends | filter:searchText).length">
      <span class="ng-empty" ng-switch-when="0">No friends</span>
      <table ng-switch-default>
        <thead>
          <tr>
            <th>Name</th>
            <th>Phone</th>
          </tr>
        </thead>
        <tbody>
          <tr ng-repeat="friend in friends | filter:searchText">
            <td>{{friend.name}}</td>
            <td>{{friend.phone}}</td>
          </tr>
        </tbody>
      </table>
     </div>`

Upvotes: 0

Sijan Gurung
Sijan Gurung

Reputation: 797

I recently faced the same kind of problems.. I had three filters and one orderBy in the ng-repeat and wanted to show some emptyList Messages....
The above solutions didnot work..so I made one out of my own.

  • Made the emptymsg as background div and the mainContainer as top div..
  • The emptyMsg div will always be shown, so whenever there is no value in list.. the emptyMsg will be the only div showing. PS: the code snippet wont run..because the additional libraries are not added.. This is just to give you an idea! 
    //empty msg....
.emptyMsg{
    position: absolute;
    left: 0;right: 0;
    margin: auto;
    color: gray;
    text-align: center;
    font-size:3.0em;
    z-index: 0;
}
.activityItem {
    margin: 0px !important;
    padding: 0px !important;
    border: 0px !important;
}
.mainContainer {
    z-index: 999;
    width: 100%;
    height: 40px;
    left: 0px;
    margin-top: 10px;
    display: inline-block;
}
    <h4>List of Activities</h4>
        <ion-list>
           <div class="emptyMsg">No Activities found!</div>
            <div class="item activityItem" ng-repeat="activity in activities | orderBy:field1Order:order.reverse1 | filter:importanceFilter | filter:motiveFilter track by $index">
                   <div class="mainContainer">

                            <div class="divBar">{{activity.energy}}%</div>
                   
                </div>
            </div>
            
        </ion-list>

Upvotes: 0

Vamsi
Vamsi

Reputation: 9780

Here's working example: http://jsfiddle.net/z9daLbLm/2/

You can save the result of the filter in ng-repeat

<div ng-repeat="item in filteredValues = (values | filter:filterIds())">{{item}}</div>

The result is stored in filteredValues Then use this filtered values in the DOM

<div ng-show="!filteredValues.length">No Items</div>

Upvotes: 8

Glogo
Glogo

Reputation: 2884

See this working jsfiddle: http://jsfiddle.net/z9daLbLm/4/ I added this code before your <ul> list

<div ng-if="(values|filter:filterIds()).length == 0">
    List is empty
</div>

It just shows "List is empty" text when your filtered values length is zero.

For more information refer to this link: How to display length of filtered ng-repeat data

Upvotes: 2

dfsq
dfsq

Reputation: 193261

I would go with very simple CSS approach:

HTML:

<ul>
    <li data-ng-repeat="item in values | filter:filterIds()"> <code>#{{item.id}}</code> Item</li>
    <li class="no-items">There are no matching items.</li>
</ul>

CSS:

li + .no-items {
    display: none;
}

So basically li.no-items is only visible if there are no other LI's and hidden otherwise. I think this is better for performance than introducing one more watcher with ngShow/ngHide.

Demo: http://jsfiddle.net/z9daLbLm/5/

Upvotes: 29

sylwester
sylwester

Reputation: 16498

Please see here http://jsfiddle.net/ntofav3c/

change this:

<p ng-show="!values.length">no vals with this filter</p>

to:

 <p ng-hide="values | filter:filterIds()">no vals with this filter</p>

Upvotes: 2

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