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ng-click not working from dynamically generated HTML

Posted by: admin November 30, 2017 Leave a comment

Questions:

HTML

<table data-ng-table="tableParams" class="table table-bordered table-hover " style="border-collapse:collapse" data-ng-init="host.editSave = false" >
    <tr id="newTransaction">
    </tr>
    <tr data-ng-repeat="host in hosts|filter:search:strict" >
       <td class="hostTableCols" data-ng-hide="host.editSave">{{host.hostCd}}</td>
       <td class="hostTableCols" data-ng-hide="host.editSave">{{host.hostName}}</td>
    </tr>
</table>

Jquery

$('#newTransaction').append(
 '<td contenteditable><input type="text" class="editBox" value=""/></td>'+ 
 '<td contenteditable><input type="text" class="editBox" value=""/></td>'+
 '<td>'+
    '<span>'+
        '<button id="createHost" class="btn btn-mini btn-success" data-ng-click="create()"><b>Create</b></button>'+
    '</span>'+
 '</td>'
);

Angular Script

$scope.create = function() {
       alert("Hi");
    };

Here the function called in the controller part of the AngularJS is not getting trigger from the ng-click event. The Html is getting appended successfully, but the ng-click is not working. Tell me solutions to make it work

Answers:

Not a perfect fix, still!!! – just to show how dynamic compilation can be done

app.controller('AppController', function ($scope, $compile) {

    var $el = $('<td contenteditable><input type="text" class="editBox" value=""/></td>' +
        '<td contenteditable><input type="text" class="editBox" value=""/></td>' +
        '<td>' +
        '<span>' +
        '<button id="createHost" class="btn btn-mini btn-success" data-ng-click="create()"><b>Create</b></button>' +
        '</span>' +
        '</td>').appendTo('#newTransaction');
    $compile($el)($scope);

    $scope.create = function(){
        console.log('clicked')
    }
})

Demo: Fiddle

Don’t use controller for dom manipulation – it has to be done with the help of directives

Questions:
Answers:

To make ng-click to work we need to compile this source by using $compile service. Angular should know about new generated HTML and therefore this HTML should be included to digest cycle in order to trigger ng-click and other events.

See Fiddle

Create “compilator”:

.directive( 'compileData', function ( $compile ) {
  return {
    scope: true,
    link: function ( scope, element, attrs ) {

      var elmnt;

      attrs.$observe( 'template', function ( myTemplate ) {
        if ( angular.isDefined( myTemplate ) ) {
          // compile the provided template against the current scope
          elmnt = $compile( myTemplate )( scope );

            element.html(""); // dummy "clear"

          element.append( elmnt );
        }
      });
    }
  };
});

after, create dummy factory that simulates your append:

.factory( 'tempService', function () {
  return function () { 
    return '<td contenteditable><input type="text" class="editBox" value=""/></td>'+ 
            '<td contenteditable><input type="text" class="editBox" value=""/></td>'+
             '<td>'+
                '<span>'+
         '<button id="createHost" class="btn btn-mini btn-success" data-ng-click="create()"><b>Create</b></button>'+
              '</span>'+
            '</td>';
  };
});

And finally call it like:

<div compile-data template="{{mainPage}}"></div> 

in Controller:

$scope.newTransaction= tempService();

For your example should be something like:

<table data-ng-table="tableParams" class="table table-bordered table-hover " style="border-collapse:collapse" data-ng-init="host.editSave = false" >
    <tr compile-data template="{{newTransaction}}">
    </tr>
    <tr data-ng-repeat="host in hosts|filter:search:strict" >
       <td class="hostTableCols" data-ng-hide="host.editSave">{{host.hostCd}}</td>
       <td class="hostTableCols" data-ng-hide="host.editSave">{{host.hostName}}</td>
    </tr>
</table>

BTW, for now you can use the same directive over your code and compile any dynamic HTML.

Questions:
Answers:

you can use angular.element(this).scope() without use of ng-click

and change

'<button id="createHost" class="btn btn-mini btn-success" data-ng-click="create()"><b>Create</b></button>'

To

'<button id="createHost" class="btn btn-mini btn-success" onclick="angular.element(this).scope().create()"><b>Create</b></button>'
is good

Questions:
Answers:

I needed to have Cordova open the dynamic link in a new window, so my solution was to put the ng-click on the parent element and look at the event.target to see what was clicked on:

<p ng-bind-html="foo.barhtml" ng-click="generalClick($event)"></p>

then

.controller('FooCtrl', function ($scope) {
    var html = '<a href="http://www.google.com">google.com</a>';

    $scope.foo.barhtml = html.replace(/href/g, 'data-href');

    $scope.generalClick = function(event){
        // have Cordova open the link in a browser window
        window.open(event.target.attributes['data-href'].value, '_system');
    }
})

Questions:
Answers:

you need to add $compile service here, that will bind the angular directives like ng-click to your controller scope.Something like:

var divTemplate = '..your div template';
var temp = $compile(divTemplate)($scope); 

Then append it to the HTML:

angular.element(document.getElementById('foo')).append(temp);

You can also bind the event to the div as following:

var div = angular.element("divID");
div.bind('click', $scope.addPhoto());