How can I trigger the click event of another element in ng-click using angularjs?

Question

I\'m trying to trigger the click event of the element from the button.

Answer 1

I think you are over complicated things a bit. Do you really need to trigger a click on the input from your button ?

I suggest you just apply a proper style to your input and the ngFileSelect directive will do the rest and call your onFileSelect function whenever a file is submitted :

input.file {
    cursor: pointer;
    direction: ltr;
    font-size: 23px;
    margin: 0;
    opacity: 0;
    position: absolute;
    right: 0;
    top: 0;
    transform: translate(-300px, 0px) scale(4);
}

Answer 2

One more directive

html

<btn-file-selector/>

code

.directive('btnFileSelector',[function(){
  return {
    restrict: 'AE', 
    template: '<div></div>', 
    link: function(s,e,a){

      var el = angular.element(e);
      var button = angular.element('<button type="button" class="btn btn-default btn-upload">Add File</button>'); 
      var fileForm = angular.element('<input type="file" style="display:none;"/>'); 

      fileForm.on('change', function(){
         // Actions after the file is selected
         console.log( fileForm[0].files[0].name );
      });

      button.bind('click',function(){
        fileForm.click();
      });     


     el.append(fileForm);
     el.append(button);
    }
  }  
}]); 

Answer 3

best and simple way to use native java Script which is one liner code.

document.querySelector('#id').click();

Just add 'id' to your html element like

<button id="myId1" ng-click="someFunction()"></button>

check condition in javascript code

if(condition) { document.querySelector('#myId1').click(); }

Answer 4

So it was a simple fix. Just had to move the ng-click to a scope click handler:

<input id="upload"
    type="file"
    ng-file-select="onFileSelect($files)"
    style="display: none;">

<button type="button"
    ng-click="clickUpload()">Upload</button>



$scope.clickUpload = function(){
    angular.element('#upload').trigger('click');
};

Answer 5

If your input and button are siblings (and they are in your case OP):

<input id="upload"
    type="file"
    ng-file-select="onFileSelect($files)"
    style="display: none;">

<button type="button" uploadfile>Upload</button>

Use a directive to bind the click of your button to the file input like so:

app.directive('uploadfile', function () {
    return {
      restrict: 'A',
      link: function(scope, element) {

        element.bind('click', function(e) {
            angular.element(e.target).siblings('#upload').trigger('click');
        });
      }
    };
});

Answer 6

If you are getting $scope binding errors make sure you wrap the click event code on a setTimeout Function.

VIEW

<input id="upload"
    type="file"
    ng-file-select="onFileSelect($files)"
    style="display: none;">

<button type="button"
    ng-click="clickUpload()">Upload</button>

CONTROLLER

$scope.clickUpload = function(){
    setTimeout(function () {
      angular.element('#upload').trigger('click');
    }, 0);
};