CODEWITHSUNDEEP
javascriptjqueryhtmlfile-upload
omglolgg
omglolgg

Reputation: 135

How to trigger click on input file element by clicking on another element

I am using jQuery and Ajax on a button, to update the value of attribute "accept" on an input file upload element, then trigger click on it. But I can only do it on Firefox. On Chrome, the trigger click event doesn't work, and on IE8, it works but cannot upload the selected file. What should I do? This is my code in handleAjaxResponseSuccess function:

$('#inputFile').attr('accept', '.jpg, .png');
$('#inputFile').click();
//in Firefox and IE8, it shows a file dialog that allows choosing file to upload. But in Chrome, the file dialog does not appear, and in IE8, the selected file cannot be uploaded

My HTML code

<button type="button" id="uploadBtn" onclick="getAcceptedExtension()"title="Upload" class=""></button>
<input type="file" name="" id="inputFile" multiple="multiple"style="display: none;" >

Upvotes: 3

Views: 8182

Answers (2)

IAintFixingIt
IAintFixingIt

Reputation: 242

one basic and easy way would be this:

$('#b1').on('click',function(){
    alert("button #1 is clicked");
    $('#b2').click();
});
$('#b2').on('click',function(){
    alert("button #2 is clicked");
});

Jsfiddle: https://jsfiddle.net/vf65pzhj/1/

Upvotes: 2

Edson Henrique
Edson Henrique

Reputation: 36

For the security reasons some browsers don't allow to trigger file input directly. The action to open the dialog box MUST be called by a user interaction (a click for instance) AND the input file MUST be visible (display != none) and focused.

You can show to open dialog and after hide like this:

getAcceptedExtension = function() {
  $('#inputFile').attr('accept', '.jpg, .png');
  $('#inputFile').show();
  $('#inputFile').focus();
  $('#inputFile').click();
  $('#inputFile').hide();
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<button type="button" id="uploadBtn" onclick="getAcceptedExtension()"title="Upload" class="">CLICK ME</button>
<input type="file" name="" id="inputFile" multiple="multiple"style="display: none;" >

Upvotes: 2

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