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Jquery trigger file input



Am trying to trigger an upload box (browse button) using jquery. But it doesnt seem to work.





$('#fileinput').trigger('click');





Please help. Thank you.



Source: Tips4all

Comments

  1. You can try something like this instead.

    ReplyDelete
  2. I had the same problem.

    But i found out that the security restriction is only when the <input type="file"/> is set to display:none; or is visbilty:hidden.

    So i tried positioning it outside the viewport by setting position:absolute and top:-100px; and voilà it works.

    see http://jsfiddle.net/uPXNQ/

    call it a hack.

    Hope that works for you.

    ReplyDelete
  3. That's on purpose and by design. It's a security issue.

    ReplyDelete
  4. I managed with a simple $(...).click(); with JQuery 1.6.1

    ReplyDelete
  5. this worked for me:

    JS:

    $('#fileinput').trigger('click');


    HTML:

    <div class="hiddenfile">
    <input name="upload" type="file" id="fileinput"/>
    </div>


    CSS:

    .hiddenfile {
    width: 0px;
    height: 0px;
    overflow: hidden;
    }




    >>>Another one that works Cross-Browser:<<<

    The Idea is that you overlay an invisible huge "Browse" button over your custom button.
    So when the user clicks your custom button, he's actually clicking on the "Browse" button of the native input field.

    JS Fiddle: http://jsfiddle.net/5Rh7b/

    HTML:

    <div id="mybutton">
    <input type="file" id="myfile" name="upload"/>
    Click Me!
    </div>


    CSS:

    div#mybutton {

    /* IMPORTANT STUFF */
    overflow: hidden;
    position: relative;

    /* SOME STYLING */
    width: 50px;
    height: 28px;
    border: 1px solid green;
    font-weight: bold
    background: red;
    }

    div#mybutton:hover {
    background: green;
    }

    input#myfile {
    height: 30px;
    cursor: pointer;
    position: absolute;
    top: 0px;
    right: 0px;
    font-size: 100px;
    z-index: 2;

    opacity: 0.0; /* Standard: FF gt 1.5, Opera, Safari */
    filter: alpha(opacity=0); /* IE lt 8 */
    -ms-filter: "alpha(opacity=0)"; /* IE 8 */
    -khtml-opacity: 0.0; /* Safari 1.x */
    -moz-opacity: 0.0; /* FF lt 1.5, Netscape */
    }


    JavaScript:

    $(document).ready(function() {
    $('#myfile').change(function(evt) {
    alert($(this).val());
    });
    });

    ReplyDelete
  6. Try this, it's a hack. the Position:absolute is for Chrome and trigger('change') is for IE.

    var hiddenFile = $("<input type=\"file\" name=\"file\" id=\"file1\" style=\"position:absolute;left:-9999px\" />");
    $('body').append(hiddenFile);

    $('#aPhotoUpload').click(function () {
    hiddenFile.trigger('click');
    if ($.browser.msie)
    hiddenFile.trigger('change');
    });

    hiddenFile.change(function (e) {
    alert('TODO');
    });

    ReplyDelete

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