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jQuery trigger file input

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梦如初夏
梦如初夏 2020-11-22 08:49

Am trying to trigger an upload box (browse button) using jQuery.
The method I have tried now is: 

$(\'#fileinput\').trigger(\'click\');
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21条回答
  • 隐瞒了意图╮
    2020-11-22 09:23

    Check out my fiddle.

    http://jsfiddle.net/mohany2712/vaw8k/

    .uploadFile {
  visibility: hidden;
}

#uploadIcon {
  cursor: pointer;
}
    <body>
  <div class="uploadBox">
    <label for="uploadFile" id="uploadIcon">
      <img src="http://upload.wikimedia.org/wikipedia/commons/thumb/3/34/Icon_-_upload_photo_2.svg/512px-Icon_-_upload_photo_2.svg.png"  width="20px" height="20px"/>
    </label>
    <input type="file" value="upload" id="uploadFile" class="uploadFile" />
  </div>
</body>

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  • 借酒劲吻你
    2020-11-22 09:26

    Correct code:

    <style>
    .upload input[type='file']{
        position: absolute;
        float: left;
        opacity: 0; /* For IE8 "Keep the IE opacity settings in this order for max compatibility" */
        -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=0)"; /* For IE5 - 7 */
        filter: alpha(opacity=0);
        width: 100px; height: 30px; z-index: 51
    }
    .upload input[type='button']{
        width: 100px;
        height: 30px;
        z-index: 50;
    }
    .upload input[type='submit']{
        display: none;
    }
    .upload{
        width: 100px; height: 30px
    }
</style>
<div class="upload">
    <input type='file' ID="flArquivo" onchange="upload();" />
    <input type="button" value="Selecionar" onchange="open();" />
    <input type='submit' ID="btnEnviarImagem"  />
</div>

<script type="text/javascript">
    function open() {
        $('#flArquivo').click();
    }
    function upload() {
        $('#btnEnviarImagem').click();
    }
</script>
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  • 感动是毒
    2020-11-22 09:26

    i had problems with custom client side validation for <input type="file"/> while using a fake button to trigger it and @Guillaume Bodi's solution worked for me (also with opacity: 0; on chrome) 

    $("#MyForm").on("click", "#fake-button", function () {
        $("#uploadInput").focus().trigger("click");
    });

    and css style for upload input 

    #uploadInput {
opacity: 0.0; 
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;
}
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