How to change the button text of <input type=“f

问题:

<input type=\"file\" value=\"Browse\" name=\"avatar\" id=\"id_avatar\" />

I tried to modify the value, but it\'s not working. How to customize the button text?

回答1:

Use Bootstrap FileStyle, which is used to style the file fields of forms. It is a plugin for a jQuery-based component library called Twitter Bootstrap

Sample usage:

Include:

<script type=\"text/javascript\" src=\"js/bootstrap-filestyle.min.js\"> </script>

Via JavaScript:

$(\":file\").filestyle();

Via data attributes:

<input type=\"file\" class=\"filestyle\" data-classButton=\"btn btn-primary\" data-input=\"false\" data-classIcon=\"icon-plus\" data-buttonText=\"Your label here.\">

回答2:

You can put an image instead, and do it like this:

HTML:

<img src=\"/images/uploadButton.png\" id=\"upfile1\" style=\"cursor:pointer\" />
<input type=\"file\" id=\"file1\"  name=\"file1\" style=\"display:none\" />

JQuery:

$(\"#upfile1\").click(function () {
    $(\"#file1\").trigger(\'click\');
});

CAVEAT: In IE9 and IE10 if you trigger the onClick in a file input via javascript, the form will be flagged as \'dangerous\' and cannot be submitted with javascript, not sure if it can be submitted traditionally.

回答3:

Hide the file input. Create a new input to capture a click event and forward it to the hidden input:

<input type=\"button\" id=\"loadFileXml\" value=\"loadXml\" onclick=\"document.getElementById(\'file\').click();\" />
<input type=\"file\" style=\"display:none;\" id=\"file\" name=\"file\"/>

回答4:

The \"upload file...\" text is pre-defined by the browser and can\'t be changed. The only way to get around this is to use a Flash- or Java-based upload component like swfupload.

回答5:

Works Perfectly on All Browsers Hope it will work for you too.

HTML:
<input type=\"file\" class=\"custom-file-input\">

CSS:

 .custom-file-input::-webkit-file-upload-button {
  visibility: hidden;
}
.custom-file-input::before {
  content: \'Select some files\';
  display: inline-block;
  background: -webkit-linear-gradient(top, #f9f9f9, #e3e3e3);
  border: 1px solid #999;
  border-radius: 3px;
  padding: 5px 8px;
  outline: none;
  white-space: nowrap;
  -webkit-user-select: none;
  cursor: pointer;
  text-shadow: 1px 1px #fff;
  font-weight: 700;
  font-size: 10pt;
}
.custom-file-input:hover::before {
  border-color: black;
}
.custom-file-input:active::before {
  background: -webkit-linear-gradient(top, #e3e3e3, #f9f9f9);
}

Change content: \'Select some files\'; with the text you want within \'\'

IF NOT WORKING WITH firefox then use this instead of input:

<label class=\"custom-file-input\" for=\"Upload\" >
</label>

<input id=\"Upload\" type=\"file\" multiple=\"multiple\" name=\"_photos\" accept=\"image/*\" style=\"visibility: hidden\">

回答6:

<input id=\"uploadFile\" placeholder=\"Choose File\" disabled=\"disabled\" />
<div class=\"fileUpload btn btn-primary\">
    <span>Your name</span>
    <input id=\"uploadBtn\" type=\"file\" class=\"upload\" />
</div>

JS

document.getElementById(\"uploadBtn\").onchange = function () {
    document.getElementById(\"uploadFile\").value = this.value;
 };

more http://geniuscarrier.com/how-to-style-a-html-file-upload-button-in-pure-css/

回答7:

This is a JQuery plugin to change the button text of an input file element.

Example HTML:

<input type=\"file\" id=\"choose-file\" />

Example JS:

$(\'#choose-file\').inputFileText({
    text: \'Select File\'
});

Result:

回答8:

I think this is what you want:

<button style=\"display:block;width:120px; height:30px;\" onclick=\"document.getElementById(\'getFile\').click()\">Your text here</button>


<input type=\'file\' id=\"getFile\" style=\"display:none\"> 

回答9:

EDIT: I see now by the comments that you are asking about the button text, and not the file path. My bad. I\'ll leave my original answer below in case someone else who stumbles upon this question interprets it the way I originally did.

2nd EDIT: I had deleted this answer because I decided that I misunderstood the question and my answer was not relevant. However, comments in another answer indicated that people still wanted to see this answer so I\'m undeleting it.

MY ORIGINAL ANSWER (I thought the OP was asking about the path, not the button text):

This is not a supported feature for security reasons. The Opera web browser used to support this but it was removed. Think about what would be possible if this were supported; You could make a page with a file upload input, pre-populate it with a path to some sensitive file and then auto-submit the form using javascript triggered by the onload event. This would happen too fast for the user to do anything about it.

回答10:

Use <label> for the caption

<form enctype=\'multipart/form-data\' action=\'/uploads.php\' method=post>
<label for=b1>
    <u>Your</u> caption here
<input style=\'width:0px\' type=file name=upfile id=b1
 onchange=\'optionalExtraProcessing(b1.files[0])\'
 accept=\'image/png\'>
</label>
</form>

This works without any javascript. You can decorate the label to any degree of complexity, to your heart\'s content. When you click on the label, the click automatically gets redirected to the file input. The file input itself can be made invisible by any method. If you want the label to appear like a button, there are many solutions, e.g.:

label u {
    -webkit-appearance: button;
    -moz-appearance: button;
    appearance: button;

    text-decoration: none;
    color: initial;
}

回答11:

Simply

<label class=\"btn btn-primary\">
  <i class=\"fa fa-image\"></i> Your text here<input type=\"file\" style=\"display: none;\"  name=\"image\">
</label>

[Edit with snippet]

<link href=\"https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css\" rel=\"stylesheet\"/>
<link href=\"https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css\" rel=\"stylesheet\"/>

<label class=\"btn btn-primary\">
<i class=\"fa fa-image\"></i> Your text here<input type=\"file\" style=\"display: none;\" name=\"image\">
</label>

回答12:

1. Before that <input type=\"file\">, add an image and <input style=\"position:absolute\"> it will occupy the space of <input type=\"file\">

2. Use the following CSS to the file element

   position:relative;  
   opacity:0;  
   z-index:99;
   

回答13:

Only CSS & bootstrap class

        <div class=\"col-md-4 input-group\">
            <input class=\"form-control\" type=\"text\"/>
            <div class=\"input-group-btn\">
                <label for=\"files\" class=\"btn btn-default\">browse</label>
                <input id=\"files\" type=\"file\" class=\"btn btn-default\"  style=\"visibility:hidden;\"/>
            </div>
        </div>

回答14:

if you using rails and have problem apply it, I would like to add some tips from original answer posted by @Fernando Kosh

• Download file zip and copy file bootstrap-filestyle.min.js ke folder app/assets/javascripts/

• open your application.js and add this line below

  //= require bootstrap-filestyle.min

• open your coffee and add this line

  $(\":file\").filestyle({buttonName: \"btn-primary\",buttonBefore: true,buttonText: \" Your text here\",icon: false});

回答15:

This is an alternative solution that may be of help to you. This hides the text that appears out of the button, mixing it with the background-color of the div. Then you can give the div a title you like.

<div style=\"padding:10px;font-weight:bolder; background-color:#446655;color: white;margin-top:10px;width:112px;overflow: hidden;\">
     UPLOAD IMAGE <input style=\"width:100px;color:#446655;display: inline;\" type=\"file\"  />
</div>