ChatGPT解决这个技术问题 Extra ChatGPT

How to change the button text of <input type="file" />?

<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?

Are you talking about the filename or the button text?
possible duplicate of How to rename HTML "browse" button?
There are pseudo elements like ::file-selector-button now. Maybe these can be used somehow.

s
silver est

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.">

Doesn't seem to be working for me. It still shows the brorser's default buttons. Also, the demo at github.com/markusslima/bootstrap-filestyle.git doesn't work either - all examples show the default buttons. Am I missing something?
@Tony Uhh.... what makes you think Bootstrap isn't using the "wacky hack" underneath as well? :-)
Throwing a javascript library (with a plugin!) on such a small problem is an inelegant overkill.
Downvoted. It is not even an answer, only a workaround that needs an extra library. The answer should intend to change the rendering behaviour for browsers.
Change data-buttonText to data-text :) Working now.
2
2540625

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"/>

throwing in an HTA file with ie7 mode I had to remove the ; at the end.
great, don't want to include bootstrap just to change two words of text, but how would you do it if the file-input was created dynamically?
@asparism use JavaScript to manipulate the DOM, hide it by setting it's style and use before() and add the new input element?
@MushyPeas it is the easiest way. tried to play with css but this solution is much faster and easier. thanks
This was the easiest way for me, too! It also allowed me to STYLE the 'mock' file-button as one of a set of other form-button options - without having to worry about displaying the odd-looking "Browse" file-button.
C
Charlie74

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.


This is a clever solution. Couldn't you also do this with a
@Code Commander -Thanks, and yes, you can do it with every element you want, but the most common is the element. Just get rid of the button+text field of the "file input"...
Just a heads up to anyone using the above, some mobile browsers disable triggering file input clicks programmatically. Specifically, android 4 for the Galaxy S III
I am using <input type="file" inside asp.net gridview row, whose rows can be added dynamically.. so it will be a real pain in the head to call the relevant input click trigger (of the same row) while clicking on an image! :/
your solution doesnt work. You prolly didn't set border, margin, padding and background-color or or else it would be obvious
P
Pekka

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.


Can you prove it that it can't be changed?
Or by browsing the browsers' source codes, at least for the Open Source ones.
This could by the answer (to another question, something like "Why is the content of value, 'VALUE="C:\someFile.txt"' for an input field of type file, 'TYPE="FILE"', ignored by the browser?"): stackoverflow.com/questions/1342039
C
Code Black

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">

Works on Safari, though
Its working perfectly at my end on my FF 41.0.2.You are running in to cross browser compatibility issue please refer to CSS BOX MODEL to minify the issue.
The problem is probably that FF is built on Gecko, not webkit. (my best guess)
OK, Thanks! Check out this JSFiddle. If you edit your answer with that, I think it's worthy of an upvote :)
K
Ken Karlo

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]


I like your solution answer but, how do I change the label text after select a picture?
C
Chit

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"> 

This did the job.. Thanks
d
datchung

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:

https://i.stack.imgur.com/grm5m.png


Not a great solution for 'multiple' files. Does not show more than one file.
I
Igor Ivancha
<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/


M
MKaama

Use

<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;
}

a
actuallyakash

I know, nobody asked for it but if anybody is using bootstrap, it can be changed through Label and CSS Pseudo-selector.

For changing button text:

.custom-file-label::after {
  content: "What's up?";
}

For changing field text:

<label class="custom-file-label" for="upload">Drop it like it's hot</label>

Here's a fiddle.


i
isherwood

Only CSS & bootstrap class


A
Amirhossein Mehrvarzi

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.


i
isherwood

In Bootstrap +4.5 you can simply add this to your code:

.custom-file-input~.custom-file-label::after { content: "Your custom text ..."; }


T
Toby Speight

Before that , add an image and it will occupy the space of Use the following CSS to the file element position:relative; opacity:0; z-index:99;


U
Udara Kasun

You can simply add some css trick. you don't need javascript or more input files and i keep existing value attribute. you need to add only css. you can try this solution.

.btn-file-upload{ width: 187px; position:relative; } .btn-file-upload:after{ content: attr(value); position: absolute; top: 0; left: 0; bottom: 0; width: 48%; background: #795548; color: white; border-radius: 2px; text-align: center; font-size: 12px; line-height: 2; }


W
Wai Ha Lee

Here is a way to "change" the text of an input with file type, with pure HTML and javascript:

<input id='browse' type='file' style='width:0px'>
<button id='browser' onclick='browse.click()'>
    *The text you want*
</button>

B
Boris Ch.F

for me it does not work the custom text with bootstrap-filestyle. It help with button decoration but text its weird to be changed, before get into wrestling with css i try the following :

$( document ).ready(function() {
   $('.buttonText').html('Seleccione ficheros');
});

bootstrap-filestyle render the component as span with a class named butonText, so when document load just change the text. easy right and it must work on all browsers.

cheers


m
monty.py

In Addition to MushyPeas answer, you can add a label to show the filename like so (no jQuery needed):
Credits also to this answer.


w
widjajayd

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});


K
Khapi

I did it like this for my project:

.btn-outlined.btn-primary { color: #000; } .btn-outlined.btn-primary:active, .btn-outlined.btn-positive:active, .btn-outlined.btn-negative:active { color:#000; } .btn-block { display: block; width: 100%; padding: 15px 0; margin-bottom: 10px; font-size: 18px; font-family: Arial, Helvetica, sans-serif; text-align: center; }


K
Kaiido

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>

In Chrome 39 I see both the UPLOAD IMAGE text and the button. Perhaps chrome's handling of file inputs has changed since you posted this?
@yan-bellavance what are you doing? If you think an answer is incorrect or not helpful, downvote, but in no way deface it!