Styling The File Upload 'Browse' Button - html

Question

I have an asp.net website which is using Bootstrap and on one page I have a file upload field. Now I know this has been asked may times before but I cant seem to find a solution for asp.net.
Ideally what i'm after is to style the file upload 'Browse' button so it's just a file glyphicon so looking at the Bootstrap site I would like to use something like
What I'm after it looking like (take from Bootstrap website)
<div class="input-group">
<input type="text" class="form-control" placeholder="Username" aria-describedby="basic-addon1">
<span class="input-group-addon" id="basic-addon1">
<i class="glyphicon glyphicon-folder-open"></i>
</span>
</div>
So I would have the input field with the folder icon at the end of it but I can't seem to find a way to do this and was wondering if anyone else could help.
My current code is:
<div class="form-group">
<asp:Label ID="Label3" class="col-md-3 control-label" runat="server" Text="Upload"></asp:Label>
<div class="col-md-3">
<asp:FileUpload ID="fuAttachment" runat="server" class="fileupload"></asp:FileUpload>
</div>
</div>
And my custom CSS is
.fileupload
{
font-family: inherit;
font-size: inherit;
line-height: inherit;
width: 100%;
height: 32px;
pointer-events: none;
}

Answer 1

Jasny Plugin This plugin may help.
/* ===========================================================
* Bootstrap: fileinput.js v3.1.3
* http://jasny.github.com/bootstrap/javascript/#fileinput
* ===========================================================
* Copyright 2012-2014 Arnold Daniels
*
* Licensed under the Apache License, Version 2.0 (the "License")
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ========================================================== */
+ function($) {
"use strict";
var isIE = window.navigator.appName == 'Microsoft Internet Explorer'
// FILEUPLOAD PUBLIC CLASS DEFINITION
// =================================
var Fileinput = function(element, options) {
this.$element = $(element)
this.$input = this.$element.find(':file')
if (this.$input.length === 0) return
this.name = this.$input.attr('name') || options.name
this.$hidden = this.$element.find('input[type=hidden][name="' + this.name + '"]')
if (this.$hidden.length === 0) {
this.$hidden = $('<input type="hidden">').insertBefore(this.$input)
}
this.$preview = this.$element.find('.fileinput-preview')
var height = this.$preview.css('height')
if (this.$preview.css('display') !== 'inline' && height !== '0px' && height !== 'none') {
this.$preview.css('line-height', height)
}
this.original = {
exists: this.$element.hasClass('fileinput-exists'),
preview: this.$preview.html(),
hiddenVal: this.$hidden.val()
}
this.listen()
}
Fileinput.prototype.listen = function() {
this.$input.on('change.bs.fileinput', $.proxy(this.change, this))
$(this.$input[0].form).on('reset.bs.fileinput', $.proxy(this.reset, this))
this.$element.find('[data-trigger="fileinput"]').on('click.bs.fileinput', $.proxy(this.trigger, this))
this.$element.find('[data-dismiss="fileinput"]').on('click.bs.fileinput', $.proxy(this.clear, this))
},
Fileinput.prototype.change = function(e) {
var files = e.target.files === undefined ? (e.target && e.target.value ? [{
name: e.target.value.replace(/^.+\\/, '')
}] : []) : e.target.files
e.stopPropagation()
if (files.length === 0) {
this.clear()
return
}
this.$hidden.val('')
this.$hidden.attr('name', '')
this.$input.attr('name', this.name)
var file = files[0]
if (this.$preview.length > 0 && (typeof file.type !== "undefined" ? file.type.match(/^image\/(gif|png|jpeg)$/) : file.name.match(/\.(gif|png|jpe?g)$/i)) && typeof FileReader !== "undefined") {
var reader = new FileReader()
var preview = this.$preview
var element = this.$element
reader.onload = function(re) {
var $img = $('<img>')
$img[0].src = re.target.result
files[0].result = re.target.result
element.find('.fileinput-filename').text(file.name)
// if parent has max-height, using `(max-)height: 100%` on child doesn't take padding and border into account
if (preview.css('max-height') != 'none') $img.css('max-height', parseInt(preview.css('max-height'), 10) - parseInt(preview.css('padding-top'), 10) - parseInt(preview.css('padding-bottom'), 10) - parseInt(preview.css('border-top'), 10) - parseInt(preview.css('border-bottom'), 10))
preview.html($img)
element.addClass('fileinput-exists').removeClass('fileinput-new')
element.trigger('change.bs.fileinput', files)
}
reader.readAsDataURL(file)
} else {
this.$element.find('.fileinput-filename').text(file.name)
this.$preview.text(file.name)
this.$element.addClass('fileinput-exists').removeClass('fileinput-new')
this.$element.trigger('change.bs.fileinput')
}
},
Fileinput.prototype.clear = function(e) {
if (e) e.preventDefault()
this.$hidden.val('')
this.$hidden.attr('name', this.name)
this.$input.attr('name', '')
//ie8+ doesn't support changing the value of input with type=file so clone instead
if (isIE) {
var inputClone = this.$input.clone(true);
this.$input.after(inputClone);
this.$input.remove();
this.$input = inputClone;
} else {
this.$input.val('')
}
this.$preview.html('')
this.$element.find('.fileinput-filename').text('')
this.$element.addClass('fileinput-new').removeClass('fileinput-exists')
if (e !== undefined) {
this.$input.trigger('change')
this.$element.trigger('clear.bs.fileinput')
}
},
Fileinput.prototype.reset = function() {
this.clear()
this.$hidden.val(this.original.hiddenVal)
this.$preview.html(this.original.preview)
this.$element.find('.fileinput-filename').text('')
if (this.original.exists) this.$element.addClass('fileinput-exists').removeClass('fileinput-new')
else this.$element.addClass('fileinput-new').removeClass('fileinput-exists')
this.$element.trigger('reset.bs.fileinput')
},
Fileinput.prototype.trigger = function(e) {
this.$input.trigger('click')
e.preventDefault()
}
// FILEUPLOAD PLUGIN DEFINITION
// ===========================
var old = $.fn.fileinput
$.fn.fileinput = function(options) {
return this.each(function() {
var $this = $(this),
data = $this.data('bs.fileinput')
if (!data) $this.data('bs.fileinput', (data = new Fileinput(this, options)))
if (typeof options == 'string') data[options]()
})
}
$.fn.fileinput.Constructor = Fileinput
// FILEINPUT NO CONFLICT
// ====================
$.fn.fileinput.noConflict = function() {
$.fn.fileinput = old
return this
}
// FILEUPLOAD DATA-API
// ==================
$(document).on('click.fileinput.data-api', '[data-provides="fileinput"]', function(e) {
var $this = $(this)
if ($this.data('bs.fileinput')) return
$this.fileinput($this.data())
var $target = $(e.target).closest('[data-dismiss="fileinput"],[data-trigger="fileinput"]');
if ($target.length > 0) {
e.preventDefault()
$target.trigger('click.bs.fileinput')
}
})
}(window.jQuery);
.form-group .boot-input {
color: transparent;
}
.form-group .boot-input::-webkit-file-upload-button {
visibility: hidden;
}
.form-group .boot-input::before {
content: "\e204";
font-family: 'Glyphicons Halflings';
color: #444;
display: inline-block;
border: none;
border-radius: 2px;
margin: 0;
padding: 0;
outline: transparent;
white-space: nowrap;
-webkit-user-select: none;
cursor: pointer;
font-weight: 700;
font-size: 10pt;
float: right;
}
/*!
* Jasny Bootstrap v3.1.3 (http://jasny.github.io/bootstrap)
* Copyright 2012-2014 Arnold Daniels
* Licensed under Apache-2.0 (https://github.com/jasny/bootstrap/blob/master/LICENSE)
*/
.container-smooth {
max-width: 1170px;
}
#media (min-width: 1px) {
.container-smooth {
width: auto;
}
}
.btn-labeled {
padding-top: 0;
padding-bottom: 0;
}
.btn-label {
position: relative;
left: -12px;
display: inline-block;
padding: 6px 12px;
background: transparent;
background: rgba(0, 0, 0, .15);
border-radius: 3px 0 0 3px;
}
.btn-label.btn-label-right {
right: -12px;
left: auto;
border-radius: 0 3px 3px 0;
}
.btn-lg .btn-label {
left: -16px;
padding: 10px 16px;
border-radius: 5px 0 0 5px;
}
.btn-lg .btn-label.btn-label-right {
right: -16px;
left: auto;
border-radius: 0 5px 5px 0;
}
.btn-sm .btn-label {
left: -10px;
padding: 5px 10px;
border-radius: 2px 0 0 2px;
}
.btn-sm .btn-label.btn-label-right {
right: -10px;
left: auto;
border-radius: 0 2px 2px 0;
}
.btn-xs .btn-label {
left: -5px;
padding: 1px 5px;
border-radius: 2px 0 0 2px;
}
.btn-xs .btn-label.btn-label-right {
right: -5px;
left: auto;
border-radius: 0 2px 2px 0;
}
.btn-file {
position: relative;
overflow: hidden;
vertical-align: middle;
}
.btn-file > input {
position: absolute;
top: 0;
right: 0;
width: 100%;
height: 100%;
margin: 0;
font-size: 23px;
cursor: pointer;
filter: alpha(opacity=0);
opacity: 0;
direction: ltr;
}
.fileinput {
display: inline-block;
margin-bottom: 9px;
}
.fileinput .form-control {
display: inline-block;
padding-top: 7px;
padding-bottom: 5px;
margin-bottom: 0;
vertical-align: middle;
cursor: text;
}
.fileinput .thumbnail {
display: inline-block;
margin-bottom: 5px;
overflow: hidden;
text-align: center;
vertical-align: middle;
}
.fileinput .thumbnail > img {
max-height: 100%;
}
.fileinput .btn {
vertical-align: middle;
}
.fileinput-exists .fileinput-new,
.fileinput-new .fileinput-exists {
display: none;
}
.fileinput-inline .fileinput-controls {
display: inline;
}
.fileinput-filename {
display: inline-block;
overflow: hidden;
vertical-align: middle;
}
.form-control .fileinput-filename {
vertical-align: bottom;
}
.fileinput.input-group {
display: table;
}
.fileinput.input-group > * {
position: relative;
z-index: 2;
}
.fileinput.input-group > .btn-file {
z-index: 1;
}
.fileinput-new.input-group .btn-file,
.fileinput-new .input-group .btn-file {
border-radius: 0 4px 4px 0;
}
.fileinput-new.input-group .btn-file.btn-xs,
.fileinput-new .input-group .btn-file.btn-xs,
.fileinput-new.input-group .btn-file.btn-sm,
.fileinput-new .input-group .btn-file.btn-sm {
border-radius: 0 3px 3px 0;
}
.fileinput-new.input-group .btn-file.btn-lg,
.fileinput-new .input-group .btn-file.btn-lg {
border-radius: 0 6px 6px 0;
}
.form-group.has-warning .fileinput .fileinput-preview {
color: #8a6d3b;
}
.form-group.has-warning .fileinput .thumbnail {
border-color: #faebcc;
}
.form-group.has-error .fileinput .fileinput-preview {
color: #a94442;
}
.form-group.has-error .fileinput .thumbnail {
border-color: #ebccd1;
}
.form-group.has-success .fileinput .fileinput-preview {
color: #3c763d;
}
.form-group.has-success .fileinput .thumbnail {
border-color: #d6e9c6;
}
.input-group-addon:not(:first-child) {
border-left: 0;
}
/*# sourceMappingURL=jasny-bootstrap.css.map */
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet" />
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<div class="container">
<h3>Jasny Plugin (Extracted)</h3>
<div class="fileinput fileinput-new input-group" data-provides="fileinput">
<div class="form-control" data-trigger="fileinput"><i class="glyphicon glyphicon-file fileinput-exists"></i> <span class="fileinput-filename"></span>
</div> <span class="input-group-addon btn btn-default btn-file"><span class="fileinput-new"><span class="glyphicon glyphicon-level-up"></span></span><span class="fileinput-exists">Change</span>
<input type="file" name="...">
</span> Remove
</div>
<hr>
<h3>Standalone CSS</h3>
<div class="form-group">
<input type="file" class="boot-input form-control" />
</div>
</div>

Answer 2

html
<div class="upload">
<input type="file" name="upload"/>
</div>
css
div.upload {
width: 157px;
height: 57px;
background: #ccc;
overflow: hidden;
}
div.upload input {
display: block;
width: 157px;
height: 57px;
opacity: 0;
overflow: hidden;
}

Answer 3

You can try like this: Demo
Used Bootstrap buttons for styling upload button.
.fileUpload {
position: relative;
overflow: hidden;
margin: 10px;
}
.fileUpload input.upload {
position: absolute;
top: 0;
right: 0;
margin: 0;
padding: 0;
font-size: 20px;
cursor: pointer;
opacity: 0;
filter: alpha(opacity=0);
}