I want to show the file name while uploading the file.For that i used the hidden field.
My code is
<label>File</lable>
<input type="image" src="http://upload.wikimedia.org/wikipedia/commons/c/ca/Button-Lightblue.svg" width="30px"/>
<input type="file" id="my_file" style="display: none;" />
javascript is
$("input[type='image']").click(function() {
$("input[id='my_file']").click();
});
How can I do this?
If you just need the filename:
$('#my_file').change(function(){
var filename = $(this).val().split('\\').pop();
});
You can do this:
$("input[type='image']").click(function () {
$("input[id='my_file']").click();
});
$("input[id='my_file']").change(function (e) {
var $this = $(this);
$this.next().html($this.val().split('\\').pop());
});
FIDDLE
Related
I'm working on a project and I need the user to upload only pdf files.
I'm trying to do this in the front-end so whenever the input detects a file type that is not a pdf should reject it. Everything seems correct. However, when I hover over the input it shows me that the wrong file is uploaded. So what should I do?
function changeName(elem) {
$("input[type='file']").
elem.on("change", function() {
var fileName = elem.val().split("\\").pop();
var fileExtension = elem.val().split(".").pop();
if (fileExtension === "pdf") {
elem.siblings(".Syllabus").text(fileName);
} else {
elem.siblings(".Syllabus").val('');
elem.siblings(".Syllabus").text('...');
alert('Only PDF files are accepted');
}
});
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<label class="Syllabus fileReset">...</label>
<input type="file" accept="application/pdf" name="file1" onClick="changeName($(this));" required class="upload-button removable" />
This code works better than what you posted
$("input[type='file']").on("change", function(e) {
var elem = $(this);
elem.siblings(".Syllabus").text("...")
var fileName = elem.val().split("\\").pop();
var fileExtension = elem.val().split(".").pop();
if (fileExtension !== "pdf") {
elem.siblings(".Syllabus").text('Only PDF files are accepted')
elem.replaceWith(elem.val('').clone(true));
}
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<label class="Syllabus fileReset">...</label>
<input type="file" accept="application/pdf" name="file1" required class="upload-button removable" />
I have a little html page where I have a field which is for file upload and a input field which is filled by javascript ajax function on same page:
<div class="input-group>
<label>
<span>Select
<input type="file" name="file" style="display: none;">
</span>
</label>
<input type="text" readonly>
</div>
<script>
$(function() {
$(document).on('change', ':file', function()
{
var input = $(this),
label = input.val().replace(/\\/g, '/').replace(/.*\//, '');
input.trigger('fileselect', [numFiles, label]);
});
$(document).ready( function()
{
$(':file').on('fileselect', function(event, label)
{
var input = $(this).parents('.input-group').find(':text'),
log = label;
if( input.length ) {
input.val(log);
} else {
if( log ) alert(log);
}
});
});
});
</script>
I want to move the script from my index.html to my script.js file but it doesn't work. I guess it has something to do with not knowing things like $(document) and so on. I am not a javascript expert and need a little help with this.
According to this: http://jsfiddle.net/Shiboe/yuK3r/6/ I can do it without any problem.
But,
I have got a multiple attribute in my input element and if i want to upload for example 8000 files catchEvent() function print out 0. Is any solution of this problem?
$(document).ready(function(){
$("#testInput").on('click', function(){
run();
});
function run(){
document.body.onfocus = catchEvent;
}
function catchEvent(){
console.log(document.getElementById("testInput").files.length);
document.body.onfocus = null;
}
})
<input id="testInput" type="file" name="test" multiple="multiple" />
You can get file info as follow code:
godzilla.onchange= function(){
var files = $(this)[0].files;
if (files.length > 0){
console.log("file selected="+files.length);
}
};
I have downloaded JQuery Multiple file uploader from this site
http://www.fyneworks.com/jquery/multiple-file-upload/
I need to check whether the file input field is null or not before submitting the form.
<form onsubmit="return validate();">
<input type="file" name="File" class="multi" />
<input type="file" name="File" class="multi" />
<input type="submit" name="BtnSubmit" value="save" />
</form>
I tried
function validate() {
$(".multi").each(function () {
var multi = $(this).val();
if (multi) {
return true;
} else {
return false;
}
});
}
Not working because the filed is always empty. So is there any other way to achieve this ?
try this
var multi = $(".multi").val();
if (multi) {
console.log("multi");
} else {
console.log("no multi");
}
fiddle:
http://jsfiddle.net/w4qVv/
UPDATE:
or you can do it like this
function validate(field) {
var fieldVal = $(field).val();
if(!fieldVal) alert("No files selected");
}
and then:
validate(".multi");
fiddle:
http://jsfiddle.net/jk8aZ/
UPDATE2:
yep, you can use each like this
var multi = (".multi");
$(multi).each(function () {
validate(this);
});
fiddle:
http://jsfiddle.net/jk8aZ/1/
JSP:
----
<div ID="items">
input id="file5" type="file" path="files" name="files" size="40" /> Other documents
</div>
Javascript:
-----------
<script type="text/javascript">
var items=1;
function AddItem() {
var div=document.getElementById("items");
var button=document.getElementById("add");
items++;
newitem="";
newitem+="<input type=\"file\" path=\"files\" name=\"files\"";// + items;
newitem+="\"id=file"+items;
newitem+="\" size=\"40\"> Other documents";
newitem+=" <input type=\"button\" class=\"button\" id=\"delButton"+items;
newitem+="\" value=\"\" name=\"button"+items;
newitem+="\" onclick=deletethisRow("+items+")>";
newnode=document.createElement("div");
newnode.setAttribute("id","child"+items);
newnode.innerHTML=newitem;
div.insertBefore(newnode,button);
}
function deletethisRow(obj){
var fileElement=document.getElementById("file"+obj);
var buttonElement=document.getElementById("delButton"+obj);
var childDivName="child"+obj;
if (buttonElement) {
var child = document.getElementById(childDivName);
var parent = document.getElementById("items");
parent.removeChild(child);
}
}
</script>
---
Above is the JSP code as well as JavaScript snippets.. I'm trying to validate the input files....
I want to allow only jpg,png,pdf,doc,docx file types to be upload??
Any thoughts on how to achieve this?
Thanks and regards,
Satish Krishnamurthy
You can change your input tag:
<input type="file" name="pic" id="pic" accept=".someext, image/gif, image/jpeg" />
But please don't rely on client-side validation. Check it server-side or people can disable the client-side checks and upload even executable scripts.
function Checkfilesextension()
{
var fileToupload = document.getElementById('elementId');
var fileName = fileToupload .value;
var ext = fileName.substring(fileName.lastIndexOf('.') + 1);
ext.toLowerCase
if(ext =="GIF" || other extension) // add other extensions
{
return true;
}
else
{
alert("Upload only the allowed files");
return false;
}
}
This would check for the extension of the files....have not tested the code though