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jQuery Show (Display) Image Preview before Upload with Demo (Example)

May 19, 2015
Introduction

Here I will explain how to use
jQuery to show or display image preview before upload in asp.net with example or demo or jQuery show image preview before upload with fileupload example in asp.net or preview image before upload using fileupload in asp.net.

Description:
  
In previous article I explained jquery crop image in asp.net using jcrop plugin,
disable right click on image using JQuery, jquery show html content in popup and many articles relating to jQuery, asp.net. Now I will explain how to use jQuery to preview image before upload in asp.net.

To implement this we need to write code as shown below in your aspx page


<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>jQuery Preview Image before upload</title>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.8.2.js"></script>
<script type="text/javascript">
function showimagepreview(input) {
if (input.files && input.files[0]) {
var filerdr = new FileReader();
filerdr.onload = function(e) {
$('#imgprvw').attr('src', e.target.result);
}
filerdr.readAsDataURL(input.files[0]);
}
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<input type="file" name="filUpload" id="filUpload" onchange="showimagepreview(this)" />
</div>
<img id="imgprvw" alt="uploaded image preview"/>
</form>
</body>
</html>
To check live demo upload image and see the image preview

Live Demo



uploaded image preview

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