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Introduction:

Here I will explain how to validate uploaded file extension in file upload control using jQuery in asp.net.

Description:

In previous article I explained jQuery fixed header notification bar example, jQuery Convert uppercase to lowercase, jQuery disable specific dates in calendar control and many articles relating to jQuery. Now I will explain how to validate uploaded file extension in file upload control using jQuery in asp.net.

To validate uploaded file extension in file upload control we need to write the following code your page


<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>validate fileupload control using jquery</title>
<script src="http://code.jquery.com/jquery-1.8.2.js"></script>
<script type="text/javascript">
$(function() {
$('#<%=fileupload1.ClientID %>').change(function() {
var fileExtension = ['jpeg', 'jpg', 'png', 'gif', 'bmp'];
if ($.inArray($(this).val().split('.').pop().toLowerCase(), fileExtension) == -1) {
alert("Only '.jpeg','.jpg', '.png', '.gif', '.bmp' formats are allowed.");
}
})
})
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<table><tr>
<td><b>Upload Images:</b></td>
<td><asp:FileUpload ID="fileupload1" runat="server" /></td>
</tr>
</table>
</div>
</form>
</body>
</html>
LiveDemo

Try to upload any document other than '.jpeg','.jpg', '.png', '.gif', '.bmp' extension then you will get alert message

Upload Images:

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7 comments :

navya said...

its very nice code help lot thanks keep it up...

shanti said...

this code is very help full thank you.....

Anonymous said...

It's not working when i upload text file or pdf file please check.

Anonymous said...

what is regex for uploding image

Anonymous said...

Thanks for the code it is very helpfull... :-)

Nadeem Khan said...

what is upload file with anyfile.exe.png? will it work

Ashish arora said...

explain the above code

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