Validating Image / File size on FileUpload before uploading file/ image using Java script
In this article, we are solving the problem
regarding the upload image / file size before file upload. We are Validating
Image / File size on FileUpload before uploading file/ image using Java script
Source Code:-
<%@
Page Language="C#" AutoEventWireup="true" CodeFile="sizevaildation.aspx.cs" Inherits="sizevaildation"
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>File size
validation using JavaScript</title>
<script type="text/javascript">
function
validatefileuploadersize() {
var
uploadControl = document.getElementById('<%=
FileUpload1.ClientID %>');
if
(uploadControl.files[0].size > 1048576) {
document.getElementById('DvErrorMsg').style.display = "block";
return
false;
}
else
{
document.getElementById('DvErrorMsg').style.display = "none";
return
true;
}
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div align="center">
<fieldset style="width: 350px;">
<legend>File Size
Validation </legend>
<asp:FileUpload ID="FileUpload1" runat="server" onchange="validatefileuploadersize();" />
<div id="DvErrorMsg" style="background-color: Red; color: White; width: 290px; padding: 3px;
display:
none;">
Please Choose file size less
than size 1 MB
</div>
</fieldset>
</div>
</form>
</body>
</html>
Out Put:-
Validating Image / File size on FileUpload before uploading file/ image using Java script
Reviewed by NEERAJ SRIVASTAVA
on
9:36:00 PM
Rating:
Reviewed by NEERAJ SRIVASTAVA
on
9:36:00 PM
Rating:
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