Js gets sample code for uploading file sizes

2020-03-30 02:36:48
OfStack

The code is as follows:
Under ie, it looks like you're going to change the [initialize and execute for ActiveX space marked as a secure executable script] item in the security Settings

 
<html> 
<head> 
<script type="text/javascript"> 
var isIE = /msie/i.test(navigator.userAgent) && !window.opera; 
function fileChange(target) { 

var fileSize = 0; 
if (isIE && !target.files) { 
var filePath = target.value; 
var fileSystem = new ActiveXObject("Scripting.FileSystemObject"); 
var file = fileSystem.GetFile (filePath); 
fileSize = file.Size; 
} else { 
fileSize = target.files[0].size; 
} 
alert( "File byte size : " +fileSize); 
var size = fileSize / 1024; 
if(size>10000){ 
alert(" Attachment must not be greater than 10M"); 


} 

} 
</script> 
</head> 
<body>