check file size using javascript before uploading
<html>
<head>
<script>
function A()
{
var oas = n开发者_开发问答ew ActiveXObject("Scripting.FileSystemObject");
var d = document.a.b.value;
var e = oas.getFile(d);
var f = e.size;
alert(f + " bytes");
}
</script>
</head>
<body>
<form name="a">
<input type="file" name="b">
<input type="button" name="c" value="SIZE" onClick="A();">
</form>
</body>
</html>
this code is not working, i click the size button nothing is happen i checked ActiveXObject is not working i am using IE what is the reason for this
Instead of using ActiveXObject try this with jQuery
For the HTML bellow
<input type="file" id="myFile" />
try the following:
//binds to onchange event of your input field
$('#myFile').bind('change', function() {
//this.files[0].size gets the size of your file.
alert(this.files[0].size);
});
See following thread:
How to check file input size with jQuery?
加载中,请稍侯......
精彩评论