我想用JS获取待上传文件的大小，
var image = new Image();
image.dynsrc = src;
alert(image.fileSize);
但IE8下提示dynsrc属性拒绝访问，请问如何解决，有没有别的方法啊？
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- C# code
using System;using System.Collections.Generic;using System.Linq;using System.Net;using System.Windows;using System.Windows.Controls;using System.Windows.Documents;using System.Windows.Input;using System.Windows.Media;using System.Windows.Media.Animation;using System.Windows.Shapes;namespace SilverlightApplication1{ public partial class MainPage : UserControl { public MainPage() { InitializeComponent(); } private void button1_Click(object sender, RoutedEventArgs e) { OpenFileDialog openFileDialog1 = new OpenFileDialog(); openFileDialog1.Filter = "All files (*.*)|*.*"; openFileDialog1.Multiselect = false; bool? userClickedOK = openFileDialog1.ShowDialog(); if (userClickedOK == true) { System.IO.Stream fileStream = openFileDialog1.File.OpenRead(); MessageBox.Show(fileStream.Length.ToString()); fileStream.Close(); } openFileDialog1 = null; } }}
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Flash上传限制文件大小
http://demo.swfupload.org/Documentation/
File API得到文件大小
http://dotnet.aspx.cc/article/facbb9a7-c9c6-46ad-9591-5ba34ae27e58/read.aspx