我不知道为什么,但我的处理程序没有被触发。(顺便说一下,我对 Silverlight 还是很陌生。)我正在关注这里的教程。我不确定我做错了什么......谢谢。[使用 Silverlight 3.0,VS2008]
主页.xaml
<UserControl x:Class="MultiSelectFileUploader.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d" d:DesignWidth="640" d:DesignHeight="480">
<Grid x:Name="LayoutRoot">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<TextBox x:Name="tbUL" Grid.Row="0" Width="150" Margin="0 0 250 0"></TextBox>
<Button x:Name="btnUL" Grid.Row="0" Width="100" Click="btnUL_Click"></Button>
<ListBox Grid.Row="1" Width="200" Height="25" Margin="0 0 200 0"></ListBox>
<Button Grid.Row="1" Width="50" Margin="50 0 0 0"></Button>
<TextBox Grid.Row="2" Width="125" Margin="0 0 275 0"></TextBox>
<TextBox Grid.Row="2" Width="125" Margin="0 0 25 0"></TextBox>
</Grid>
</UserControl>
MainPage.xaml.cs
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;
using System.IO;
namespace MultiSelectFileUploader
{
public partial class MainPage : UserControl
{
public MainPage()
{
InitializeComponent();
btnUL.Content = "Upload";
}
protected void btnUL_Click(object sender, EventArgs e)
{
OpenFileDialog ofd = new OpenFileDialog() { Multiselect = false };
if ((bool)ofd.ShowDialog()) // If a file is selected
{
UploadFile(ofd.File.Name, ofd.File.OpenRead());
}
}
private void UploadFile(string FileName, Stream Data)
{
UriBuilder ub = new UriBuilder("http://localhost:64168/Receiver.ashx");
ub.Query = string.Format("filename={0}", FileName);
WebClient wc = new WebClient();
wc.OpenReadCompleted += (sender, e) =>
{
PushData(Data, e.Result);
e.Result.Close();
Data.Close();
};
wc.OpenWriteAsync(ub.Uri);
}
private void PushData(Stream Input, Stream Output)
{
byte[] buffer = new byte[4096];
int bytesRead;
while((bytesRead = Input.Read(buffer, 0, buffer.Length)) != 0)
Output.Write(buffer, 0, bytesRead);
}
}
}
接收器.ashx
<%@ WebHandler Language="C#" CodeBehind="Receiver.ashx.cs" Class="MultiSelectFileUploader.Web.Receiver" %>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.IO;
public class Receiver : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
string filename = context.Request.QueryString["filename"].ToString();
using (FileStream fs = File.Create(context.Server.MapPath("~/Temp/" + filename)))
{
SaveFile(context.Request.InputStream, fs);
}
}
private void SaveFile(Stream Stream, FileStream FS)
{
byte[] buffer = new byte[4096];
int bytesRead;
while ((bytesRead = Stream.Read(buffer, 0, buffer.Length)) != 0)
FS.Write(buffer, 0, bytesRead);
}
public bool IsReusable
{
get { return false; }
}
}