silverlight中HttpResponse,该如何解决

silverlight中HttpResponse
我要写一个单击按钮，提示一个提示框，上面有保存和打开，代码如下

 HttpResponse Response = HttpContext.Current.Response;

            Response.ContentType = "application/soap+msbin1";
            //通知浏览器下载文件
            Response.AddHeader("Content-Disposition", "attachment; filename=" + HttpUtility.UrlEncode("Excel文件", System.Text.Encoding.UTF8));
            Response.BinaryWrite(bytes);
            Response.Flush();
            Response.End();


为什么不对啊，老是提示错误，求指点
[解决办法]
Silverlight是客户端的，不是服务器端的，没有Response.AddHeader

Response.AddHeader需要写到服务器端的asp.net中
[解决办法]
不明白你要干什么
你可以使用SaveFileDialog 
http://www.silverlightshow.net/items/Using-the-SaveFileDialog-in-Silverlight-3.aspx


代码

<UserControl x:Class="FileSaveDialogDemo.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">  
    <Canvas x:Name="LayoutRoot" Background="White">  
        <Button x:Name="btnSaveFile" Width="100" Height="20" 
                Content="Save File" Click="btnSaveFile_Click" 
                Canvas.Top="10" Canvas.Left="10"></Button> 
        <TextBlock x:Name="tblError" Canvas.Top="40" Canvas.Left="10"></TextBlock> 
    </Canvas> 
</UserControl> 

using System;  
using System.IO;
using System.Windows;  
using System.Windows.Controls;  
using FileSaveDialogDemo.FilesServiceReference;  
 
namespace FileSaveDialogDemo  
{  
    public partial class MainPage : UserControl  
    {
        #region Fields  
        private SaveFileDialog dialog;
        #endregion  
 
        #region Constructors  
        public MainPage()  
        {  
            InitializeComponent();  
 
            this.dialog = new SaveFileDialog();   
 
 
            try 
            {  
                this.dialog.DefaultExt = ".txt";  
                this.dialog.Filter = "Text Files
[解决办法]
*.txt
[解决办法]
Log Files
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*.log
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All Files
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*.*";  
                this.dialog.FilterIndex = 2;  
            }  
            catch ( Exception ex )  
            {  
                this.tblError.Text = "Error configuring SaveFileDialog: " + ex.Message;  
            }  
        }
        #endregion  
 
        #region Handlers  
        private void btnSaveFile_Click( object sender, RoutedEventArgs e )  
        {  
            bool? dialogResult = this.dialog.ShowDialog();  
 
            if ( dialogResult == true )  
            {  
                try 
                {  
                    FilesServiceReference.FilesClient fileClient  
                        = new FilesClient();  
                    fileClient.GetFileCompleted  
                        += new EventHandler<GetFileCompletedEventArgs>(  
                            fileClient_GetFileCompleted );  
                    fileClient.GetFileAsync();   
 
 
                    this.tblError.Text = "Getting file from the server...";  
                }  
                catch ( Exception ex )  
                {  
                    this.tblError.Text = "Error calling service: " + ex.Message;  
                }  
            }  
        }  
        void fileClient_GetFileCompleted( object sender, GetFileCompletedEventArgs e )  
        {  
            try 
            {  
                byte[] fileBytes = e.Result as byte[];  
 
                using ( Stream fs = ( Stream )this.dialog.OpenFile() )  
                {  
                    fs.Write( fileBytes, 0, fileBytes.Length );  
                    fs.Close();  
 
                    this.tblError.Text = "File successfully saved!";  
                }  
            }  
            catch ( Exception ex )  
            {  
                this.tblError.Text = "Error getting result: " + ex.Message;  
            }  
        }
        #endregion     
 
    }  
}