using?System;
using?System.Collections.Generic;
using?System.Web;

public?static?class?DownloadFile
{
????public?static?void?ResponseFile（string?path?HttpContext?contextbool?hasfileName）
????{
????????context?=?HttpContext.Current;

????????System.IO.Stream?iStream?=?null;
????????byte[]?buffer?=?new?Byte[10000];
????????int?length;
????????long?dataToRead;
????????string?filename;
????????if?（!hasfileName）
????????{
????????????filename?=?System.IO.Path.GetFileName（path）;
????????}
????????else
????????{
????????????filename?=?“down_“?+?DateTime.Now.ToString（“yyyyMMddHHmmss“）+“.zip“;
????????}

????????try
????????{
????????????iStream?=?new?System.IO.FileStream（path?System.IO.FileMode.Open?System.IO.FileAccess.Read?System.IO.FileShare.Read）;
????????????dataToRead?=?iStream.Length;
????????????context.Response.ContentType?=?“application/octet-stream“;
????????????context.Response.AddHeader（“Content-Disposition“?“attachment;?filename=“?+?HttpUtility.UrlEncode（filename?System.Text.Encoding.UTF8））;

????????????while?（dataToRead?>?0）
????????????{
????????????????if?（context.Response.IsClientConnected）
????????????????{
????????????????????length?=?iStream.Read（buffer?0?10000）;
????????????????????context.Response.OutputStream.Write（buffer?0?length）;
????????????????????context.Response.Flush（）;

????????????????????buffer?=?new?Byte[10000];
????????????????????dataToRead?=?dataToRead?-?length;
????????????????}
????????????????else
????????????????{
????????????????????dataToRead?=?-1;
????????????????}
????????????}
????????}
????????catch?（Exception?ex）
????????{
????????????context.Response.Write（ex.Message）;
????????}
????????finally
????????{
????????????if?（iStream?!=?null）
????????????{
????????????????iStream.Close（）;
????????????}
????????}
????}


}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件?????526336??2012-08-17?19:03??在線文件管理模塊.ppt

?????文件???????1281??2012-08-14?20:01??素材\#download.zip

?????文件???????1091??2012-08-14?20:55??素材\Ajax.js

?????文件???????1386??2008-12-25?08:58??素材\css\WebExplorer.css

?????文件???????9315??2012-08-14?20:56??素材\Dialog.js

?????文件?????229376??2008-07-14?15:08??素材\dll\ActiproSoftware.CodeHighlighter.Net20.dll

?????文件?????229376??2008-07-14?15:02??素材\dll\ActiproSoftware.Shared.Net20.dll

?????文件??????17408??2008-07-14?15:08??素材\dll\CodeHighlighterTest.dll

?????文件??????45056??2008-07-26?14:53??素材\dll\FredCK.FCKeditorV2.dll

?????文件?????143360??2008-09-28?18:36??素材\dll\ICSharpCode.SharpZipLib.dll

?????文件????????236??2008-08-05?11:40??素材\fckeditor\editor\css\behaviors\disablehandles.htc

?????文件????????822??2008-08-05?11:40??素材\fckeditor\editor\css\behaviors\showtableborders.htc

?????文件???????2648??2008-07-15?09:25??素材\fckeditor\editor\css\fck_editorarea.css

?????文件???????4145??2008-03-25?10:46??素材\fckeditor\editor\css\fck_internal.css

?????文件???????1696??2008-02-24?12:00??素材\fckeditor\editor\css\fck_showtableborders_gecko.css

?????文件????????288??2008-08-05?11:40??素材\fckeditor\editor\css\images\block_address.png

?????文件????????293??2008-08-05?11:40??素材\fckeditor\editor\css\images\block_blockquote.png

?????文件????????229??2008-08-05?11:40??素材\fckeditor\editor\css\images\block_div.png

?????文件????????218??2008-08-05?11:40??素材\fckeditor\editor\css\images\block_h1.png

?????文件????????220??2008-08-05?11:40??素材\fckeditor\editor\css\images\block_h2.png

?????文件????????219??2008-08-05?11:40??素材\fckeditor\editor\css\images\block_h3.png

?????文件????????229??2008-08-05?11:40??素材\fckeditor\editor\css\images\block_h4.png

?????文件????????236??2008-08-05?11:40??素材\fckeditor\editor\css\images\block_h5.png

?????文件????????216??2008-08-05?11:40??素材\fckeditor\editor\css\images\block_h6.png

?????文件????????205??2008-08-05?11:40??素材\fckeditor\editor\css\images\block_p.png

?????文件????????223??2008-08-05?11:40??素材\fckeditor\editor\css\images\block_pre.png

?????文件????????184??2008-08-05?11:40??素材\fckeditor\editor\css\images\fck_anchor.gif

?????文件????????599??2008-08-05?11:40??素材\fckeditor\editor\css\images\fck_flashlogo.gif

?????文件????????105??2008-08-05?11:40??素材\fckeditor\editor\css\images\fck_hiddenfield.gif

?????文件?????????54??2008-08-05?11:40??素材\fckeditor\editor\css\images\fck_pagebreak.gif

............此處省略767個文件信息