ASP.NET(C#)下载图片代码

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原文：http://www.cnblogs.com/bynet/archive/2010/06/21/1762158.html

Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->try

{

string FullFileName = Server.MapPath(@"/images/imgname.jpg"); //FileName--要下载的文件名

System.IO.FileInfo DownloadFile = new System.IO.FileInfo(FullFileName);

if (DownloadFile.Exists)

{

Response.Clear();

Response.ClearHeaders();

Response.Buffer = false;

Response.ContentType = "application/octet-stream";

Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(DownloadFile.Name, System.Text.Encoding.ASCII));

Response.AppendHeader("Content-Length", DownloadFile.Length.ToString());

Response.WriteFile(DownloadFile.FullName);

Response.Flush();

Response.End();

}

else

{

//文件不存在

}

}

catch

{

//文件不存在

}