网页下载IE,FireFox文件名编码

在Firefox中需要把filename 用双引号包起来，才能得到想要的名字，不然如果含有空格，会丢掉空格后面的部分。
而IE会把空格转为_,因此也需要 HttpUtility.UrlPathEncode方法处理下名字。
如果Firefox中也用 HttpUtility.UrlPathEncode处理名字，空格将被替换成"%20".

HttpContext.Current.Response.Buffer  =   true ;
HttpContext.Current.Response.ClearContent();
HttpContext.Current.Response.ClearHeaders();
HttpContext.Current.Response.ContentType  =   " Application/pdf " ;
string  doc1  =  System.IO.Path.GetFileNameWithoutExtension(doc)  +   " _ "   +  intNewID.ToString()  +   " .pdf " ;

if (HttpContext.Current.Request.Browser.Browser  !=   " IE " )
         HttpContext.Current.Response.AddHeader( " Content-Disposition " ,  " attachment;filename=\" "   + doc1 + " \" " );
else
    HttpContext.Current.Response.AddHeader( " Content-Disposition " ,  " attachment;filename= " +  HttpUtility.UrlPathEncode( doc1));
byte [] buffer = System.IO.File.ReadAllBytes(doc);
HttpContext.Current.Response.AddHeader( " Content-Length " , buffer.Length.ToString());
HttpContext.Current.Response.BinaryWrite(buffer);

转: http://www.cnblogs.com/hardrock/archive/2009/09/30/1576709.html