关于邮件附件下载的问题。。。。

Question

没有人帮忙吗?是不是给的分太少了?

Answer 1

我是用DataReader

if (dataReader.Read())
{
string filename = dataReader.GetSqlValue(0).ToString();
long byteSize = dataReader.GetBytes(2,0,null,0,0);
byte[] ImageData = new byte[byteSize];
dataReader.GetBytes(2,0,ImageData,0,(int)byteSize);

Response.Clear();
Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");
                Response.ContentType = "application/octet-stream";
Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(filename));
Response.BinaryWrite(ImageData);
Response.End();
}