c# 实现点击下载功能

转自百度知道

 private void DownLoad(string strName, string strPath)

        {

            string fileName = strName;//客户端保存的文件名

            string filePath = Server.MapPath(strPath);//路径 

            //以字符流的形式下载文件

            FileStream fs = new FileStream(filePath, FileMode.Open);

            byte[] bytes = new byte[(int)fs.Length];

            fs.Read(bytes, 0, bytes.Length);

            fs.Close();

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

            //通知浏览器下载文件而不是打开

            Response.AddHeader("Content-Disposition", "attachment;  filename=" +   HttpUtility.UrlEncode(fileName, System.Text.Encoding.UTF8));

            Response.BinaryWrite(bytes);

            Response.Flush();

            Response.End();

        }