C # File Download method

One: TransmitFile file download, do not need to open close file, directly into the transport stream

Response.ContentType = "application/x-zip-compressed";

Response.AddHeader ("Content-disposition",

"Attachment;filename=z.zip");

string filename = Server.MapPath ("Download/z.zip");

Response.TransmitFile (filename);

Two:

}

//

Second: WriteFile download file

String fileName = "Asd.txt";//

File name saved by the client

String Filepath=server.mappath ("Download/aaa.txt");// Path

FileInfo FileInfo = new FileInfo (FilePath);

Response.Clear ();

Response.clearcontent ();

Response.ClearHeaders ();

Response.AddHeader ("Content-disposition", "attachment;filename=" + filename);

Response.AddHeader ("Content-length", fileInfo.Length.ToString ());

Response.AddHeader ("content-transfer-encoding", "binary");

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

response.contentencoding = System.Text.Encoding.GetEncoding ("gb2312");

Response.WriteFile (Fileinfo.fullname);

Response.Flush ();

Response.End ();

Three: Stream mode download

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"; Notifies the browser to download a file instead of opening it

Response.AddHeader ("Content-disposition", "attachment; Filename= "+ httputility.urlencode (FileName, System.Text.Encoding.UTF8));

Response.BinaryWrite (bytes);

Response.Flush ();

Response.End ();

Four: WriteFile download their own Baidu to

C # File Download method