How to download a file from server in .net?

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How to download a file from server in .net?
Thanks.
DK Dixit

Posted 10-Nov-11 23:50pm

Durgesh kumar Dixit

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koolprasad2003 · Answer 1 · 2011-11-11T00:03:00

use following code

C#

System.String filename = "myFile.txt";

// set the http content type to "APPLICATION/OCTET-STREAM
Response.ContentType = "APPLICATION/OCTET-STREAM";
   
// initialize the http content-disposition header to
Response.AppendHeader("Content-Disposition", filename);

 // transfer the file byte-by-byte to the response object
System.IO.FileInfo fileToDownload = new System.IO.FileInfo("C:\\myFile.txt");
Response.Flush();
Response.WriteFile(fileToDownload.FullName);}

uspatel · Answer 2 · 2011-11-10T23:59:00

Solution 1

See CP article
File Download

Posted 10-Nov-11 23:59pm

uspatel

sravani.v · Answer 3 · 2011-11-11T00:09:00

Solution 3

Refer this link:

http://shawpnendu.blogspot.com/2009/05/how-to-download-file-from-server-using.html[^]

Posted 11-Nov-11 0:09am

sravani.v

shashikanth 2011 · Answer 4 · 2011-11-11T04:10:00

As Mr.koolprasd2003 mentioned,
you have to set
Response.ContentType first, but to know the content type by using fileextenctions you can use this method

C#

public string getContentType(string extension)
       {
           const string DEFAULT_CONTENT_TYPE = "application/unknown";

           RegistryKey regkey, fileextkey;
           string filecontenttype;


           string fileextension = extension;

           try
           {

               regkey = Registry.ClassesRoot;


               fileextkey = regkey.OpenSubKey(fileextension);


               filecontenttype = fileextkey.GetValue("Content Type",         DEFAULT_CONTENT_TYPE).ToString();


               fileextkey = null;
               regkey = null;

           }
           catch
           {
               filecontenttype = DEFAULT_CONTENT_TYPE;
           }



           return filecontenttype;


       }

C#

Response.ContentType = getContentType(".jpg");
Response.AppendHeader("Content-Disposition", "Filename");

How to download a file from server in .net?

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