C# FAQs Series: How To Detect All Drives Connected?

àIn C# FAQs Series: We discuss most frequent questions asked on C# forums.

If you want to know about how many drives are connected to your computer. It’s very easy to detect using C#. Following is simple code…

Source Code:

using System;

using System.IO;

class MyProgram

{

public static void Main()

{

DriveInfo[] allDrives = DriveInfo.GetDrives();

foreach (DriveInfo d in allDrives)

{

Console.WriteLine("Drive {0}", d.Name);

Console.WriteLine(" File type: {0}", d.DriveType);

if (d.IsReady == true)

{

Console.WriteLine(" Volume label: {0}", d.VolumeLabel);

Console.WriteLine(" File system: {0}", d.DriveFormat);

Console.WriteLine(

" Available space to current user:{0, 15} bytes",

d.AvailableFreeSpace);

Console.WriteLine(

" Total available space: {0, 15} bytes",

d.TotalFreeSpace);

Console.WriteLine(

" Total size of drive: {0, 15} bytes ",

d.TotalSize);

}

}

}

}

Out-Put:

/*

This code produces output similar to the following:

Drive A:\

File type: Removable

Drive C:\

File type: Fixed

Volume label:

File system: FAT32

Available space to current user: 4770430976 bytes

Total available space: 4770430976 bytes

Total size of drive: 10731683840 bytes

Drive D:\

File type: Fixed

Volume label:

File system: NTFS

Available space to current user: 15114977280 bytes

Total available space: 15114977280 bytes

Total size of drive: 25958948864 bytes

Drive E:\

File type: CDRom

The actual output of this code will vary based on machine and the permissions

granted to the user executing it.

*/

C# FAQs Series: How Use FTP Using C#

àIn C# FAQs Series: We discuss most frequent questions asked on C# forums.

As a C# developer you may often have to use FTP. Following is simple program which will demonstrate how to FTP using C#.

using System;

using System.IO;

using System.Net;

using System.Text;

namespace Examples.System.Net

{

public class WebRequestGetExample

{

public static void Main ()

{

// Geting the object used to communicate with the server.

FtpWebRequest FWRrequest = (FtpWebRequest)WebRequest.Create( "ftp://www.mrmubi.com/mytest.htm");

request.Method = WebRequestMethods.Ftp.UploadFile;

// Set network credentials.

FWRrequest.Credentials = new NetworkCredential ("user","password");

// Copy the contents of the file to the request stream.

StreamReader sourceStream = new StreamReader("myfile.txt");

byte [] fileContents = Encoding.UTF8.GetBytes(sourceStream.ReadToEnd());

sourceStream.Close();

FWRrequest.ContentLength = fileContents.Length;

Stream requestStream = FWRrequest.GetRequestStream();

requestStream.Write(fileContents, 0, fileContents.Length);

requestStream.Close();

FtpWebResponse response = (FtpWebResponse)request.GetResponse();

Console.WriteLine("File upload complete , status {0}", response.StatusDescription);

response.Close();

}

}

}

}

How to download file using FTP in C#...

public static bool DisplayFileFromServer(Uri serverUri)

{

    // The serverUri parameter should start with the ftp:// scheme.

    if (serverUri.Scheme != Uri.UriSchemeFtp)

    {

        return false;

    }

    // Geting the object used to communicate with the server.

    WebClient WCrequest = new WebClient();

    // Credentials

    WCrequest.Credentials = new NetworkCredential ("user","password");

    try 

    {

        byte [] newFileData = WCrequest.DownloadData (serverUri.ToString());

        string fileString = System.Text.Encoding.UTF8.GetString(newFileData);

        Console.WriteLine(fileString);

    }

    catch (WebException e)

    {

        Console.WriteLine(e.ToString());

    }

    return true;

}

How to delete file using FTP in C#...

public static bool DeleteFileOnServer(Uri serverUri)

{

    // The serverUri parameter should use the ftp:// scheme.

    // It contains the name of the server file that is to be deleted.

    // Example: ftp://contoso.com/someFile.txt.

    // 

    if (serverUri.Scheme != Uri.UriSchemeFtp)

    {

        return false;

    }

    // Get the object used to communicate with the server.

    FtpWebRequest FWRrequest = (FtpWebRequest)WebRequest.Create(serverUri);

    FWRrequest.Method = WebRequestMethods.Ftp.DeleteFile;

    FtpWebResponse FWRresponse = (FtpWebResponse) FWRrequest.GetResponse();

    Console.WriteLine("File delete status: {0}",FWRresponse.StatusDescription);  

    FWRresponse.Close();

    return true;

}

You see how easy is it to play with your FTP account in C#.