C # create a folder

C # Directory class is required for folder operations. Static methods such as creation, deletion, movement, and enumeration are provided. This class cannot be inherited.

 

The following code creates a folder.

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1234	if (!Directory.Exists(sPath)){     Directory.CreateDirectory(sPath);}

 

The following is the sample code of Directory class on msdn.

Http://msdn.microsoft.com/en-us/library/system.io.directory.aspx

 

The following code first checks whether the specified folder exists. If yes, delete it. Otherwise, create it. Next, move the folder, create a file in it, and count the number of files in the folder.

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using System;using System.IO; class Test {    public static void Main()     {        // Specify the directories you want to manipulate.        string path = @"c:\MyDir";        string target = @"c:\TestDir";         try        {            // Determine whether the directory exists.            if (!Directory.Exists(path))             {                // Create the directory it does not exist.                Directory.CreateDirectory(path);            }             if (Directory.Exists(target))             {                // Delete the target to ensure it is not there.                Directory.Delete(target, true);            }             // Move the directory.            Directory.Move(path, target);             // Create a file in the directory.            File.CreateText(target + @"\myfile.txt");             // Count the files in the target directory.            Console.WriteLine("The number of files in {0} is {1}",                target, Directory.GetFiles(target).Length);        }         catch (Exception e)         {            Console.WriteLine("The process failed: {0}", e.ToString());        }         finally {}    }}

The following code calculates the folder size.

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// The following example calculates the size of a directory// and its subdirectories, if any, and displays the total size// in bytes. using System;using System.IO; public class ShowDirSize {    public static long DirSize(DirectoryInfo d)     {            long Size = 0;            // Add file sizes.        FileInfo[] fis = d.GetFiles();        foreach (FileInfo fi in fis)         {                  Size += fi.Length;            }        // Add subdirectory sizes.        DirectoryInfo[] dis = d.GetDirectories();        foreach (DirectoryInfo di in dis)         {            Size += DirSize(di);           }        return(Size);      }    public static void Main(string[] args)     {        if (args.Length != 1)         {            Console.WriteLine("You must provide a directory argument at the command line.");            }         else        {              DirectoryInfo d = new DirectoryInfo(args[0]);            long dsize = DirSize(d);            Console.WriteLine("The size of {0} and its subdirectories is {1} bytes.", d, dsize);        }    }}