Csharp/CSharp Tutorial/File Directory Stream/Directory Size

Calculate Directory Size

<source lang="csharp">using System; using System.IO; static class MainClass {

   static void Main(string[] args)
   {
       DirectoryInfo dir = new DirectoryInfo("c:\\a");
       Console.WriteLine("Total size: " + CalculateDirectorySize(dir, true).ToString() + " bytes.");
   }
   static long CalculateDirectorySize(DirectoryInfo directory, bool includeSubdirectories)
   {
       long totalSize = 0;
       // Examine all contained files.
       FileInfo[] files = directory.GetFiles();
       foreach (FileInfo file in files)
       {
           totalSize += file.Length;
       }
       // Examine all contained directories.
       if (includeSubdirectories)
       {
           DirectoryInfo[] dirs = directory.GetDirectories();
           foreach (DirectoryInfo dir in dirs)
           {
               totalSize += CalculateDirectorySize(dir, true);
           }
       }
       return totalSize;
   }

}</source>