C# calculate disk size

显示全部楼层 · 2019-11-21 22:00:32

static void Main(string[] args)
{
string dir = @"C:";
string[] dirs=Directory.GetDirectories(dir);
long totalSize = 0;
if(dirs!=null && dirs.Any())
{
foreach(string dr in dirs)
{
var size = new DirectoryInfo(dr).GetDirectorySize();
totalSize += size;
Console.WriteLine($"dir:{dr},size:{size}");
}
}
Console.WriteLine($"totalSize:{totalSize}");
System.Diagnostics.Debug.WriteLine($"totalSize:{totalSize}");
}
static class DirHelper
{
public static long GetDirectorySize(this System.IO.DirectoryInfo directoryInfo, bool recursive = true)
{
var startDirectorySize = default(long);
try
{
if (directoryInfo == null || !directoryInfo.Exists)
return startDirectorySize; //Return 0 while Directory does not exist.
//Add size of files in the Current Directory to main size.
foreach (var fileInfo in directoryInfo.GetFiles())
System.Threading.Interlocked.Add(ref startDirectorySize, fileInfo.Length);
if (recursive) //Loop on Sub Direcotries in the Current Directory and Calculate it's files size.
System.Threading.Tasks.Parallel.ForEach(directoryInfo.GetDirectories(), (subDirectory) =>
System.Threading.Interlocked.Add(ref startDirectorySize, GetDirectorySize(subDirectory, recursive)));
//Return full Size of this Directory.
}
catch
{
}
return startDirectorySize;
}
}

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