pinvoke.net: Edit: kernel32.RemoveDirectory

@msdn=https://msdn.microsoft.com/en-us/library/windows/desktop/aa365488(v=vs.85).aspx
@pinvoke=http://pinvoke.net/$$$.htm

Summary: The RemoveDirectory API

!!!!C# Signature:
 [DllImport("kernel32.dll", CharSet=CharSet.Unicode, SetLastError=true)]
 static extern bool RemoveDirectory(string lpPathName);
!!!!User-Defined Types:
None.

!!!!Notes:
Only deletes the end-most directory. The directory must be empty.

!!!!Tips & Tricks:

'''Iteratively Remove a Directory Tree'''

I updated the create directory code (LongPathDirectory.Delete()) code in the Microsoft.Experimental.IO project (http://bcl.codeplex.com/releases/view/42783) so some of the classes referenced in the code below are from that project.

internal static class NativeMethods 
    {
        [DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Unicode)]
        [return: MarshalAs(UnmanagedType.Bool)]
        internal static extern bool RemoveDirectory(string lpPathName);
    }

public static void Delete(string path)
        {
            if (String.IsNullOrEmpty(path))
            {
                throw new ArgumentException("Path cannot be an empty string.");
            }

char[] dirSeps = new char[] { '\\', '/' };

string normalizedPath = LongPathCommon.NormalizeLongPath(path);

// Get the minimum number of path separators in a valid string... will vary depending on whether it's a UNC path or not.
            int minDirSepPos = 4;   // \\?\c:\dir
            if (normalizedPath.Contains("UNC"))
            {
                minDirSepPos = 6;   // \\?\UNC\server\share\dir
            }

// Get the minimum remaining string length once all required path components are accounted for.
            int minLength = -1;
            try
            {
                for (int i = 0; i < minDirSepPos; i++)
                {
                    minLength = normalizedPath.IndexOfAny(dirSeps, ++minLength);
                }
            }
            catch (ArgumentOutOfRangeException e)
            {
                throw new ArgumentException("Invalid path specified: " + path);
            }

while (true)
            {
                // Remove the path
                if (!NativeMethods.RemoveDirectory(normalizedPath))
                {
                    throw LongPathCommon.GetExceptionFromLastWin32Error();
                }

normalizedPath = normalizedPath.Remove(normalizedPath.LastIndexOfAny(dirSeps));

if (normalizedPath.Length <= minLength)
                {
                    break;
                }
            }
        }

!!!!Sample Code:

String path = @"c:\temp\oldDir";
  RemoveDirectory(path);

!!!!Alternative Managed API:
System.IO.Directory.Delete().
Documentation: RemoveDirectory@msdn on MSDN