TempDirectory.cs

using System;
using System.IO;

public sealed class TempDirectory : IDisposable
{
    private string _path;

    public TempDirectory()
        : this(System.IO.Path.GetTempFileName())
    {
        CreateDirectory();
    }

    public TempDirectory(string path)
    {
        if (string.IsNullOrEmpty(path)) throw new ArgumentNullException("path");
        _path = path;
    }

    public string Path
    {
        get
        {
            if (_path == null) throw new ArgumentNullException($"{GetType().Name} was disposed");
            return _path;
        }
    }

    private void CreateDirectory()
    {
        File.Delete(_path);
        Directory.CreateDirectory(_path);
    }

    ~TempDirectory()
        => Dispose(false);

    public void Dispose()
        => Dispose(true);

    private void Dispose(bool disposing)
    {
        if (disposing)
            GC.SuppressFinalize(this);

        if (_path != null)
        {
            try
            {
                Directory.Delete(_path, true);
            }
            catch { }

            _path = null;
        }
    }
}