Dispose pattern

Foo.cs

class Foo : IDisposable
{
    private bool _disposed;

    ~Foo()
    {
        Dispose(false);
    }

    public void Dispose()
    {
        Dispose(true);
        GC.SuppressFinalize(this);
    }

    protected virtual void Dispose(bool disposing)
    {
        if (!_disposed)
        {
            if (disposing)
            {
                // Free managed objects
            }
            // Free unmanaged objects
            _disposed = true;
        }
    }
}