Dispose_example.cs

public class UnmanagedClass : IDisposable
{
    public void Dispose()
    {
        CleanUp(true);
        GC.SuppressFinalize(this);
    }

    private void CleanUp(bool disposing)
    {
        if (disposing)
        {
            // any thread-specific cleanup code
        }

        // cleaning unmanaged resources here
    }

    public void Finalize()
    {
        CleanUp(false);
    }
}