Paul Kemper

public static void DoubleBuffered<T>(this T obj, bool isDoubleBuffered)
{
    Type dgvType = obj.GetType();
    PropertyInfo pi = dgvType.GetProperty("DoubleBuffered", BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.SetProperty);
    pi.SetValue(obj, isDoubleBuffered, null);
}

this.DoubleBuffered(true);