Property equality comparison on two objects

comaprison.cs

    // Shamelessly stolen and adapted from http://stackoverflow.com/questions/506096/comparing-object-properties-in-c 
    public static class Comparisons
    {
        public static bool PublicInstancePropertiesEqual<T>(this T self, T to, params string[] ignore) where T : class
        {
            if (self != null && to != null)
            {
                var type = typeof(T);
                foreach (var propertyName in type.GetProperties(System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Instance).Select(pi => pi.Name).Except(ignore))
                {
                    var selfValue = type.GetProperty(propertyName).GetValue(self, null);
                    var toValue = type.GetProperty(propertyName).GetValue(to, null);

                    if (selfValue != toValue && (selfValue == null || !selfValue.Equals(toValue)))
                        return false;
                }
                return true;
            }
            return self == to;
        }
    }