public CityView(cities c)
{
_c = c;
}
partial void Deletecities(cities instance);
partial void Updatecities(cities instance);
partial void Insertcities(cities instance);
private void detach_cities(cities entity)
{
this.SendPropertyChanging();
entity.districts = null;
}
private void attach_cities(cities entity)
{
this.SendPropertyChanging();
entity.districts = this;
}