public void EmptyDataBase()
{
Walls.RemoveRange(Walls);
Windows.RemoveRange(Windows);
WallBeams.RemoveRange(WallBeams);
Doors.RemoveRange(Doors);
DecorativeColumns.RemoveRange(DecorativeColumns);
Architects.RemoveRange(Architects);
Administrators.RemoveRange(Administrators);
Clients.RemoveRange(Clients);
Designers.RemoveRange(Designers);
SaveChanges();
}
