public void Delete(Team_Player team_player)
 {
     context.Team_Player.Remove(team_player);
 }
 public void Update(Team_Player team_player)
 {
     context.Team_Player.Attach(team_player);
     context.Entry(team_player).State = EntityState.Modified;
 }
 public void Add(Team_Player team_player)
 {
     context.Team_Player.Add(team_player);
 }