//void init()
        //{
        //    Nanny nan1 = new Nanny()
        //    {
        //        Id = 111111111,
        //        Family_Name = "choen",
        //        First_Name = "rachel",
        //        Birth_Date = new DateTime(1996, 01, 01),
        //        Phone_Number = 123,
        //        Country = "isreal",
        //        City = "metula",
        //        Street = "halevanon",
        //        Elevator = true,
        //        Floor = 5,
        //        Years_Experience = 3,
        //        Max_Children = 2,
        //        Min_Kid_Age = 4,
        //        Max_Kid_Age = 24,
        //        Is_Hour_Salary = true,
        //        Hour_Salary=20,
        //        Month_Salary = 1000,
        //        Vacation_By_Education = true,
        //        Vacation_By__Tmt = false,
        //        Recommendations = "very good",
        //        Is_Religious = true,
        //        Is_OutDoors = false,
        //        Comfort_With_Pets = false,
        //        Smoking = true,
        //        Gives_Food = true
        //    };
        //    nan1.Work_Day[(int)Days.Sunday] = true;
        //    nan1.Work_Hours[0, 0] = new DateTime(2000, 01, 01, 10, 00, 00);
        //    nan1.Work_Hours[1, 0] = new DateTime(2000, 01, 01, 13, 00, 00);
        //    nan1.Spoken_Languages[(int)Languages.Hebrew] = true;
        //    nan1.Spoken_Languages[(int)Languages.Yiddish] = true;
        //    Add_Nanny(nan1);
        //    Nanny nan2 = new Nanny()
        //    {
        //        Id = 222222222,
        //        Family_Name = "choen",
        //        First_Name = "shira",
        //        Birth_Date = new DateTime(1990, 01, 01),
        //        Phone_Number = 456,
        //        Country = "isreal",
        //        City = "metula",
        //        Street = "halevanon",
        //        Elevator = false,
        //        Floor = 3,
        //        Years_Experience = 1,
        //        Max_Children = 2,
        //        Min_Kid_Age = 2,
        //        Max_Kid_Age = 24,
        //        Is_Hour_Salary = true,
        //        Hour_Salary = 30,
        //        Month_Salary = 800,
        //        Vacation_By_Education = true,
        //        Vacation_By__Tmt = false,
        //        Recommendations = "very good",
        //        Is_Religious = false,
        //        Is_OutDoors = false,
        //        Comfort_With_Pets = false,
        //        Smoking = false,
        //        Gives_Food = false
        //    };
        //    nan2.Work_Day[(int)Days.Monday] = true;
        //    nan2.Work_Day[(int)Days.Tuesday] = true;
        //    nan2.Work_Hours[0, 1] = new DateTime(2000, 01, 01, 08, 00, 00);
        //    nan2.Work_Hours[1, 1] = new DateTime(2000, 01, 01, 13, 00, 00);
        //    nan2.Work_Hours[0, 2] = new DateTime(2000, 01, 01, 10, 00, 00);
        //    nan2.Work_Hours[1, 2] = new DateTime(2000, 01, 01, 14, 00, 00);
        //    nan2.Spoken_Languages[(int)Languages.Hebrew] = true;
        //    nan2.Spoken_Languages[(int)Languages.English] = true;
        //    Add_Nanny(nan2);
        //    Mother mom = new Mother()
        //    {
        //        Id = 333333333,
        //        Family_Name = "lev",
        //        First_Name = "sheli",
        //        Phone_Number = 111,
        //        Home_Country = "isreal",
        //        Home_City = "metula",
        //        Home_Street = "halevanon",
        //        Min_Years_Experience = 1,
        //        Want_Hour_Salary = true,
        //        Food_From_Nanny = true,
        //        Take_By_Car = true,
        //        Religious_Nanny = true,
        //        Smoking_Nanny = true,
        //        Comments = "hello"
        //    };
        //    mom.Wanted_Days[(int)Days.Monday] = true;
        //    mom.Wanted_Hours[0, 1] = new DateTime(2000, 01, 01, 11, 00, 00);
        //    mom.Wanted_Hours[1, 1] = new DateTime(2000, 01, 01, 12, 30, 00);
        //    Add_Mother(mom);
        //    Mother mom2 = new Mother()
        //    {
        //        Id = 444444444,
        //        Family_Name = "levi",
        //        First_Name = "shira",
        //        Phone_Number = 333,
        //        Home_Country = "isreal",
        //        Home_City = "Yafo",
        //        Home_Street = "bbb",
        //        Min_Years_Experience = 2,
        //        Food_From_Nanny = false,
        //        Want_Hour_Salary = false,
        //        Take_By_Car = false,
        //        Religious_Nanny = false,
        //        Smoking_Nanny = true,
        //        Comments = "hello"
        //    };
        //    mom2.Wanted_Days[(int)Days.Sunday] = true;
        //    mom2.Wanted_Hours[0, 0] = new DateTime(2000, 01, 01, 11, 00, 00);
        //    mom2.Wanted_Hours[1, 0] = new DateTime(2000, 01, 01, 12, 30, 00);
        //    Add_Mother(mom2);
        //    Add_Child(new Child()
        //    {
        //        Id = 555555555,
        //        First_Name = "bobi",
        //        Mother_Id = 444444444,
        //        Birth_Date = new DateTime(2017, 01, 01),
        //        Allergy = "milk",
        //        Without_Diapers = true
        //    });

        //    Add_Child(new Child()
        //    {
        //        Id = 666666666,
        //        First_Name = "shimshon",
        //        Mother_Id = 333333333,
        //        Birth_Date = new DateTime(2016, 01, 01),
        //        Without_Diapers = true
        //    });


        //    Add_Child(new Child()
        //    {
        //        Id = 777777777,
        //        First_Name = "ori",
        //        Mother_Id = 333333333,
        //        Birth_Date = new DateTime(2017, 11, 01),
        //        Without_Diapers = true
        //    });

        //    Add_Contract(new Contract()
        //    {
        //        Nanny_Id = 111111111,
        //        Child_Id = 666666666,
        //        Meeting = true,
        //        Contract_Was_Signed = true,
        //        Is_Month_Salary = false,
        //        Hour_Salary = Get_Nanny(111111111).Hour_Salary
        //    });



        //}

        #region child_func
        public void Add_Child(Child child1)
        {
            Mother mom = Get_Mother(child1.Mother_Id);

            if (mom == null)//didnt find his mom
            {
                throw new Exception("cant be child without mother");
            }

            int age = (DateTime.Now.Subtract(child1.Birth_Date).Days);//we make minus between now and birth date and take all the days that she lives

            if (age < 0)
            {
                throw new Exception("wrong birth date");
            }

            my_dal.Add_Child(child1);
        }