//Thêm 1 đầu bếp vào danh sách
        public Boolean InsertChef(ChefDTO lst)
        {
            try
            {
                CHEF_INFO newDishType = new CHEF_INFO()
                {
                    Id = Guid.NewGuid(),
                    NAME = lst.NAME,
                    ADDRESS = lst.ADDRESS,
                    BIRTHDAY = lst.BIRTHDAY,
                    PHONE = lst.PHONE
                };

                Context.CHEF_INFO.AddObject(newDishType);
                Context.SaveChanges();
                return true;
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }
 /// <summary>
 /// Create a new CHEF_INFO object.
 /// </summary>
 /// <param name="id">Initial value of the Id property.</param>
 /// <param name="nAME">Initial value of the NAME property.</param>
 public static CHEF_INFO CreateCHEF_INFO(global::System.Guid id, global::System.String nAME)
 {
     CHEF_INFO cHEF_INFO = new CHEF_INFO();
     cHEF_INFO.Id = id;
     cHEF_INFO.NAME = nAME;
     return cHEF_INFO;
 }
 /// <summary>
 /// Deprecated Method for adding a new object to the CHEF_INFO EntitySet. Consider using the .Add method of the associated ObjectSet&lt;T&gt; property instead.
 /// </summary>
 public void AddToCHEF_INFO(CHEF_INFO cHEF_INFO)
 {
     base.AddObject("CHEF_INFO", cHEF_INFO);
 }
 //cập nhật thông tin  nhân viên 
 public Boolean UpdateChef(CHEF_INFO lst)
 {
     try
     {
         CHEF_INFO query = (from p in Context.CHEF_INFO where p.Id == lst.Id select p).SingleOrDefault();
         query.NAME = lst.NAME;
         query.ADDRESS = lst.ADDRESS;
         query.BIRTHDAY = lst.BIRTHDAY;
         query.PHONE = lst.PHONE;
         Context.SaveChanges();
         return true;
     }
     catch (Exception ex)
     {
         throw ex;
     }
 }
 public Boolean InsertCheft(CHEF_INFO lst)
 {
     try
     {
         lst.Id = Guid.NewGuid();
         Context.CHEF_INFO.AddObject(lst);
         Context.SaveChanges();
         return true;
     }
     catch (Exception ex)
     {
         throw ex;
     }
 }
        private void button15_Click(object sender, EventArgs e)
        {
            BindDataDauBep();
            SMSRepostitory rep = new SMSRepostitory();
            CHEF_INFO dt = new CHEF_INFO();
            if (FormState == FormBase.FormStateType.New)
            {
                dt.NAME = textBox7.Text.Trim();
                dt.BIRTHDAY = dateTimePicker1.Value;
                dt.ADDRESS = textBox4.Text.Trim();
                dt.PHONE = textBox5.Text.Trim();


                rep.InsertCheft(dt);
            }
            else if (FormState == FormBase.FormStateType.Edit)
            {
                dt.Id = PKEY;
                dt.NAME = textBox7.Text.Trim();
                dt.BIRTHDAY = dateTimePicker1.Value;
                dt.ADDRESS = textBox4.Text.Trim();
                dt.PHONE = textBox5.Text.Trim();
                rep.UpdateChef(dt);
            }
            FormState = FormBase.FormStateType.Normal;
            LoadDataDauBep();
        }