Add listbox items to database ADO.NET entity framework C#

formes.DB.TBL_SPECIALIST p = new formes.DB.TBL_SPECIALIST();
p.SPECIALIST_DATE = DateTime.Now;
p.SPECIALIST_NAME = edt_name.Text;
p.SPECIALIST_BIRTHDATE = edt_brith_date.Value;
p.SPECIALIST_AGE_NOW = edt_age.Text;
p.SPECIALIST_EDUCATION = edt_education.Text;
p.SPECIALIST_ID_NUMBER = edt_id_num.Text;
p.SPECIALIST_PHONE = edt_phone.Text;
p.SPECIALIST_ADDRESS = edt_address.Text;
p.SPECIALIST_ACTIVE = edt_active.Text;
//listbox
p.SPECIALIST_WORKED_BEFORE = lbx_work_history.