private void AllPeople_Load(object sender, EventArgs e)
 {
     using (DepoziteDbEntities1 db = new DepoziteDbEntities1())
     {
         dataGridView1.DataSource = db.usp_AllPerson.ToList();
     }
 }
 private void AddCredite_Load(object sender, EventArgs e)
 {
     using (DepoziteDbEntities1 db = new DepoziteDbEntities1())
     {
         Person per = db.People.ToList().LastOrDefault();
         Lb_userName.Text = per.Name;
     }
 }
 private void Btn_saveCredite_Click(object sender, EventArgs e)
 {
     using (DepoziteDbEntities1 db = new DepoziteDbEntities1())
     {
         Person f_person = db.People.ToList().LastOrDefault();
         db.Credities.Add(new Credity()
         {
             DateOfCredit = Dt_DateCredite.Value,
             Price        = Convert.ToDecimal(Txb_price.Text),
             Person       = f_person,
             Person_Id    = f_person.Id
         });
         db.SaveChanges();
     }
 }