private void button1_Click(object sender, EventArgs e) { var myClient = new ClientOfPark() { Name = clientNameCB.Text, RegNo = clientBankTB.Text, J = clientJTB.Text, Address = clientJTB.Text, BankAccount = clientBankAccountTB.Text, BankName = clientBankTB.Text, Phone = clientPhoneTB.Text, }; //To be put on main page db.ClientOfParks.Add(myClient); db.SaveChanges(); // send the client to the parent form parent.PopulateClientObject(myClient); Close(); }