private void btnAddReader_Click(object sender, EventArgs e) { READER reader = new READER(); CARD card = new CARD(); var tempReader = Connection.db.READERS.Count(); reader.idReader = tempIDReader + tempReader; reader.nameReader = txtFirstName.Text + txtLastName.Text; reader.idClass = cbbClass.SelectedValue.ToString(); if (cbbSex.SelectedText == "Male") { reader.sex = false; } else { reader.sex = true; } reader.birthday = Convert.ToDateTime(dtpBirthday.Text); reader.address = txtAddress.Text; ReaderDAL.addNewReader(reader); }