public void insertData() { DataConnection dataCon = new DataConnection(); try { employeesUC.ID.ToString(); SqlCommand cmd = new SqlCommand("selecttrainByID", dataCon.openConnection()); cmd.CommandType = CommandType.StoredProcedure; cmd.Parameters.AddWithValue("@id", employeesUC.ID); SqlDataReader reader = cmd.ExecuteReader(); while (reader.Read()) { comboTrainType.Text = reader["type"].ToString(); comboStart.SelectedIndex = Convert.ToInt16(reader["startingPoint"].ToString()) - 1; comboDestination.SelectedIndex = Convert.ToInt16(reader["destinationPoint"].ToString()) - 1; txtMAC.Text = reader["MACaddress"].ToString(); richtxtDescription.Text = reader["Desciption"].ToString(); } } catch (SqlException) { errorMessage er = new errorMessage(); er.Show(); } finally { dataCon.openConnection(); } }
: throw new ArgumentException(errorMessage, nameof(text));
parameter?.Length is 0 ? throw new ArgumentException(errorMessage, parameterName) : parameter;
parameter?.GetEnumerator().MoveNext() is false ? throw new ArgumentException(errorMessage, parameterName) : parameter;