Answer by AMissico for How should I multiple insert multiple records?

static void InsertSettings(IEnumerable<Entry> settings) {    using (SqlConnection oConnection = new SqlConnection("Data Source=(local);Initial Catalog=Wip;Integrated Security=True")) {        oConnection.Open();        using (SqlTransaction oTransaction = oConnection.BeginTransaction()) {            using (SqlCommand oCommand = oConnection.CreateCommand()) {                oCommand.Transaction = oTransaction;                oCommand.CommandType = CommandType.Text;                oCommand.CommandText = "INSERT INTO [Setting] ([Key], [Value]) VALUES (@key, @value);";                oCommand.Parameters.Add(new SqlParameter("@key", SqlDbType.NChar));                oCommand.Parameters.Add(new SqlParameter("@value", SqlDbType.NChar));                try {                    foreach (var oSetting in settings) {                        oCommand.Parameters[0].Value = oSetting.Key;                        oCommand.Parameters[1].Value = oSetting.Value;                        if (oCommand.ExecuteNonQuery() != 1) {                            //'handled as needed,                             //' but this snippet will throw an exception to force a rollback                            throw new InvalidProgramException();                        }                    }                    oTransaction.Commit();                } catch (Exception) {                    oTransaction.Rollback();                    throw;                }            }        }    }}