RPS.Config.savePersistantConfig C# (CSharp) Method

        public bool savePersistantConfig()
        {
            if (this.persistant != null) {
                this.persistant["effects"] = JsonConvert.SerializeObject(this.effects);
                this.persistant["filters"] = Convert.ToString(this.browser.Document.InvokeScript("getJsonFilters"));
                if (this.screensaver.action != Screensaver.Actions.Config) {
                    for (int i = 0; i < this.screensaver.monitors.Length; i++) {
                        this.persistant["historyM" + Convert.ToString(i)] = JsonConvert.SerializeObject(this.screensaver.monitors[i].historyLastEntries(Convert.ToInt32(this.getPersistant("rememberLast"))));
                        this.persistant["historyOffsetM" + Convert.ToString(i)] = Convert.ToString(this.screensaver.monitors[i].offset);
                    }
                }

                this.connectToDB();
                SQLiteTransaction transaction = null;
                try {
                    transaction = this.dbConnector.connection.BeginTransaction(true);
                } catch (System.Data.SQLite.SQLiteException se) {
                    this.screensaver.showInfoOnMonitors("Error: " + se.Message, true);
                    return false;
                }
                foreach (var p in this.persistant) {
                    SQLiteCommand insertSQL = new SQLiteCommand("INSERT OR REPLACE INTO Setting (key, value) VALUES (@key, @value);", this.dbConnector.connection);
                    insertSQL.Parameters.AddWithValue("@key", p.Key);
                    insertSQL.Parameters.AddWithValue("@value", p.Value);
                    insertSQL.ExecuteNonQuery();
                }
                transaction.Commit();
            }
            return true;
        }