How to save and read from file multidimensional array

firemyst
17 Aug 2020, 12:43

Serialize it to JSON, save the JSON to a text file.

Then when you restart and restart your bot/indicator, in the OnStart or Initialize methods, you can read the json back in and convert it back to a 2-dimensional array.

Example code:

//In the OnStart method:

            // read saved file into a string and deserialize JSON to a type
            RobotInfoClass ric = null;
            if (System.IO.File.Exists(_savedFilePath))
            {
                ric = JsonConvert.DeserializeObject<RobotInfoClass>(System.IO.File.ReadAllText(_savedFilePath));
                System.IO.File.Delete(_savedFilePath);  //clean up since we no longer need it
            }

///////////////////////////////////////

//In the OnStop method:

using (System.IO.StreamWriter sw = new System.IO.StreamWriter(_savedFilePath))
                {
                    using (JsonWriter writer = new JsonTextWriter(sw))
                    {
                        RobotInfoClass ric = new RobotInfoClass();
                        ric._positionEntryPricePoints = _positionEntryPricePoints;
                        ric._positionEntryPriceTimes = _positionEntryPriceTimes;
                        ric._breakEvenPoints = _breakEvenPoints;
                        ric._increasePositionSizePoints = _increasePositionSizePoints;
                        //blah blah blah
                        ric._savedTime = DateTime.Now;

                        JsonSerializer serializer = new JsonSerializer();
                        serializer.Formatting = Formatting.Indented;
                        serializer.Serialize(writer, ric);
                    }
                }