SeDes for Serialize & Deserialize

[MGHORBEL]

Hello everyone
I need help please

I am trying to serialize and deserialize but I get this error:

Failed to deserialize. Reason: Unable to find assembly '7f5f4c78bfdb4af6bf14f7058910a2b1, Version=8.0.23.0, Culture=neutral, PublicKeyToken=null'.

Thanks
M.GHORBEL

[NinjaTrader_Jesse]

Hello MGHORBEL,

Thank you for the post.

I took a look at the attached file and it seems that the cast to your custom object in the deserialization is the problem, the type is not able to be found in that context. Unfortunately using serialization is outside of what our support can directly assist with, I can try to gather more details here to see if there is some solution for your use case.

Do you specifically need binary serialization or would any serialization work? Generally items that save data will do so as text or strings, that could include other type of formatting like json.
Also are you trying to serialize an object with your strategies states/workspace? If so a public property can be used in that use case instead of custom serialization. The property would need to make whatever data is to be saved into a string in that use case.


I look forward to being of further assistance.

[MGHORBEL]

Hello NinjaTrader_Jesse
Thank you for your reply

In fact I used this example to illustrate my need to save data.

My need is to save data in any form. The main thing for me is to save, and then download them.

My need concerns the data and the architecture of a neural network. (I don't neet to save strategies states/workspace. )

I tried several times and for several weeks to find a solution.

Can you please give me an example of saving then downloading the data?

M.GHORBEL

[NinjaTrader_Jesse]

Hello MGHORBEL,

Thank you for the clarification. In this case you may need to try other C# methods of serialization from different namespaces, I am unaware of an existing example using binary serialization.

The standard way to serialize data is simply to make a public property in your scripts class however that system works with the platforms saving, for example when you save the workspace. For manual serialization you can find examples of C# ways to do that in external resources. You could try using a json serializer instead to see if that is able to work. The binary formatter is trying to locate the class you made however it would not be able to do that in the NinjaTrader.Custom context. For downloading data you can see the following news indicator which has an example of downloading data. This is not a NinjaScript concept but just a C# concept so this is not something our support or documentation can help with. https://ninjatraderecosystem.com/use.../jteconnews2a/

The NinjaTrader Ecosystem website is for educational and informational purposes only and should not be considered a solicitation to buy or sell a futures contract or make any other type of investment decision. The add-ons listed on this website are not to be considered a recommendation and it is the reader's responsibility to evaluate any product, service, or company. NinjaTrader Ecosystem LLC is not responsible for the accuracy or content of any product, service or company linked to on this website.


Please let me know if I may be of additional assistance.

[skipper-flatiron-18]

If you need JSON serialization / deserialization, the following code worked for me in NT 8. Here is the solution that works for me:

using System.Web.Script.Serialization;

public T DeserializeJson<T>(string Json)
{
    JavaScriptSerializer JavaScriptSerializer = new JavaScriptSerializer();
    return JavaScriptSerializer.Deserialize<T>(Json);
}

public string SerializeJson<T>(T Obj)
{
    JavaScriptSerializer JavaScriptSerializer = new JavaScriptSerializer();
    return JavaScriptSerializer.Serialize(Obj);
}​

See official MS docs at https://learn.microsoft.com/en-us/do...ramework-4.8.1

[MGHORBEL]

Hi skipper-flatiron-18

Thank you for your help.

I find this code in the net and then I used it.

Have a nice day


CODE :

using System;
using System.Collections.Generic;
using System.IO;
using System.Xml.Serialization;


namespace GenericSerialize
{

class SimpleClass
{

const string FileSavePath = @"c:\data\SimpleClass.xml";

public Guid ID { get; set; }
public string CityName { get; set; }
public int Rank { get; set; }
public bool Active { get; set; }
public List<string> RandomList { get; set; }

public SimpleClass()
{
ID = Guid.NewGuid();
RandomList = new List<string>();
}

public void BasicSave()
{
var xs = new XmlSerializer(typeof(SimpleClass));
using (TextWriter sw = new StreamWriter(FileSavePath))
{
xs.Serialize(sw, this);
}
}

public void BasicLoad()
{
var xs = new XmlSerializer(typeof(SimpleClass));
using (var sr = new StreamReader(FileSavePath))
{
var tempObject = (SimpleClass)xs.Deserialize(sr);
ID = tempObject.ID;
CityName = tempObject.CityName;
Rank = tempObject.Rank;
Active = tempObject.Active;
}
}

public bool SaveGeneric1(string fileName)
{
return GenericUtils.Save<SimpleClass>(fileName, this);
}

public void LoadGeneric1(string fileName)
{
var fileData = GenericUtils.Load<SimpleClass>(fileName);
ID = fileData.ID;
CityName = fileData.CityName;
Rank = fileData.Rank;
Active = fileData.Active;
}


public bool SaveGeneric2(string fileName)
{
return GenericUtils.Save2(fileName, this);
}

public void LoadGeneric2(string fileName)
{
var obj = GenericUtils.Load2(fileName);
// TODO .. show implement of reflection call to deep copy object onto self
}

}