json C# 7 Tuple Support - json

Question

I want to get my C#7 tuple property names in my JSON (Newtonsoft.Json) output.
My problem is:
When I want to convert my tuple to JSON format that not support my parameters names.
For example this is my "Test2" method and you can see the JSON output:
public void Test2()
{
var data = GetMe2("ok");
var jsondata = JsonConvert.SerializeObject(data);//JSON output is {"Item1":5,"Item2":"ok ali"}
}
public (int MyValue, string Name) GetMe2(string name)
{
return (5, name + " ali");
}
The JSON output is "{"Item1":5,"Item2":"ok ali"}" but i want "{"MyValue":5,"Name":"ok ali"}";
This is not impossible because I can get property names in runtime:
foreach (var item in this.GetType().GetMethods())
{
dynamic attribs = item.ReturnTypeCustomAttributes;
if (attribs.CustomAttributes != null && attribs.CustomAttributes.Count > 0)
{
foreach (var at in attribs.CustomAttributes)
{
if (at is System.Reflection.CustomAttributeData)
{
var ng = ((System.Reflection.CustomAttributeData)at).ConstructorArguments;
foreach (var ca in ng)
{
foreach (var val in (IEnumerable<System.Reflection.CustomAttributeTypedArgument>)ca.Value)
{
var PropertyNameName = val.Value;
Console.WriteLine(PropertyNameName);//here is property names of C#7 tuple
}
}
}
}
dynamic data = attribs.CustomAttributes[0];
var data2 = data.ConstructorArguments;
}
}

Answer 1

For the specific case here, it is impossible. That's because SerializeObject has no way of finding out where the tuple came from, all it sees is ValueTuple<int, string>.
The situation would be different if you were serializing an object with tuple properties, in which case SerializeObject could use reflection to find the TupleElementNames attributes (even though it currently doesn't).

Answer 2

The short answer it that tuples don't have properties.
A tuple is a bag of values used, mainly, to return multiple values from a method.
They were never intended to model entities.
The only way to solve your problem, if you don't want to create a type for that, is:
public void Test2()
{
var data = GetMe2("ok");
var jsondata = JsonConvert.SerializeObject(new { data.MyValue, data.Name });//JSON output is {"Item1":5,"Item2":"ok ali"}
}