JavaScriptSerializer and ValueTypes (struct)

Question

For the project, I created several structures in C #. The project itself is an ASP.Net MVC 2 project.

notch:

struct TDummy
{
    private char _value;

    public TDummy(char value)
    {
         this._value = value; // Restrictions
    }
}

I created this because I needed to limit char -variable to a specific number of values. (I could create an Enum, but these values ​​are also used in the database, and then I still need to convert them)

Now I need to create a JsonResult, for example

return Json(new { Value = new TDummy('X') });

But when I do this, I get the result:

{"Value":{}}

I expected to get the result.

{"Value":"X"}

I tried several things, such as TypeConverter (CanConvertTo (string)), Serial type of user type (JavaScriptSerializer.RegisterConverters ()), but either they do not work, or they should return a jso object Complex./p>

{"Value":{"Name":"Value"}}

Any thoughts on this?
I want to serialize value-type as value ...

Answer 1

- , ( ), :

public struct TState
{
   public static TState Active = new TState('A');
   public static TState Pending = new TState('P');

   private char _value;

   public TState(char value)
   {
      switch (value)
      {
         case 'A':
         case 'P':
            this._value = value;  // Known values
            break;
         default:
            this._value = 'A';    // Default value
            break;
      }
   }

   public static implicit operator TState(char value)
   {
      switch (value)
      {
         case 'A':
            return TState.Active;
         case 'P':
            return TState.Pending;
      }
      throw new InvalidCastException();
   }

   public static implicit operator char(TState value)
   {
      return value._value;
   }

   public override string ToString()
   {
      return this._value.ToString();
   }
}

public class Test { public TState Value { get; set; } }

class Program
{
   static void Main(string[] args)
   {
      Test o = new Test();
      o.Value = 'P';               // From Char
      char c = o.Value;            // To Char
      Console.WriteLine(o.Value);  // Writes 'P'
      Console.WriteLine(c);        // Writes 'P'

      JavaScriptSerializer jser = new JavaScriptSerializer();
      Console.WriteLine(jser.Serialize(o));  // Writes '{"Value":{}}'

      Console.ReadLine();
   }
}