CODEWITHSUNDEEP
c#jsonserializationdeserialization
B B
B B

Reputation: 131

Serialize and deserialize a class constructor values with JSON

EDIT: I finally managed to write into the file and solved the error, however it does not update the bools, I mean I changed the flag values while program is running, yet it does not change the values.

Main class does not see the changes of flags.

I want to save and reload the class boolean variables where it is left off, I tried to use JSON to write and read variables to txt file. However, neither the code creates a txt file nor writes in it.

(I have a button that changes the values of flags)

I am so confused and I don't know what to do. Can you please help me? 

using Newtonsoft.Json; using System.Web.Script.Serialization;

EDITED CODE

[Serializable]
[JsonObject(MemberSerialization.OptIn)]
class Class1
{
 public bool flag;
 public bool flag2;
 public Class1()
 {
  flag = false;
  flag2 = false;
 }
}

[Serializable]
public partial class Form1 : Form
{

 public Form1()
 {
   InitializeComponent();

 }
 Class1 c1 = new Class1();
 private void Button1_Click(object sender, EventArgs e)
 {
    c1.flag = true;
    c1.flag2 = true;
    Console.WriteLine("Flag changed: " + c1.flag);
    Console.WriteLine("Flag2 changed: " + c1.flag2);
  }

[STAThread]
static void Main()
{
  Application.EnableVisualStyles();
  Application.SetCompatibleTextRenderingDefault(false);
  Application.Run(new Form1());

  Class1 c1 = new Class1();
  string json = JsonConvert.SerializeObject(c1);

  Console.WriteLine(json);
  File.WriteAllText("path.txt", json);

  string json2 = File.ReadAllText("path.txt");
  Form1 f2 = JsonConvert.DeserializeObject<Form1>(json2);
  Console.WriteLine(json2);

Upvotes: 1

Views: 385

Answers (1)

misterfrb
misterfrb

Reputation: 305

Your code tries to serialize to much information (it tries to serialize members of the Form class). You should call JsonConvert.SerializeObject(f), and use opt-in serialization so you can control easily which members are serialized.

Upvotes: 1

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