Json.NET Not serializing to file

Question

Even using an example from the Documentation, I still can't find a way to successfully serialize to a file.

Code:

Program.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Newtonsoft.Json;
using System.IO;
using System.Threading;

namespace TestProject
{
    class Program
    {
        static void Main(string[] args)
        {
            Item i = new Item
            {
                Username = "user",
                Email = "[email protected]",
                Password = "password"
            };


            File.WriteAllText(@"C:\users\user1.json", JsonConvert.SerializeObject(i));

            using (StreamWriter file = File.CreateText(@"C:\users\user1.json"))
            {
                JsonSerializer serializer = new JsonSerializer();
                serializer.Serialize(file, i);
            }

        }
    }
}

Item.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace TestProject
{
    public class Item
    {
        public string Email { get; set; }
        public string Password { get; set; }
        public string Username { get; set; }
    }
}

When I run Program.cs, it shows no errors, but the JSON does not show in the file.

You're writing to the same file twice, which makes it hard to tell which part is failing; have you tried assigning JsonConvert.SerializeObject(i) to a variable and checking it during debugging? — adamdc78
– adamdc78, Commented Nov 25, 2015 at 3:18
Yeah users is a protected folder... And it's not going to always be c:\users for everyone.. E.g. my users folder is on p:\os\users and my temp folder is p:\temp.. and my OS is on c:\ e.g. c:\windows. Long story short you should use environment variables, e.g. @"%homepath%\user.json" which would put it in c:\users\user1\user.json in your example "the current logged in user's user folder" — Ryan Mann
– Ryan Mann, Commented Nov 25, 2015 at 3:31
Sorry, the "users" folder was supposed to be for the database, not the system's users. I forgot that Windows contains a Users folder at the root of the C: drive. Sorry for the confusion. — UnoriginalNameHere
– UnoriginalNameHere, Commented Nov 25, 2015 at 20:43

Jason Gerard · Accepted Answer · 2015-11-25 03:26:48Z

1

When I run your code I get a an exception writing to the users folder. Changing to my home folder works fine. I suspect this is your problem.

Addtionally, you're writing the file twice. The first time is showing an example of using the SerializeObject method to get a string back which is used with WriteAllText. The second block of code is using a StreamWriter. For your purposes, both are equivalent and you only need to use one or the other.

answered Nov 25, 2015 at 3:26

Jason Gerard

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Comments

kcwu · Accepted Answer · 2015-11-25 03:25:50Z

0

        using (StreamWriter file = File.CreateText(@"C:\users\user1.json"))
        {
            var jsonResult = JsonConvert.SerializeObject(i);
            file.WriteLine(jsonResult);
        }

edited Nov 25, 2015 at 3:25

answered Nov 25, 2015 at 3:20

kcwu

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1 Comment

adamdc78 Over a year ago

newtonsoft.com/json/help/html/… You're rewriting the method being called.

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