Question 110590 in Json Question posted in
Our archive of expertly curated questions and answers provides insights and solutions to common problems related to this popular data interchange format. From parsing and manipulating JSON data to integrating it with various programming languages and web services, our archive has got you covered. Start exploring today and take your JSON skills to the next level

Json – How to convert key value from result to uppercase in an ASP.NET Core 3.1 Web API

Model class:

public class User
{
    public string NS_ID { get; set; }
    public string TONV_ABC { get; set; }
    public string NAME_ABC { get; set; }
    public string MAABC { get; set; }
}

Result json when testing in Postman:

    "nS_ID": "",
    "tonV_ABC": "",
    "namE_ABC": "",
    "maabc": "F02",

This is the result I want:

    "NS_ID": "",
    "TONV_ABC": "",
    "NAME_ABC": "",
    "MAABC": "F02",

This is my API:

    [HttpGet]
    [Route("test")]
    public ActionResult test()
    {
        User u = new User();
        u.NS_ID = "";
        u.TONV_ABC = "";
        u.NAME_ABC = "";
        u.MAABC = "F02";
        return Ok(u);
    }

Please help me

I try convert but it’s not working

Tags:

2

Answers


  1. 0

    You can try to deserialize the JSON string to a Dictionary<string, object>. then create another Dictionary. iterate over the first dictionary and add all the key-value pairs to the new dictionary why making the key to upper case using the ToUpper() method. then serialize the new dictionary to the JSON string.

    Sample code:

    Dictionary<string, object> jsonDictionary = JsonConvert.DeserializeObject<Dictionary<string, object>>(jsonString);
Dictionary<string, object> result = new Dictionary<string, object>();
foreach (KeyValuePair<string, object> kvp in jsonDictionary)
{
    result.Add(kvp.Key.ToUpper(), kvp.Value);
}
string resultJson = JsonConvert.SerializeObject(result);

    Note: I have used NewtonSoft.json. you can get it from the Nuget package manager.

    Login or Signup to reply.
  2. 0

    .net 7: You just need to add the following configuration to Program.cs:

    builder.Services.AddControllers()
    .AddJsonOptions(options =>
    {
         options.JsonSerializerOptions.PropertyNamingPolicy = null;
    });

    .net core 3.1:

    add the following configuration to startup.cs 🙁ConfigureServices(IServiceCollection services))

    services.AddControllers()
    .AddJsonOptions(options =>
    {
        options.JsonSerializerOptions.PropertyNamingPolicy= null;
    );
    Login or Signup to reply.
Please signup or login to give your own answer.

Back To Top
Search