Why is the Json deserializer not working?

May 24, 2024

I’m quite new to Json files and Blazor, and I was trying to deserialize a Json string, but when I try to fill a list with objects obtained via deserializer the list is full of null objects.
I’m also using Flurl, I don’t know if it’s of any relevance, but I’ll just mention it to be sure.

The string I’m deserializing is this one :

[{"id":1,"description":"DASHBOARD","position":0,"enabled":true,"itemSections":[],"users":[]},{"id":6,"description":"Accounting","position":0,"enabled":true,"itemSections":[],"users":[]},{"id":7,"description":"Anti-avoidance obligations","position":0,"enabled":true,"itemSections":[],"users":[]},{"id":8,"description":"Personal data","position":0,"enabled":true,"itemSections":[],"users":[]},{"id":9,"description":"Date","position":0,"enabled":true,"itemSections":[],"users":[]},{"id":10,"description":"Balance","position":0,"enabled":true,"itemSections":[],"users":[]},{"id":11,"description":"Communication","position":0,"enabled":true,"itemSections":[],"users":[]},{"id":12,"description":"F24 - F23 and communications","position":0,"enabled":true,"itemSections":[],"users":[]},{"id":13,"description":"Management","position":0,"enabled":true,"itemSections":[],"users":[]},{"id":14,"description":"StudyOK","position":0,"enabled":true,"itemSections":[],"users":[]},{"id":15,"description":"730","position":0,"enabled":true,"itemSections":[],"users":[]},{"id":16,"description":"770","position":0,"enabled":true,"itemSections":[],"users":[]},{"id":17,"description":"Fees","position":0,"enabled":true,"itemSections":[],"users":[]},{"id":18,"description":"Certification","position":0,"enabled":true,"itemSections":[],"users":[]},{"id":19,"description":"IMU","position":0,"enabled":true,"itemSections":[],"users":[]},{"id":20,"description":"ISA","position":0,"enabled":true,"itemSections":[],"users":[]},{"id":21,"description":"IVA","position":0,"enabled":true,"itemSections":[],"users":[]},{"id":22,"description":"PF","position":0,"enabled":true,"itemSections":[],"users":[]},{"id":23,"description":"SC","position":0,"enabled":true,"itemSections":[],"users":[]},{"id":24,"description":"SP","position":0,"enabled":true,"itemSections":[],"users":[]},{"id":25,"description":"Widget","position":0,"enabled":true,"itemSections":[],"users":[]}]

This is the code :

var tokenTrimmed = token2.Split("\"token\":\"")[1].Split('"')[0].Trim();
result = await url.WithOAuthBearerToken(tokenTrimmed).GetStringAsync();

var jsonDocument = JsonDocument.Parse(result);


Console.WriteLine(jsonDocument.RootElement.ToString());

items = JsonSerializer.Deserialize<List<GridList>>(jsonDocument.RootElement);

This is the GridList Class :

@code {
    public int Id { get; set; }
    public string Description { get; set; }
    public int Position { get; set; }
    public bool Enabled { get; set; }
    public List<string> ItemSections { get; set; }
    public List<string> Users { get; set; }
}

And this is what I get: They are all the same

>Solution :

So to summarize:

var options = new JsonSerializerOptions
{
    PropertyNameCaseInsensitive = true,
});

var result = JsonSerializer.Deserialize<List<GridList>>(yourJsonAsString, options);