I have to read a JSON file that is stored locally in my machine but it gives me empty data when I try to access a specific item.

Here's my JSON file structure:

{
    "food": [
      {
        "id": "8a7f65c47cdb33f4017d08fff1fe3cee",
        "rules": [
          
        ], 

    "fruit": "Apple",
    "size": "Large",
    "color": "Red"
}
    ]
}

Here's what I have tried:

        //test.json is the name of my file
        string fileName = "test.json";
        string jsonString = File.ReadAllText(fileName);
        Item item = JsonConvert.DeserializeObject<Item>(jsonString);

        //here I want to print out the fruit "Apple" but it gives me null;
        Console.WriteLine($"Fruit:"   item.fruit);

Item class:

public class Item
{
public string fruit;
public string size;
public string color;
public string id;
public string rules;
}

PS: If I noticed that this code will work only if my data structure is without the "food" block, and it think that is the problem here. Any ideas on how can I fix this?

CodePudding user response：

The item class does not represent the correct structure for your JSON data. You have a root object which contains a property that is a list of another object.

To correctly deserialize your JSON data your class should look something like this:

public class Food
{
    public string id { get; set; }
    public List<object> rules { get; set; }
    public string fruit { get; set; }
    public string size { get; set; }
    public string color { get; set; }
}

public class Root
{
    public List<Food> food { get; set; }
}

You can use