Unable to read array data from json file C#

Question

I am trying to read the data from a json file. The file is stored locally and the format data in this file looks like this.

{
"DataToDisplay": [
    {
        "Index Number": "9788189999599",
        "Company Name": "TALES OF SHIVA"

    },
           {
       "Index Number": "9788189999599",
        "Company Name": "TALES OF SHIVA"
    },
    {
       "Index Number": "9788189999599",
        "Company Name": "TALES OF SHIVA"
    }
]

}

I am using following code to read the data. The class structure goes like this.

 public class DataToDisplayClass
{
    [JsonProperty("DataToDisplay")]
    public List< Books> DataToDisplay { get; set; }
}

public class Books
{
    [JsonProperty("Index Number")]
    public string IndexNumber;
    [JsonProperty("Company Name")]
    public string CompanyName;
    
}

And I am trying to read code as below.

   using (StreamReader file = File.OpenText(@"C:/Users/ravin/source/repos/Covalience/Helpers/Samplejson.json"))
        {
            JsonSerializer serializer = new JsonSerializer();
          
            DataToDisplayClass _listOfBooks = (DataToDisplayClass)serializer.Deserialize(file, typeof(DataToDisplayClass));
        }

The object "_listOfBooks" is coming up as null. Not sure what I am doing wrong. Is it the class structure or the way I am reading the data.

[update] Removed white space from file name.

Answer 1

From the C# Documentation :

• By default, fields are ignored. You can include field .
• By default, all public properties are serialized.

So you can convert your fields to properties and it will serialize.

public class Books
{
    [JsonProperty("Index Number")]
    public string IndexNumber { get; set; }
    [JsonProperty("Company Name")]
    public string CompanyName { get; set; }
}