I have following method, which is read JSON from the directory and de-serialize the JSON into C# class object.

public static JObject readJson(string fileName)
{
    string JSON = "";
    List<string> keyList = new List<string>();
    using (StreamReader r = new StreamReader(fileName))
    {
        JSON = r.ReadToEnd();
    }
    JObject parsed = JObject.Parse(JSON);
    var name = parsed["2"];
    Numbers deserializedClass = JsonConvert.DeserializeObject<Numbers>(name.ToString());
    return parsed;
} 

Here you can see, I'm used class called Numbers. I'm passing separate JSON file's name to the above method, based on that I also need to pass Class to convert JSON into C# object. How can I pass class to the above method as a generic? then I think I can modify this line,

var deserializedClass = JsonConvert.DeserializeObject<AnyClass>(name.ToString());

is it possible to do?

CodePudding user response：

try this:

public static JObject readJson<T>(string fileName)
    {
        string JSON = "";
        List<string> keyList = new List<string>();
        using (StreamReader r = new StreamReader(fileName))
        {
            JSON = r.ReadToEnd();
        }
        JObject parsed = JObject.Parse(JSON);
        var name = parsed["2"];
        Numbers deserializedClass = JsonConvert.DeserializeObject<T>(name.ToString());
        return parsed;
    }

https://docs.microsoft.com/en-us/dotnet/standard/generics/
https://docs.microsoft.com/en-us/dotnet/csharp/fundamentals/types/generics

CodePudding user response：

This method uses Generics and will take the Type you specify and return the object of that type.

public static T readJson<T>(string fileName)
{
    var JSON = string.Empty;
    using (var r = new StreamReader(fileName))
    {
        JSON = r.ReadToEnd();
    }

    var parsed = JObject.Parse(JSON);
    var name = parsed["2"];
    var deserializedClass = JsonConvert.DeserializeObject<T>(name.ToString());
    return deserializedClass;
}

Usage:

var resultObject = readJson<Number>(fileName);

• https://docs.microsoft.com/en-us/dotnet/csharp/fundamentals/types/generics