I need to fetch some values obtained from an web URL. The JSON is as given:
{"country":{"name":"India","State":"Raj": Count :239}, "Population": 25487}
Now i want to fetch the value of Count and Population using C#.
I have tried using JavaScriptSerializer(); But the problem is that its response time is much much slower.
Please suggest me a way to fetch the values from this JSON string.
Thanks
I personally use
https://github.com/ServiceStack/ServiceStack.Text
It's a very fast JSON serializer/deserializer.
I usually create an extension method to make the code tidier:
public static string ToJson(this object _obj)
{
return JsonSerializer.SerializeToString(_obj);
}
Edit:
A quick way to fetch those values would be to create a class of the data:
public class Country
{
public string name { get; set; }
public string State { get; set; }
public int Count { get; set; }
}
public class CountryInformation
{
public Country Country { get; set; }
public int Population { get; set; }
}
Then, using ServiceStack:
void SomeFunction(string _Json)
{
var FeedResult = _Json.FromJson<CountryInformation>();
}
You can then get the values from FeedResult as such:
FeedResult.Country.name;
ToJson<T>() and FromJson<T>() extension methods :)
the problem is that its response time is much much slower.Please suggest me a way to fetch the values from this JSON string to Sir can you please write c# code for me[] brackets, you'll want to use json.FromJson<CountryInformation[]>() instead.One option is to use Json.NET - http://json.codeplex.com/
I normally recommend using typed POCO's like @misterjingo suggested. However for one-off tasks you can use ServiceStack's Json Serializer to parse it dynamically like:
var json = "{\"country\":{\"name\":\"India\",\"State\":\"Raj\": \"Count\": 239}, \"Population\": 25487}";
var jsonObj = JsonObject.Parse(json);
var country = jsonObj.Object("country");
Console.WriteLine("Country Name: {0}, State: {1}, Count: {2} | Population: {3}",
country["name"], country["State"], country["Count"], jsonObj["Population"]);
//Outputs:
//Country Name: India, State: Raj, Count: 239 | Population: 25487
Note: the JSON spec requires an object property name to be a string which is always double quoted.
ServiceStack's JsonSerializer is also the fastest Json Serializer for .NET much faster than other Json Serializers.
You could also use the newer DataContractJsonSerializer class to work with JSON data.
You can either use DataContractSerialiser (ideally if you create the feed) and if you have a tricky malformed json string use JSON.net as it gives you linq2json to parse through it one node at a time.
