This question already has answers here:
Parse JSON in C#
(7 answers)
Closed 7 years ago.
I want to retrieve the values from a Json array in my c# controller. Here's my json array :
{
name : "Name 1",
description : "Description 1",
count : 6
}
How i can retrieve each attribute in my c# controller ? i know how to do it if i deal with Objects but this json is not from a Object.
public IList[] getList(IList[] myList)
{
// How to get the value of the name and the description here ?
}
I will finally create a class with all the attributes i will need and then retrieve them the same way i do with an Object :
CustomClass myClass ;
string name = myClass.name
string description = myClass.description;
int count= myClass.count
...
Related
This question already has answers here:
How can I parse a JSON string that would cause illegal C# identifiers?
(3 answers)
Convert JSON with illegal characters in property name [duplicate]
(1 answer)
Closed 2 years ago.
{
"0": {
"no": "tenon",
"title": "ProdtesterTITLE439",
"stock": 12
},
"success": 1
}
I want to desrialize those json.The problem is I cant create class with name 0 in c sharp.i have tried
[JsonObject(Title = "0")]
and
[DataContract(Name ="0")]
Not one of them are worked.
Good news! Your root object doesn't have a name, so you don't need to create a class with that name. 0 is a property of the root object.
Of course, 0 isn't a valid property name in C# either. That's where JsonPropertyAttribute comes in:
public class RootObject
{
[JsonProperty("0")]
public MyData Data {get;set;}
public bool Success {get;set;}
}
public class MyData
{
public int Stock {get;set;}
// other properties
}
This question already has answers here:
Deserializing just a single node of a JSON response
(2 answers)
Closed 4 years ago.
Using Json.Net on dotnet core v3 preview.
The json looks similar to:
{
"rootElement": {
"id": 500,
"name": "water balloon"
}
}
I would like to deserialize this into an object that looks like:
public class Item {
public int id {get;set;}
public string name {get;set;}
}
instead of the much more annoying:
public class ItemWrapper {
public Item rootElement {get;set;}
}
This is obviously a contrived example, but it illustrated the problem. The actual Item class is far more complicated. And there are many of them. So I'm trying to identify a solution that will work for any json document that has this general format with a root node followed by the object I am actually interested in.
Any thoughts?
You can use JObject.Parse from Newtonsoft.Json.Linq namespace, and get your item like so:
var obj = JObject.Parse("json");
var item = obj["rootElement"].ToObject<Item>();
This question already has answers here:
Deserialize json that has some property name starting with a number
(2 answers)
Closed 5 years ago.
I need to parse JSON file in C# code by using JSON.net (Newtonsoft)
But json file I receive begins as this:
{"3h":3}
the variable name begins with number but c# can't do like this.
How can I set the value in the right way? Should I swap the variable name by my self? That would make very dirty code.
Thank you.
You can do this little focus with mapping:
class Program
{
static void Main(string[] args)
{
string jsonInput = #"{""3h"":3}";
var result = (myJsonObj)JsonConvert.DeserializeObject<myJsonObj>(jsonInput);
Console.WriteLine(result.MyProperty);
}
}
public class myJsonObj
{
[JsonProperty(PropertyName = "3h")]
public string MyProperty { get; set; }
}
This question already has answers here:
How to handle both a single item and an array for the same property using JSON.net
(9 answers)
Closed 6 years ago.
I have a defined C# object based off a very complex JSON I'm getting from a third party API. Here's a piece of it:
{"alarmSummary":"NONE"}
The corresponding property in C# would be:
public string alarmSummary {get; set;}
And I would get this converted by using my typical JSONConvert from JSON.NET:
var alarms = JSONConvert.DeserializeObject<MyClass>(jsonString);
However, the API will put alarms in this format, as an array, and "NONE" when there aren't any as a string:
{"alarmSummary" : ["AHHH Something went wrong!!", "I'm on fire!!"]}
Which means in C# it would need to be:
public string[] alarmSummary {get; set;}
If I could, I would just have the JSONConvert deserialize the "NONE" string into an array of just one entry. Is there a way to set conditions on this property, or will I have to take the whole complex JSON string and hand convert it?
This one should be easy - you can set your alarmSummary as object and then have separate property that evaluates alarmSummary and returns null or array depending on the value.
public object alarmSummary { get; set; }
protected string[] alarmSummaryCasted
{
get
{
if (alarmSummary is String)
return null;
else
return (string[]) alarmSummary;
}
}
If you are expecting only those two combinations, you could make use of the dynamic keyword and check deserialized object:
string json = "{\"alarmSummary\":\"NONE\"}";
//string json = "{\"alarmSummary\" : [\"AHHH Something went wrong!!\", \"I'm on fire!!\"]}";
string[] alarmSummary;
dynamic obj = JsonConvert.DeserializeObject(json);
if (obj.alarmSummary.Type == JTokenType.Array)
alarmSummary = obj.alarmSummary.ToObject<string[]>();
else
alarmSummary = new[] { (string)obj.alarmSummary.ToObject<string>() };
This question already has answers here:
How can I parse a JSON string that would cause illegal C# identifiers?
(3 answers)
Closed 8 years ago.
I have to deserialize an JSON object array that contains a colon in root object name.
Does anyone know if I can achieve this somehow with colon in list definition?
public List<Customers> ngcp:customers { get; set; }
No, the proper way to do this would be to specify the name using an attribute or other method supported by json.net.
[JsonProperty(PropertyName = "ngcp:customers")]
public List<Customers> Customers { get; set; }