Impossible de convertir l'objet de type 'Newtonsoft.Json.Linq.JArray' de type 'System.Les Collections.Génériques.Liste"

l am de la lecture des données à partir d'un webservice. L'objet json ressemble:

var goldString = [  
{  
"date":"20151109",
"day":30,
"month":"November",
"year":2015,
"club":9,
"clubName":"Flamingo",
"itw":"XYD",
"races":{  
"1":{  
"race":1,
"time":"12:20",
"raceStatus":"Undecided",
"reference":91,
"name":"WELCOME TO FLAMINGO PARK MAIDEN PLATE",
"description":"For Maidens",
"distance":1000,
"stake":"R46,000",
"stakes":"1st: R28,750 | 2nd: R9,200 | 3rd: R4,600 | 4th: R2,300 | 5th: R1,150",
"surface":"Sand",
"going":"\u0000",
"goingDescription":"",
"grade":0,
"division":"MDNM",
"group":"G",
"class":"MAIDEN PLATE",
"condition":"For Maidens",
"handicap":false,
"minWins":0,
"maxWins":0,
"minAge":"n\/a",
"maxAge":"n\/a",
"gender":"n\/a",
"runners":[  
]
},
"2":{  
"race":2,
"time":"12:50",
"raceStatus":"Undecided",
"reference":92,
"name":"RACING. IT'S A RUSH PINNACLE STAKES",
"description":"Open",
"distance":1800,
"stake":"R66,000",
"stakes":"1st: R41,250 | 2nd: R13,200 | 3rd: R6,600 | 4th: R3,300 | 5th: R1,650",
"surface":"Sand",
"going":"\u0000",
"goingDescription":"",
"grade":0,
"division":"PINN",
"group":"A",
"class":"PINNACLE STAKES",
"condition":"Open",
"handicap":false,
"minWins":"n\/a",
"maxWins":"n\/a",
"minAge":"n\/a",
"maxAge":"n\/a",
"gender":"n\/a",
"runners":[  
]
},
"3":{  
"race":3,
"time":"13:20",
"raceStatus":"Undecided",
"reference":93,
"name":"INTERNATIONAL JOCKEYS' CHALLENGE 14 NOVEMBER MAIDEN PLATE",
"description":"For Maidens",
"distance":1800,
"stake":"R46,000",
"stakes":"1st: R28,750 | 2nd: R9,200 | 3rd: R4,600 | 4th: R2,300 | 5th: R1,150",
"surface":"Sand",
"going":"\u0000",
"goingDescription":"",
"grade":0,
"division":"MDNM",
"group":"G",
"class":"MAIDEN PLATE",
"condition":"For Maidens",
"handicap":false,
"minWins":0,
"maxWins":0,
"minAge":"n\/a",
"maxAge":"n\/a",
"gender":"n\/a",
"runners":[  
]
},
"4":{  
"race":4,
"time":"13:50",
"raceStatus":"Undecided",
"reference":94,
"name":"SOCCER 6 MR 65 HANDICAP",
"description":"Open",
"distance":1600,
"stake":"R43,000",
"stakes":"1st: R26,875 | 2nd: R8,600 | 3rd: R4,300 | 4th: R2,150 | 5th: R1,075",
"surface":"Sand",
"going":"\u0000",
"goingDescription":"",
"grade":0,
"division":"MR65",
"group":"E",
"class":"MR 65 HANDICAP",
"condition":"Open",
"handicap":true,
"minWins":"n\/a",
"maxWins":"n\/a",
"minAge":"n\/a",
"maxAge":"n\/a",
"gender":"n\/a",
"runners":[  
]
},
"5":{  
"race":5,
"time":"14:20",
"raceStatus":"Undecided",
"reference":95,
"name":"COMPUTAFORM EXPRESS MR 72 HANDICAP",
"description":"Open",
"distance":1400,
"stake":"R46,000",
"stakes":"1st: R28,750 | 2nd: R9,200 | 3rd: R4,600 | 4th: R2,300 | 5th: R1,150",
"surface":"Sand",
"going":"\u0000",
"goingDescription":"",
"grade":0,
"division":"MR72",
"group":"D",
"class":"MR 72 HANDICAP",
"condition":"Open",
"handicap":true,
"minWins":"n\/a",
"maxWins":"n\/a",
"minAge":"n\/a",
"maxAge":"n\/a",
"gender":"n\/a",
"runners":[  
]
},
"6":{  
"race":6,
"time":"14:55",
"raceStatus":"Undecided",
"reference":96,
"name":"RACING ASSOCIATION FM 67 HANDICAP (F & M)",
"description":"For Fillies and Mares",
"distance":1400,
"stake":"R46,000",
"stakes":"1st: R28,750 | 2nd: R9,200 | 3rd: R4,600 | 4th: R2,300 | 5th: R1,150",
"surface":"Sand",
"going":"\u0000",
"goingDescription":"",
"grade":0,
"division":"FM67",
"group":"E",
"class":"FM 67 HANDICAP (F & M)",
"condition":"For Fillies and Mares",
"handicap":true,
"minWins":"n\/a",
"maxWins":"n\/a",
"minAge":"n\/a",
"maxAge":"n\/a",
"gender":"female",
"runners":[  
]
},
"7":{  
"race":7,
"time":"15:25",
"raceStatus":"Undecided",
"reference":97,
"name":"SOCCER GG MR 66 HANDICAP",
"description":"Open",
"distance":1200,
"stake":"R43,000",
"stakes":"1st: R26,875 | 2nd: R8,600 | 3rd: R4,300 | 4th: R2,150 | 5th: R1,075",
"surface":"Sand",
"going":"\u0000",
"goingDescription":"",
"grade":0,
"division":"MR66",
"group":"E",
"class":"MR 66 HANDICAP",
"condition":"Open",
"handicap":true,
"minWins":"n\/a",
"maxWins":"n\/a",
"minAge":"n\/a",
"maxAge":"n\/a",
"gender":"n\/a",
"runners":[  
]
},
"8":{  
"race":8,
"time":"15:55",
"raceStatus":"Undecided",
"reference":98,
"name":"BOOK A TABLE 011 6811702 MR 84 HANDICAP",
"description":"Open",
"distance":1000,
"stake":"R55,000",
"stakes":"1st: R34,375 | 2nd: R11,000 | 3rd: R5,500 | 4th: R2,750 | 5th: R1,375",
"surface":"Sand",
"going":"\u0000",
"goingDescription":"",
"grade":0,
"division":"MR84",
"group":"C",
"class":"MR 84 HANDICAP",
"condition":"Open",
"handicap":true,
"minWins":"n\/a",
"maxWins":"n\/a",
"minAge":"n\/a",
"maxAge":"n\/a",
"gender":"n\/a",
"runners":[  
]
},
"9":{  
"race":9,
"time":"16:30",
"raceStatus":"Undecided",
"reference":99,
"name":"NEXT FLAMINGO PARK RACE MEETING IS MONDAY 16 NOV FM 60 HANDICAP (F & M)",
"description":"For Fillies and Mares",
"distance":1000,
"stake":"R43,000",
"stakes":"1st: R26,875 | 2nd: R8,600 | 3rd: R4,300 | 4th: R2,150 | 5th: R1,075",
"surface":"Sand",
"going":"\u0000",
"goingDescription":"",
"grade":0,
"division":"FM60",
"group":"F",
"class":"FM 60 HANDICAP (F & M)",
"condition":"For Fillies and Mares",
"handicap":true,
"minWins":"n\/a",
"maxWins":"n\/a",
"minAge":"n\/a",
"maxAge":"n\/a",
"gender":"female",
"runners":[  
]
}
}
}
]

public RunOns DeserializeAccountRunOns(string json)
{
var myClass = new JavaScriptSerializer().Deserialize(json);
retour (RunOns)maclasse;
}

public class RunOns
{
public PubRunOns runons { get; set; }
}

public class PubRunOns
{
public string date { get; set; }
public int day { get; set; }
public string month { get; set; }
public int year { get; set; }
public int club { get; set; }
public string clubName { get; set; }
public string itw { get; set; }
public Array races { get; set; }        
public static PubRunOns CreateFromData(string[] data)
{
return new PubRunOns
{
date = data[0],
day = Convert.ToInt32(data[1]),
month = data[2],
year = Convert.ToInt32(data[3]),
club = Convert.ToInt32(data[4]),
clubName = data[5],
itw = data[6],               
races = data[7].ToCharArray()
};
}        
}
public class Races
{
public int race { get; set; }
public string time { get; set; }
public string raceStatus { get; set; }
public int reference { get; set; }
public string name { get; set; }
public string description { get; set; }
public int distance { get; set; }
public string stake { get; set; }
public string stakes { get; set; }
public string going { get; set; }
public List<Runner> Runners { get; set; }        
}
public class Runner
{
public int draw { get; set; }
public int saddle { get; set; }      
public string Name { get; set; }
public string sex { get; set; }
public string colour { get; set; }
public int age { get; set; }
}

si l appel de la fonction:

var test=  DeserializeAccountRunOns(goldString);

l obtenez une exception:
Impossible de convertir l'objet de type 'System.Object[]'de type "MyProject.Class"
Des Idées? Je vous remercie à l'avance.

Votre JSON est une Liste (Array) pas d'Objet donc, premier Problème, c'est que vous êtes en jetant un JSON Liste (Array) à une Classe d'Objet.
si l'on change le RunOns myClass = new JavaScriptSerializer().Désérialiser<RunOns>(json); l reçois toujours un message d'erreur "MyPropert n'est pas pris en charge pour la désérialisation d'un tableau."

InformationsquelleAutor Muzingaye | 2015-11-09

asp.net-mvc-4 c#c#-4.0 json json.net

JArray jsonResponse = JArray.Parse(goldString);
foreach (var item in jsonResponse)
{
JObject jRaces = (JObject)item["races"];
foreach (var rItem in jRaces)
{
string rItemKey = rItem.Key;
JObject rItemValueJson = (JObject)rItem.Value;
Races rowsResult = Newtonsoft.Json.JsonConvert.DeserializeObject<Races>(rItemValueJson.ToString());
}
}

InformationsquelleAutor Krunal Mevada

Pourrait essayer avec:

JArray jsonResponse = JArray.Parse(goldString);
foreach (var item in jsonResponse)
{
foreach (var rItem in jRaces)
{
string rItemKey = rItem.Key;
JObject rItemValueJson = (JObject)rItem.Value;
Races rowsResult = item.Value<JObject>("races").ToObject<Races>();
}
}

InformationsquelleAutor Luis Felipe Diaz Valbuena

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