CODEWITHSUNDEEP
c#json.net
Nevi
Nevi

Reputation: 328

JSON Error converting value to type

It gives me error when deserializing this JSON File

{
  "checkOut": "10:30",
  "stars": 4,
  "locationId": 953,
  "propertyType": 6,
  "checkIn": "15:00",
  "trustyou": {
    "languageSplit": [
      {
        "tripTypeSplit": [
          {
            "type": "family",
            "percentage": 85
          },
          {
            "type": "couple",
            "percentage": 15
          }
        ],
        "name": "de",
        "percentage": 100
      }
    ],
    "location": [

    ],
    "reviewsCount": 83,
    "popularity": 0,
    "tripTypeSplit": [
      {
        "type": "family",
        "percentage": 86
      },
      {
        "type": "couple",
        "percentage": 14
      }
    ],
    "sentimentScoreList": [
      {
        "categoryId": "14",
        "ratio": "Good",
        "shortText": "Great location",
        "name": "Location",
        "subcategories": [

        ],
        "highlights": [
          {
            "text": "Beautiful location",
            "confidence": 100
          }
        ],
        "reviewCount": 14,
        "score": 100
      },
      {
        "categoryId": "111",
        "ratio": "Good",
        "shortText": "Rather comfortable",
        "name": "Comfort",
        "subcategories": [
        ],
        "highlights": [

        ],
        "reviewCount": 5,
        "score": 100
      },

I have the following classes for this JSON

public class Root
    {

        [JsonProperty("checkIn")]
        public string CheckIn { get; set; }

        [JsonProperty("distance")]
        public double Distance { get; set; }

        [JsonProperty("hidden")]
        public bool Hidden { get; set; }

        [JsonProperty("trustyou")]
        public Trustyou Trustyou { get; set; }

        [JsonProperty("amenitiesV2")]
        public AmenitiesV2 AmenitiesV2 { get; set; }

        [JsonProperty("hasAirbnb")]
        public bool HasAirbnb { get; set; }

        [JsonProperty("checkOut")]
        public string CheckOut { get; set; }

        [JsonProperty("popularity")]
        public int Popularity { get; set; }

        [JsonProperty("name")]
        public string Name { get; set; }

        [JsonProperty("id")]
        public int Id { get; set; }

        [JsonProperty("cntRooms")]
        public int CntRooms { get; set; }

What seems to be the problem? i'm deserializing this using

    string resp2 = await client.GetStringAsync("");
    var hotelDetails = JsonConvert.DeserializeObject<IDictionary<string, HotelsDescriptionAPI.Root>>(resp2, new JsonSerializerSettings { NullValueHandling = NullValueHandling.Ignore });
    foreach (var hoteldesc in hotelDetails)
    {
        MessageBox.Show(hoteldesc.Value.Id);
    }

and the exact error is 

"Error converting value 24545 to type and  Error converting value "10:30" to type 'HotelsDescriptionAPI.Root'. Path 'checkOut', line 1, position 19."

Im trying to get the value of "Id", What could be the problem with my code?

Upvotes: 1

Views: 23590

Answers (3)

Smuckwell
Smuckwell

Reputation: 1

It does not seem to apply to your scenario, but note that when you do have JSON that is an array (root level children are array items, not properties), you may have to change the root object to subclass a compatible type.

For example:

public class RootObject : List<ChildObject>
{
}

public class ChildObject
{
    public string Property1 { get; set; }
    public string Property2 { get; set; }
}

Upvotes: 0

InsideTrack
InsideTrack

Reputation: 241

For people that this does not help, and that are not using Entity Framework and or writing the domain classes by hand - make sure all your class properties match what is coming out of your data source in the same exact field order.

Upvotes: -1

Rob
Rob

Reputation: 27357

Your deserialization code should be:

var hotelDetails = JsonConvert.DeserializeObject<HotelsDescriptionAPI.Root>(resp2, 
                   new JsonSerializerSettings { 
                       NullValueHandling = NullValueHandling.Ignore 
                   });

You're trying to deserialize it into a dictionary of string,Root, when the object itself is simply Root.

Upvotes: 5

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