Convert JSON object to a list of objects C#

Question

I have a web api service that converts JSON object to a specific list:

here is the model class:

public class rest_all_data
{
    public string RestaurantName { get; set; }
    public string CategoryName { get; set; }
    public string FourSquareID { get; set; } 
}


public class rest_collection 
{
    public List<rest_all_data> rest_all_data { get; set; }
}

and here is the service:

public void AddRestaurantMultiple([FromBody] JObject rest_all)
{
    string k = rest_all.ToString();
    rest_collection result = new System.Web.Script.Serialization.JavaScriptSerializer().Deserialize<rest_collection>(k); 
}

and here is the json object:

"restaurants" : [{"RestaurantName":"a","CategoryName":"b","FourSquareID":"c"},{"RestaurantName":"d","CategoryName":"e","FourSquareID":"f"}]

the rest_all object always comes with data and the k string is also a success but the result variable is always null...

Why are you calling JObject.ToString? It seems odd to format the JSON only to parse it again... And what does the JSON look like? — Jon Skeet
– Jon Skeet, Commented Aug 12, 2015 at 12:53
here what the json object looks like "restaurants" : [{"RestaurantName":"a","CategoryName":"b","FourSquareID":"c"},{"RestaurantName":"d","CategoryName":"e","FourSquareID":"f"}] — Abdallah
– Abdallah, Commented Aug 12, 2015 at 12:56
Put it in the question, preferably making the whole thing a short but complete program demonstrating the problem, just like I asked you to last time... — Jon Skeet
– Jon Skeet, Commented Aug 12, 2015 at 12:58
@JonSkeet...i added it...do u have any solution to my problem? — Abdallah
– Abdallah, Commented Aug 12, 2015 at 13:21
Well you haven't added a short but complete program demonstrating the problem, and that JSON isn't an object - it doesn't start with { and end with }. Oh, and then there's the matter that your collection seems to be called restaurants, not rest_all_data. — Jon Skeet
– Jon Skeet, Commented Aug 12, 2015 at 13:32

tutorialplus.net · Accepted Answer · 2015-08-12 13:19:53Z

1

try it i have made few changes in your code

    public class rest_collection
    {
        public IEnumerable<rest_all_data> rest_all_datas { get; set; }
    }

    public void AddRestaurantMultiple([FromBody] JObject rest_all)
    {
        string k = rest_all.ToString();
        JavaScriptSerializer serializer = new JavaScriptSerializer();
        rest_collection collection = serializer.Deserialize<rest_collection>(k);
    }

answered Aug 12, 2015 at 13:19

tutorialplus.net

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Comments

Amit Kumar Ghosh · Accepted Answer · 2015-08-12 12:58:29Z

0

try:

public void AddRestaurantMultiple([FromBody] string rest_all)
{
    var obj = JsonConvert.DeserializeObject<rest_collection>(rest_all);
}

answered Aug 12, 2015 at 12:58

Amit Kumar Ghosh

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