C# Deserialize JSON string into object using Newtonsoft.Json

Question

I am trying to convert a json string to an object using Newtonsoft.json, but I am having some problems with the following conversion. I wonder if some one can explain this. thanks. ``` AddFaceResponse ir = JsonConvert.DeserializeObject<AddFaceResponse>(responseContentStr); ``` this is the json string responseContentStr ``` [{ "faceId": "1fe48282-a3b0-47d1-8fa8-67c4fac3d984", "faceRectangle": { "top": 80, "left": 50, "width": 147, "height": 147 } }] ``` This is my model object. ``` public class AddFaceResponse { public class Face { public class FaceRectangle { public int top, left, width, height; public FaceRectangle(int t, int l, int w, int h) { top = t; left = l; width = w; height = h; } } public string faceId; public FaceRectangle faceRectangle; public Face(string id, FaceRectangle fac) { faceId = id; faceRectangle = fac; } } Face[] faces; public AddFaceResponse(Face[] f) { faces = f; } } ``` this is the error I am getting from visual studio. Newtonsoft.Json.JsonSerializationExcepti…

Accepted Answer

You are deserializing an array into an object. You could get it to work with;

```
var faces = JsonConvert.DeserializeObject<Face[]>(responseContentStr);
```

Or wrap your JSON string with another pair of accolades { }, and add a property;

```
{"faces":[.. your JSON string ..]}
```

C# Deserialize JSON string into object using Newtonsoft.Json

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