(C# UWP/WinRT) JSON: Nested Objects

Here we have a JSON object that contains nested JSON objects. This example demonstrates how to access the contents of the nested objects.

{
  "name": "donut",
  "image":
    {
    "fname": "donut.jpg",
    "w": 200,
    "h": 200
    },
  "thumbnail":
    {
    "fname": "donutThumb.jpg",
    "w": 32,
    "h": 32
    }
}

Chilkat Universal Windows Platform (UWP) / WinRT Downloads Chilkat for the Universal Windows Platform (UWP)

Chilkat.JsonObject json = new Chilkat.JsonObject();

// This is the above JSON with whitespace chars removed (SPACE, TAB, CR, and LF chars).
// The presence of whitespace chars for pretty-printing makes no difference to the Load
// method. 
string jsonStr = "{\"name\": \"donut\",\"image\":{\"fname\": \"donut.jpg\",\"w\": 200,\"h\": 200},\"thumbnail\":{\"fname\": \"donutThumb.jpg\",\"w\": 32,\"h\": 32}}";

bool success = json.Load(jsonStr);
if (success != true) {
    Debug.WriteLine(json.LastErrorText);
    return;
}

// Get the "image" object.
Chilkat.JsonObject imageObj = json.ObjectOf("image");
if (json.LastMethodSuccess == false) {
    Debug.WriteLine("image object not found.");
    return;
}

Debug.WriteLine("image: fname=" + imageObj.StringOf("fname") + ", width=" + Convert.ToString(imageObj.IntOf("w")) + ", height="
     + Convert.ToString(imageObj.IntOf("h")));

// Get the "thumbnail" object.
Chilkat.JsonObject thumbObj = json.ObjectOf("thumbnail");
if (json.LastMethodSuccess == false) {
    Debug.WriteLine("thumbnail object not found.");
    return;
}

Debug.WriteLine("thumbnail: fname=" + thumbObj.StringOf("fname") + ", width=" + Convert.ToString(thumbObj.IntOf("w")) + ", height="
     + Convert.ToString(thumbObj.IntOf("h")));