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(Xojo Plugin) JSON: Nested ObjectsHere 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 } }
Dim json As 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. Dim jsonStr As String jsonStr = "{""name"": ""donut"",""image"":{""fname"": ""donut.jpg"",""w"": 200,""h"": 200},""thumbnail"":{""fname"": ""donutThumb.jpg"",""w"": 32,""h"": 32}}" Dim success As Boolean success = json.Load(jsonStr) If (success <> True) Then System.DebugLog(json.LastErrorText) Return End If // Get the "image" object. Dim imageObj As Chilkat.JsonObject imageObj = json.ObjectOf("image") If (json.LastMethodSuccess = False) Then System.DebugLog("image object not found.") Return End If System.DebugLog("image: fname=" + imageObj.StringOf("fname") + ", width=" + Str(imageObj.IntOf("w")) + ", height=" _ + Str(imageObj.IntOf("h"))) // Get the "thumbnail" object. Dim thumbObj As Chilkat.JsonObject thumbObj = json.ObjectOf("thumbnail") If (json.LastMethodSuccess = False) Then System.DebugLog("thumbnail object not found.") Return End If System.DebugLog("thumbnail: fname=" + thumbObj.StringOf("fname") + ", width=" + Str(thumbObj.IntOf("w")) + ", height=" _ + Str(thumbObj.IntOf("h"))) |
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