Chilkat Examples

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Xojo Plugin Examples

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(Xojo Plugin) JSON: Array of Objects

Here we have a JSON object that contains an array, where each element in the array is a JSON object. This example demonstrates how to access the objects contained within an array.

{ 
  "employees":[
    {"firstName":"John", "lastName":"Doe"},
    {"firstName":"Anna", "lastName":"Smith"},
    {"firstName":"Peter","lastName":"Jones"}
  ]
}

Chilkat Xojo Plugin Download

Xojo Plugin for Windows, Linux, Mac OS X, and ARM

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 = "{""employees"":[{""firstName"":""John"", ""lastName"":""Doe""},{""firstName"":""Anna"", ""lastName"":""Smith""},{""firstName"":""Peter"",""lastName"":""Jones""}]}"

Dim success As Boolean
success = json.Load(jsonStr)
If (success <> True) Then
    System.DebugLog(json.LastErrorText)
    Return
End If

// Get the "employees" array.
Dim employees As Chilkat.JsonArray
employees = json.ArrayOf("employees")
If (json.LastMethodSuccess = False) Then
    System.DebugLog("employees member not found.")
    Return
End If

// Iterate over each employee, getting the JSON object at each index.
Dim numEmployees As Int32
numEmployees = employees.Size
Dim i As Int32
i = 0
While i < numEmployees

    Dim empObj As Chilkat.JsonObject
    empObj = employees.ObjectAt(i)

    System.DebugLog("employee[" + Str(i) + "] = " + empObj.StringOf("firstName") + " " + empObj.StringOf("lastName"))

    i = i + 1
Wend


 

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