Chilkat Examples

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C# UWP/WinRT Examples


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(C# UWP/WinRT) JSON: Nested Array

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

{
 "numbers" : [ 
    ["even", 2, 4, 6, 8], 
    ["prime", 2, 3, 5, 7, 11, 13] 
  ] }

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 = "{ \"numbers\" : [ [\"even\", 2, 4, 6, 8], [\"prime\", 2, 3, 5, 7, 11, 13] ] }";

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

//  Get the value of the "numbers" object, which is an array that contains JSON arrays.
Chilkat.JsonArray outerArray = json.ArrayOf("numbers");
if (outerArray == null ) {
    Debug.WriteLine("numbers array not found.");
    return;
}

int numArrays = outerArray.Size;
int i;

for (i = 0; i <= numArrays - 1; i++) {

    Chilkat.JsonArray innerArray = outerArray.ArrayAt(i);

    //  The first item in the innerArray is a string
    Debug.WriteLine(innerArray.StringAt(0) + ":");

    int numInnerItems = innerArray.Size;
    int j;
    for (j = 1; j <= numInnerItems - 1; j++) {

        Debug.WriteLine("  " + Convert.ToString(innerArray.IntAt(j)));

    }

}


 

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