(MFC) Load a JsonArray

Demonstrates how to load a JsonArray.

Note: This example requires Chilkat v9.5.0.64 or greater.

Chilkat C/C++ Library Downloads MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

#include <CkJsonArray.h>
#include <CkJsonObject.h>

void ChilkatSample(void)
    {
    CkString strOut;

    // This example requires Chilkat v9.5.0.64 or greater.

    // Loading into a new JSON array is simple and straightforward.
    CkJsonArray a;
    a.Load("[ 1,2,3,4 ]");

    // Output:  [1,2,3,4]
    strOut.append(a.emit());
    strOut.append("\r\n");
    strOut.append("--------");
    strOut.append("\r\n");

    // The JsonArray's Load and LoadSb methods have a peculiar behavior when
    // it is already part of a JSON document.  In this case, the JsonArray
    // becomes detached, and the original document remains unchanged.
    // This is intentional due to the nature of the internal implementation.
    // For example:

    CkJsonObject json;
    json.Load("{ \"abc\": [ 1,2,3,4 ] }");

    // Output:  (json) {"abc":[1,2,3,4]}
    strOut.append("(json) ");
    strOut.append(json.emit());
    strOut.append("\r\n");
    strOut.append("--------");
    strOut.append("\r\n");

    CkJsonArray *abc = json.ArrayOf("abc");
    // When Load is called, abc becomes it's own document, and the original is not modified.
    abc->Load("[ 5,6,7,8 ]");

    // Output: (abc) [5,6,7,8]
    strOut.append("(abc) ");
    strOut.append(abc->emit());
    strOut.append("\r\n");
    strOut.append("--------");
    strOut.append("\r\n");

    // Output: (json) {"abc":[1,2,3,4]}
    strOut.append("(json) ");
    strOut.append(json.emit());
    strOut.append("\r\n");
    strOut.append("--------");
    strOut.append("\r\n");
    delete abc;


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }