(MFC) JSON: Renaming and Deleting Members

Demonstrates renaming and deleting members. This example uses the following JSON document:

{
   "apple": "red",
   "lime": "green",
   "banana": "yellow",
   "broccoli": "green",
   "strawberry": "red"
}

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

See Also: Using MFC CString in Chilkat

#include <CkJsonObject.h>

void ChilkatSample(void)
    {
    CkString strOut;

    CkJsonObject json;

    bool success = json.Load("{\"apple\": \"red\",\"lime\": \"green\",\"banana\": \"yellow\",\"broccoli\": \"green\",\"strawberry\": \"red\"}");
    if (success != true) {
        strOut.append(json.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // Rename "lime" to "lemon".
    success = json.Rename("lime","lemon");
    // Change the color to yellow:
    success = json.SetStringOf("lemon","yellow");

    // Rename by index.  Banana is at index 2 (apple is at index 0)
    success = json.RenameAt(2,"bartlett_pear");

    // Delete broccoli by name
    success = json.Delete("broccoli");

    // Delete apple by index.  Apple is at index 0.
    success = json.DeleteAt(0);

    json.put_EmitCompact(false);
    strOut.append(json.emit());
    strOut.append("\r\n");


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }