(MFC) Create a JSON Array of Objects

Demonstrates how to create a JSON array of objects.

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;

    CkJsonArray arr;

    bool success;

    // Add an empty object at the 1st JSON array position.
    arr.AddObjectAt(0);
    // Get the object we just created.
    CkJsonObject *obj = arr.ObjectAt(0);
    obj->UpdateString("Name","Otto");
    obj->UpdateInt("Age",29);
    obj->UpdateBool("Married",false);
    delete obj;

    // Add an empty object at the 2nd JSON array position.
    arr.AddObjectAt(1);
    obj = arr.ObjectAt(1);
    obj->UpdateString("Name","Connor");
    obj->UpdateInt("Age",43);
    obj->UpdateBool("Married",true);
    delete obj;

    // Add an empty object at the 3rd JSON array position.
    arr.AddObjectAt(2);
    obj = arr.ObjectAt(2);
    obj->UpdateString("Name","Ramona");
    obj->UpdateInt("Age",34);
    obj->UpdateBool("Married",true);
    delete obj;

    // Examine what we have:
    arr.put_EmitCompact(false);
    strOut.append(arr.emit());
    strOut.append("\r\n");

    // The output is:

    // [
    //   {
    //     "Name": "Otto",
    //     "Age": 29,
    //     "Married": false
    //   },
    //   {
    //     "Name": "Connor",
    //     "Age": 43,
    //     "Married": true
    //   },
    //   {
    //     "Name": "Ramona",
    //     "Age": 34,
    //     "Married": true
    //   }
    // ]


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }