(Delphi ActiveX) Example: JsonObject.NewObjectOf method

Demonstrates the NewObjectOf method.

Note: This example requires Chilkat v11.4.0 or greater.

Chilkat for Delphi Downloads Chilkat ActiveX DLL for Delphi Chilkat non-ActiveX DLL for Delphi * The examples here use the ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Integer;
car: WideString;
json: TChilkatJsonObject;

begin
success := 0;

car := '{"make":"Toyota","model":"Camry","year":2022,"color":"silver","engine":{"type":"inline-4","fuel":"gasoline","horsepower":203},"features":["bluetooth","backup camera","adaptive cruise control","lane assist"],"isElectric":false}';

json := TChilkatJsonObject.Create(Self);

json.UpdateString('test','abc');

success := json.NewObjectOf('car',car);
if (success = 0) then
  begin
    Memo1.Lines.Add(json.LastErrorText);
    Exit;
  end;

json.EmitCompact := 0;
Memo1.Lines.Add(json.Emit());

// Result:

// {
//   "test": "abc",
//   "car": {
//     "make": "Toyota",
//     "model": "Camry",
//     "year": 2022,
//     "color": "silver",
//     "engine": {
//       "type": "inline-4",
//       "fuel": "gasoline",
//       "horsepower": 203
//     },
//     "features": [
//       "bluetooth",
//       "backup camera",
//       "adaptive cruise control",
//       "lane assist"
//     ],
//     "isElectric": false
//   }
// }
end;