Delphi ActiveX

Create a JSON Array of Objects

See more JSON Examples

Demonstrates how to create a JSON array of objects. Delphi ActiveX

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;
arr: TChilkatJsonArray;
obj: TChilkatJsonObject;

begin
success := 0;

arr := TChilkatJsonArray.Create(Self);

obj := TChilkatJsonObject.Create(Self);

// Create a new and empty JSON object in the 1st position of the JSON array 
// and return the reference in the last argument.
arr.AddObjectAt2(0,obj.ControlInterface);
obj.UpdateString('Name','Otto');
obj.UpdateInt('Age',29);
obj.UpdateBool('Married',0);

// Create a new and empty JSON object in the 2nd position of the JSON array 
// and return the reference in the last argument.
arr.AddObjectAt2(1,obj.ControlInterface);
obj.UpdateString('Name','Connor');
obj.UpdateInt('Age',43);
obj.UpdateBool('Married',1);

// Create a new and empty JSON object in the 3rd position of the JSON array 
// and return the reference in the last argument.
arr.AddObjectAt2(2,obj.ControlInterface);
obj.UpdateString('Name','Ramona');
obj.UpdateInt('Age',34);
obj.UpdateBool('Married',1);

// Examine what we have:
arr.EmitCompact := 0;
Memo1.Lines.Add(arr.Emit());

// The output is:

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