Delphi ActiveX

Emit JSON Array to StringBuilder

See more JSON Examples

Demonstrates how to write a JSON array to a Chilkat StringBuilder object. 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;
a: TChilkatJsonArray;
s: WideString;
sb: TChilkatStringBuilder;

begin
success := 0;

a := TChilkatJsonArray.Create(Self);
success := a.Load('[ 1,2,3,4 ]');

// We could get the JSON array as a string...
s := a.Emit();
Memo1.Lines.Add(s);

// But what if the JSON array contains a huge amount of data,
// and we don't want to marshal it all from Chilkat's internal
// native code to a string in our programming language?

// You can instead emit to a Chilkat StringBuilder
sb := TChilkatStringBuilder.Create(Self);
a.EmitSb(sb.ControlInterface);

// Perhaps the StringBuilder object can be passed to other methods..
// Chilkat typically provides methods where a potentially large string
// can be passed in via a StringBuilder object..

// Or perhaps you wish to save to a file..
success := sb.WriteFile('c:/temp/qa_output/a.json','utf-8',0);
end;