unit MainFormU; interface uses Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics, Vcl.Controls, Vcl.Forms, Vcl.Dialogs, ObjectsMappers, BusinessObjectsU, Vcl.StdCtrls; type TForm1 = class(TForm) Button1: TButton; Memo1: TMemo; Memo2: TMemo; procedure Button1Click(Sender: TObject); private { Private declarations } public { Public declarations } end; var Form1: TForm1; implementation {$R *.dfm} procedure TForm1.Button1Click(Sender: TObject); var LResponseSession: TParent; begin LResponseSession := Mapper.JSONObjectStringToObject(Memo1.Lines.Text); Memo2.Lines.Text := Mapper.ObjectToJSONObjectString(LResponseSession); end; end.