unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls, ExtCtrls, Db, DBClient, Grids, DBGrids;

type
  TForm1 = class(TForm)
    DataSource1: TDataSource;
    DBGrid1: TDBGrid;
    ClientDataSet1: TClientDataSet;
    Panel1: TPanel;
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    Button4: TButton;
    Button5: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button4Click(Sender: TObject);
    procedure Button5Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.Button1Click(Sender: TObject);
begin
  ClientDataSet1.CreateDataSet;
end;

procedure TForm1.Button2Click(Sender: TObject);
var
  S: TFileName;
begin
  S := ExtractFilePath(ParamStr(0)) + 'dataset.xml';
  ClientDataSet1.SaveToFile(S, dfXML);
end;

procedure TForm1.Button3Click(Sender: TObject);
var
  S: TFileName;
begin
  S := ExtractFilePath(ParamStr(0)) + 'dataset.xml';
  ClientDataSet1.LoadFromFile(S);
end;

procedure TForm1.Button4Click(Sender: TObject);
begin
  ClientDataSet1.Close;
end;

procedure TForm1.Button5Click(Sender: TObject);
begin
  ClientDataSet1.MergeChangeLog;
end;

end.