unit1.pas

来自「borland xml及其应用」· PAS 代码 · 共 85 行

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, DB, DBClient, MConnect, ExtCtrls, DBCtrls, Grids, DBGrids,
  StdCtrls, ActnList;

type
  TForm1 = class(TForm)
    CheckBox1: TCheckBox;
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    DBGrid1: TDBGrid;
    DBGrid2: TDBGrid;
    DBNavigator1: TDBNavigator;
    DCOMConnection1: TDCOMConnection;
    DCOMConnection2: TDCOMConnection;
    ClientDataSet1: TClientDataSet;
    ClientDataSet2: TClientDataSet;
    DataSource1: TDataSource;
    DataSource2: TDataSource;
    ActionList1: TActionList;
    Action1: TAction;
    Action2: TAction;
    procedure Action1Execute(Sender: TObject);
    procedure Action1Update(Sender: TObject);
    procedure Action2Execute(Sender: TObject);
    procedure Action2Update(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Action1Execute(Sender: TObject);
begin
 DCOMConnection1.Connected := not Action1.Checked;
  if CheckBox1.Checked then begin
    ClientDataSet1.Close;
    ClientDataSet1.Open;
  end;
end;

procedure TForm1.Action1Update(Sender: TObject);
begin
 Action1.Checked := DCOMConnection1.Connected;

end;

procedure TForm1.Action2Execute(Sender: TObject);
begin
  ClientDataSet1.ApplyUpdates(-1);
end;

procedure TForm1.Action2Update(Sender: TObject);
begin
  Action2.Enabled := ClientDataSet1.ChangeCount > 0;

end;

procedure TForm1.Button2Click(Sender: TObject);
begin
  DCOMConnection2.Connected:=True;
  ClientDataSet2.Open;
end;

procedure TForm1.Button3Click(Sender: TObject);
begin
   ClientDataSet2.Refresh;
end;

end.