main.pas

ODAC+SDAC源代码

unit Main;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  DBCtrls, ExtCtrls, Db, Grids, DBGrids,  StdCtrls, ToolWin,
  ComCtrls, MemDS, DBAccess, MSAccess, SdacVcl;

type
  TfmMain = class(TForm)
    MSConnection: TMSConnection;
    DBGrid: TDBGrid;
    DataSource: TDataSource;
    MSConnectDialog: TMSConnectDialog;
    ToolBar: TPanel;
    btOpen: TButton;
    btClose: TButton;
    btPrepare: TButton;
    btUnPrepare: TButton;
    btExecute: TButton;
    StatusBar: TStatusBar;
    Panel1: TPanel;
    edStoredProcName: TEdit;
    MSStoredProc: TMSStoredProc;
    Label1: TLabel;
    DBNavigator: TDBNavigator;
    btPrepareSQL: TButton;
    procedure btOpenClick(Sender: TObject);
    procedure btCloseClick(Sender: TObject);
    procedure btPrepareClick(Sender: TObject);
    procedure btUnPrepareClick(Sender: TObject);
    procedure btExecuteClick(Sender: TObject);
    procedure FormShow(Sender: TObject);
    procedure edStoredProcNameExit(Sender: TObject);
    procedure btPrepareSQLClick(Sender: TObject);
  private
    { Private declarations }
    procedure ShowState;
  public
    { Public declarations }
  end;

var
  fmMain: TfmMain;

implementation

{$R *.nfm}

procedure TfmMain.ShowState;
var
  St:string;

  procedure AddSt(S:string);
  begin
    if St <> '' then
      St := St + ', ';
    St := St + S;
  end;

begin
  St := '';

  if MSStoredProc.Prepared then begin
    AddSt('Prepared');

    if MSStoredProc.IsQuery then
      AddSt('IsQuery');

  end;

  if MSStoredProc.Active then
    AddSt('Active')
  else
    AddSt('Inactive');

  StatusBar.Panels[0].Text := St;
end;

procedure TfmMain.btOpenClick(Sender: TObject);
begin
  try
    MSStoredProc.Open;
  finally
    ShowState;
  end;
end;

procedure TfmMain.btCloseClick(Sender: TObject);
begin
  MSStoredProc.Close;
  ShowState;
end;

procedure TfmMain.btPrepareClick(Sender: TObject);
begin
  try
    MSStoredProc.Prepare;
  finally
    ShowState;
  end;
end;

procedure TfmMain.btUnPrepareClick(Sender: TObject);
begin
  MSStoredProc.UnPrepare;
  ShowState;
end;

procedure TfmMain.btExecuteClick(Sender: TObject);
begin
  try
    MSStoredProc.Execute;
  finally
    ShowState;
  end;
end;

procedure TfmMain.FormShow(Sender: TObject);
begin
  edStoredProcName.Text := MSStoredProc.StoredProcName;
  ShowState;
end;

procedure TfmMain.edStoredProcNameExit(Sender: TObject);
begin
  MSStoredProc.StoredProcName := edStoredProcName.Text;
  ShowState;
end;

procedure TfmMain.btPrepareSQLClick(Sender: TObject);
begin
  MSStoredProc.PrepareSQL;
end;

end.