editform.pas

进销存·完整的·有数据库的·非常完整·只得参考

unit EditForm;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  BaseForm, KsSkinForms, KsSkinMessages,
  dxCntner, dxTL, Buttons, DB, ADODB, se_controls, KsSkinSpeedButtons;

type
  TfrmEditForm = class(TfrmBaseForm)
    ADOConnection1: TADOConnection;
    sbbFirst: TSeSkinSpeedButton;
    sbbPrior: TSeSkinSpeedButton;
    sbbNext: TSeSkinSpeedButton;
    sbbLast: TSeSkinSpeedButton;
    procedure FormKeyDown(Sender: TObject; var Key: Word;
      Shift: TShiftState);
    procedure sbbFirstClick(Sender: TObject);
    procedure sbbPriorClick(Sender: TObject);
    procedure sbbNextClick(Sender: TObject);
    procedure sbbLastClick(Sender: TObject);
  private
    { Private declarations }
  protected
    DataSet: TDataSet;
  public
    { Public declarations }
  end;

var
  frmEditForm: TfrmEditForm;

implementation

uses SysPublic;

{$R *.DFM}

procedure TfrmEditForm.FormKeyDown(Sender: TObject; var Key: Word;
  Shift: TShiftState);
begin
  inherited;
  case KEY of
    VK_RETURN: perform(WM_NEXTDLGCTL, 0, 0);
    VK_ESCAPE: Close;
  end;
end;

procedure TfrmEditForm.sbbFirstClick(Sender: TObject);
begin
  inherited;
  if not DataSet.Active then Exit;
  if DataSet.State in [dsInsert] then
  begin
    if MsgBox('你没有保存数据，确定要继续吗？', '提示', MB_OKCANCEL) <> IDOK then Exit;
    DataSet.Cancel;
  end;
  DataSet.First;
end;

procedure TfrmEditForm.sbbPriorClick(Sender: TObject);
begin
  inherited;
  if not DataSet.Active then Exit;
  if DataSet.State in [dsInsert] then
  begin
    if MsgBox('你没有保存数据，确定要继续吗？', '提示', MB_OKCANCEL) <> IDOK then Exit;
    DataSet.Cancel;
  end;
  DataSet.Prior;
end;

procedure TfrmEditForm.sbbNextClick(Sender: TObject);
begin
  inherited;
  if not DataSet.Active then Exit;
  if DataSet.State in [dsInsert] then
  begin
    if MsgBox('你没有保存数据，确定要继续吗？', '提示', MB_OKCANCEL) <> IDOK then Exit;
    DataSet.Cancel;
  end;
  DataSet.Next;
end;

procedure TfrmEditForm.sbbLastClick(Sender: TObject);
begin
  inherited;
  if not DataSet.Active then Exit;
  if DataSet.State in [dsInsert] then
  begin
    if MsgBox('你没有保存数据，确定要继续吗？', '提示', MB_OKCANCEL) <> IDOK then Exit;
    DataSet.Cancel;
  end;
  DataSet.Last;
end;

end.