procedure TForm1.Button1Click(Sender: TObject);
var
  i, j: Integer;
  s: string;
begin
  if DBGrid1.SelectedRows.Count>0 then
    with DBGrid1.DataSource.DataSet do
      for i:=0 to DBGrid1.SelectedRows.Count-1 do
      begin
        GotoBookmark(pointer(DBGrid1.SelectedRows.Items[i]));
        for j := 0 to FieldCount-1 do
        begin              if (j>0) then s:=s ', ';
          s:=s Fields[j].AsString;
        end;
        Listbox1.Items.Add(s);
        s:= '';
      end;
end;

引言: 請問: 1.dbgrid選取多筆資料 2.再按Navigator的刪除 3.即刪除所選取之多筆資料 可否有案例請告知...tks < face="Verdana, Arial, Helvetica">

procedure TForm1.DBNavigator1BeforeAction(Sender: TObject;
  Button: TNavigateBtn);
var
  qry: TQuery;
  I: Integer;
  KeyField: String;
begin
  if Button = nbDelete then
  begin
    if MessageDlg('您確定要刪除這些資料嗎?', mtConfirmation, [mbYes, mbNo], 0) = mrYes then
    begin
      qry := TQuery.Create(nil);
      try
        qry.DatabaseName := 'Your Alias Name';
        if DBGrid1.SelectedRows.Count > 0 then
        begin
          for I := 0 to DBGrid1.SelectedRows.Count - 1 do
          begin
            TDBNavigator(Sender).DataSource.DataSet.GotoBookmark(pointer(DBGrid1.SelectedRows.Items[I]));
            if KeyField <> '' then
              KeyField := KeyField ','  #39 TDBNavigator(Sender).DataSource.DataSet.FieldByName(KeyField).AsString #39
            else
              KeyField := #39 TDBNavigator(Sender).DataSource.DataSet.FieldByName('Order_No').AsString #39;
          end;
          qry.SQL.Add('Delete From TableName Where KeyField in (' KeyField ')');
          qry.ExecSQL;
          TDBNavigator(Sender).DataSource.DataSet.Close;
          TDBNavigator(Sender).DataSource.DataSet.Open;
        end;
      finally
        FreeAndNil(qry);
      end;
    end;
    abort;
  end;
end;

~小弟淺見，參考看看~