delphi循环校验数据集

function XXXXXFrom.CheckData(Sender: TObject): Boolean;
var
  tmpcds:TfwClientDataset;
begin
  Result:=False;
  tmpcds:=TfwClientDataset.Create(nil);
  try
    tmpcds.CopyFromDataSet(fcdsImport);
    tmpcds.First;
    while not tmpcds.Eof do
    begin
      if Trim(tmpcds.FieldByName('LICENSE').AsString)='' then
          begin
            TbsUtilFunc.ShowMsg('XXX不能为空，请重新填写导入!');
            exit;
          end;
          if Trim(tmpcds.FieldByName('REPORT_MAN').AsString)='' then
          begin
            TbsUtilFunc.ShowMsg('XXX不能为空，请重新填写导入!');
            exit;
          end;
          if Trim(tmpcds.FieldByName('RECORD_MAN').AsString)='' then
          begin
            TbsUtilFunc.ShowMsg('XXX不能为空，请重新填写导入!');
            exit;
          end;
         
      tmpcds.Next;
    end;
  finally
    FreeAndNil(tmpcds);
  end;
  Result:=True;
end;