public DataTable GetDB4Backup()
 {
     using (CommonServiceClient client = SoapClientFactory.CreateCommonServiceClient())
     {
         byte[] loginTicket = WebServiceSecurity.EncryptLoginer(Loginer.CurrentUser);
         byte[] bs          = client.GetDB4Backup(loginTicket);
         return(ZipTools.DecompressionDataSet(bs).Tables[0]);
     }
 }