水晶报表，别名识别问题
水晶报表，运行时不识别表别名是什么问题啊，哪位大神能帮忙解决下，因为同一张表多次使用，所以需要用到别名，但是读取的时候不识别，报错为，该表不存在。
代码：
  for (int i = 0; i < rptDoc.Database.Tables.Count; i++)
  {
  CrystalDecisions.Shared.TableLogOnInfo logonInfo = rptDoc.Database.Tables[i].LogOnInfo;
  logonInfo.ConnectionInfo.ServerName = myLoginInfo.DBServer;
  logonInfo.ConnectionInfo.DatabaseName = myLoginInfo.DBName;
  logonInfo.ConnectionInfo.UserID = myLoginInfo.DBUserID;
  if (myLoginInfo.DBPassword != null)
  {
  logonInfo.ConnectionInfo.Password = myLoginInfo.DBPassword;
  }
  else
  {
  logonInfo.ConnectionInfo.Password = System.Configuration.ConfigurationManager.ConnectionStrings["Password"].ToString(); 
  }
  logonInfo.ConnectionInfo.IntegratedSecurity = false;
  logonInfo.ConnectionInfo.Type = CrystalDecisions.Shared.ConnectionInfoType.SQL;
  rptDoc.Database.Tables[i].ApplyLogOnInfo(logonInfo);
   
  rptDoc.Database.Tables[i].Location =rptDoc.Database.Tables[i].Name; // caters for RDO connection

  }

------解决方案--------------------
接分