public string[] searchUserDataCardNum(SearchUser userData)
 {
     string[] returnValue = new string[4];
     returnValue[0] = "0";
     returnValue[1] = "";
     returnValue[2] = "0"; //
     returnValue[3] = "";
     DataBase Base = new DataBase();
     using (SqlConnection Sqlconn = new SqlConnection(Base.GetConnString()))
     {
         try
         {
             StaffDataBase sDB = new StaffDataBase();
             CaseDataBase cDB = new CaseDataBase();
             List<string> CreateFileName = sDB.getStaffDataNameCardNum(userData.txtpeopleID);
             if (CreateFileName[1].Length == 0)
             {
                 CreateFileName = cDB.getStudentDataName(userData.txtpeopleID);
                 if (CreateFileName[1].Length != 0)
                 {
                     CreateFileName[2] = "2";
                 }
                 else
                 {
                     CreateFileName[0] = "0";
                 }
             }
             else
             {
                 CreateFileName[2] = "1";
             }
             returnValue[0] = CreateFileName[0];
             returnValue[1] = CreateFileName[1];
             returnValue[2] = CreateFileName[2];
             returnValue[3] = CreateFileName[3];
         }
         catch (Exception e)
         {
             returnValue[0] = "-1";
             returnValue[1] = e.Message.ToString();
             returnValue[2] = "0";
         }
     }
     return returnValue;
 }