Linq to CSVデータを出力しない

Question

linqからcsvを使用してエンティティをcsvファイルに出力しています。ソースをループしており、変数PersonalDetailsには6つのレコードがあります。

public class PersonalDetails 
{ 
    public string LineType { get; set; } 
    public string EnquirerTitle { get; set; } 
    public string ForeName { get; set; } 
    public string Surname { get; set; } 
    public int? Age { get; set; } 
    public DateTime? DateOfBirth { get; set; } 
    public string MaritalStatus { get; set; } 
    public string HomePhone { get; set; } 
    public string MobilePhone { get; set; } 
    public string Email { get; set; } 
    public string Address { get; set; } 
    public string Employment { get; set; } 
    public string Occupation { get; set; } 
} 

public Boolean CsvOutput(string filename, char delimnator) 
    { 
     try 
     { 
      CsvFileDescription outputFileDescription = new CsvFileDescription 
      { 
       SeparatorChar = delimnator, // tab delimited 
       FirstLineHasColumnNames = false, // no column names in first record 
       EnforceCsvColumnAttribute = true, 
       FileCultureName = "nl-NL" // use formats used in The Netherlands 
      }; 

      CsvContext cc = new CsvContext(); 
      IQueryable<tblapertureNetAppointment> _personadetails; 

      var personalDetails = (from _appointments in _dal.apertureNetEntities.tblapertureNetAppointments 
            select new PersonalDetails() 
            { 
             LineType = "Details", 
             EnquirerTitle = "MR", 
             ForeName = _appointments.CustomerFirstName, 
             Surname = _appointments.CustomerLastName, 
             Age = _appointments.age, 
             DateOfBirth = _appointments.dob, 
             MaritalStatus = "Single", 
             HomePhone = "MobilePhone", 
             Email = "david.buckley@aperture.uk.com", 
             Address = _appointments.Address1 + "," + _appointments.Address2 + "," + _appointments.County + "," + _appointments.PostCode, 
             Employment = "Developer", 
             Occupation = "Yes" 
            }).ToList(); 

      cc.Write(personalDetails,filename,outputFileDescription); 
     } 
     catch (Exception ex) 
     { 
      return false; 
     } 
     return true; 
    } 

ファイルは作成されていますが、実際のファイルにはデータはありません。私はPersonalDetailsここ

Answer 1

にレコードがあるデバッグする場合です

  StreamWriter writer = new StreamWriter(filename); 
      string[][] rows = { 
            {"abc", "cdf", "ghi"}, 
            {"jkl", "mno", "pqr"}, 
            {"stu", "vwx", "yz"} 
           }; 

      foreach (string[] row in rows) 
      { 
       writer.WriteLine(string.Join(",", row)); 
      } 
      writer.Flush(); 
      writer.Close();