Конверсия удалось при преобразовании DateTime из строки символов в C#

Question

У меня есть следующий код:

string connetionString = null; 
SqlDataAdapter adpter = new SqlDataAdapter(); 
DataSet ds = new DataSet(); 
XmlReader xmlFile; 

connetionString = "Data Source=tsrv2062;Initial Catalog=Bums;User ID=BumsUser;Password=2tusen7Bums"; 


xmlFile = XmlReader.Create("navetout.xml", new XmlReaderSettings()); 
ds.ReadXml(xmlFile); 


using (var connection = new SqlConnection(connetionString)) 
{ 
    connection.Open(); 
    DateTime datum = DateTime.Now; 

    foreach (Person p in myPersons) 
    { 
     SqlCommand command1 = Avreg(p.UnregistrationReason, p.GivenNameNumber, connection); 

    command1.Parameters.AddWithValue("@PersonalIdentityNumber", string.Format("{0}{1}", p.PersonalIdentityNumber, p.SpecialIdentityNumber)); 
     command1.Parameters.AddWithValue("@FirstName", p.FirstName); 
     command1.Parameters.AddWithValue("@LastName", p.LastName); 
     command1.Parameters.AddWithValue("@NationalRegistrationCountyCode", p.NationalRegistrationCountyCode); 
     command1.Parameters.AddWithValue("@NationalRegistrationMunicipalityCode", p.NationalRegistrationMunicipalityCode); 
     command1.Parameters.AddWithValue("@NationalRegistrationDistributionAddress1", p.NationalRegistrationDistributionAddress1 ?? DBNull.Value.ToString()); 
     command1.Parameters.AddWithValue("@NationalRegistrationDistributionAddress2", p.NationalRegistrationDistributionAddress2 ?? DBNull.Value.ToString()); 
     command1.Parameters.AddWithValue("@NationalRegistrationPostCode", p.NationalRegistrationPostCode ?? DBNull.Value.ToString()); 
     command1.Parameters.AddWithValue("@NationalRegistrationCity", p.NationalRegistrationCity ?? DBNull.Value.ToString()); 
     command1.Parameters.AddWithValue("@BirthCountyCode", p.BirthCountyCode ?? DBNull.Value.ToString()); 
     command1.Parameters.AddWithValue("@UnregistrationDate", p.UnregistrationDate ?? DBNull.Value.ToString()); 
     command1.Parameters.AddWithValue("@BirthParish", p.BirthParish ?? DBNull.Value.ToString()); 
     command1.Parameters.AddWithValue("@CitizenshipCode", p.CitizenshipCode); 
     command1.Parameters.AddWithValue("@CitizenshipDate", p.CitizenshipDate ?? DBNull.Value.ToString()); 
     command1.Parameters.AddWithValue("@NationalRegistrationDate", p.NationalRegistrationDate ?? DBNull.Value.ToString()); 
     command1.Parameters.AddWithValue("@ForeignDistrubtionAddress1", p.ForeignDistrubtionAddress1 ?? DBNull.Value.ToString()); 
     command1.Parameters.AddWithValue("@ForeignDistrubtionAddress2", p.ForeignDistrubtionAddress2 ?? DBNull.Value.ToString()); 
     command1.Parameters.AddWithValue("@ForeignDistrubtionAddress3", p.ForeignDistrubtionAddress3 ?? DBNull.Value.ToString()); 
     command1.Parameters.AddWithValue("@ForeignBirthCity", p.ForeignBirthCity ?? DBNull.Value.ToString()); 

     command1.Parameters.AddWithValue("@LastChangedDate", datum); 

     command1.ExecuteNonQuery(); 

    Console.WriteLine(string.Format("{0}{1}", p.PersonalIdentityNumber, p.SpecialIdentityNumber)); 


    } 
} 

Console.WriteLine("Done"); 


}// Put a break-point here, then mouse-over PersonalIdentityNumber... deserializedList contains everything if you need it 
catch (Exception) 
{ 

throw; 
} 
Console.ReadKey(); 
} 

public static SqlCommand Avreg(string s, string t, SqlConnection connection) 
{ 
var query = "UPDATE Seamen SET FirstName = @FirstName, "+ 
"LastName = @LastName, "+ 
"NationalRegistrationCountyCode = @NationalRegistrationCountyCode, "+ 
"NationalRegistrationMunicipalityCode = @NationalRegistrationMunicipalityCode, "+ 
"NationalRegistrationDistributionAddress1 = @NationalRegistrationDistributionAddress1, "+ 
"NationalRegistrationDistributionAddress2 = @NationalRegistrationDistributionAddress2, "+ 
"UnregistrationDate = @UnregistrationDate, "+ 
"NationalRegistrationPostCode = @NationalRegistrationPostCode, "+ 
"NationalRegistrationCity = @NationalRegistrationCity, "+ 
"BirthCountyCode = @BirthCountyCode, "+ 
"BirthParish = @BirthParish, "+ 
"CitizenshipCode = @CitizenshipCode, "+ 
"CitizenshipDate = @CitizenshipDate, "+ 
"NationalRegistrationDate = @NationalRegistrationDate, "+ 
"ForeignDistrubtionAddress1 = @ForeignDistrubtionAddress1, "+ 
"ForeignDistrubtionAddress2 = @ForeignDistrubtionAddress2, "+ 
"ForeignDistrubtionAddress3 = @ForeignDistrubtionAddress3, "+ 
"ForeignBirthCity = @ForeignBirthCity, " + 
"LastChangedDate = @LastChangedDate"; 
SqlCommand command1; 
return command1; 
} 

Это дает мне ошибку при запуске:

Конверсия удалось при преобразовании DateTime из строки символов.

ошибка произошла, когда я добавил

"CitizenshipDate = @CitizenshipDate, "+ 

к строке запроса

Может кто-нибудь увидеть, где проблема?

ОБНОВЛЕНИЕ:

Ниже приведены значения:

List<FolkbokforingspostTYPE> deserializedList = new List<FolkbokforingspostTYPE>(); 
    deserializedList = Deserialize<List<FolkbokforingspostTYPE>>(); 


    var myPersons = Deserialize<List<FolkbokforingspostTYPE>>() 
     .Select(x => new Person 
     { 
      PersonalIdentityNumber = x.Personpost.PersonId.PersonNr, 
      SpecialIdentityNumber = x.Personpost.PersonId.Tilltalsnamnsmarkering != null ? x.Personpost.PersonId.Tilltalsnamnsmarkering : null, 
      LastName = x.Personpost.Namn.Efternamn, 
      FirstName = x.Personpost.Namn.Fornamn, 
      NationalRegistrationCountyCode = x.Personpost.Folkbokforing.LanKod, 
      NationalRegistrationMunicipalityCode = x.Personpost.Folkbokforing.KommunKod, 
      ForeignDistrubtionAddress1 = x.Personpost.Adresser.Utlandsadress != null ? x.Personpost.Adresser.Utlandsadress.Utdelningsadress1 : null, 
      ForeignDistrubtionAddress2 = x.Personpost.Adresser.Utlandsadress != null ? x.Personpost.Adresser.Utlandsadress.Utdelningsadress2 : null, 
      ForeignDistrubtionAddress3 = x.Personpost.Adresser.Utlandsadress != null ? x.Personpost.Adresser.Utlandsadress.Utdelningsadress3 : null, 
      NationalRegistrationDistributionAddress1 = x.Personpost.Adresser.Folkbokforingsadress != null ? x.Personpost.Adresser.Folkbokforingsadress.Utdelningsadress1 : null, 
      NationalRegistrationDistributionAddress2 = x.Personpost.Adresser.Folkbokforingsadress != null ? x.Personpost.Adresser.Folkbokforingsadress.Utdelningsadress2 : null, 
      NationalRegistrationPostCode = x.Personpost.Adresser.Folkbokforingsadress != null ? x.Personpost.Adresser.Folkbokforingsadress.PostNr : null, 

      UnregistrationReason = x.Personpost.Avregistrering != null ? x.Personpost.Avregistrering.AvregistreringsorsakKod : null, 
      UnregistrationDate = x.Personpost.Avregistrering != null ? x.Personpost.Avregistrering.Avregistreringsdatum : null, 

      NationalRegistrationCity = x.Personpost.Adresser.Folkbokforingsadress != null ? x.Personpost.Adresser.Folkbokforingsadress.Postort : null, 
      BirthCountyCode = x.Personpost.Fodelse.HemortSverige != null ? x.Personpost.Fodelse.HemortSverige.FodelselanKod : null, 
      BirthParish = x.Personpost.Fodelse.HemortSverige != null ? x.Personpost.Fodelse.HemortSverige.Fodelseforsamling : null, 
      CitizenshipDate = x.Personpost.Medborgarskap != null ? x.Personpost.Medborgarskap.Medborgarskapsdatum : null, 
      GivenNameNumber = x.Personpost.Namn.Tilltalsnamnsmarkering != null ? x.Personpost.Namn.Tilltalsnamnsmarkering : null, 
      NationalRegistrationDate = x.Personpost.Folkbokforing != null ? x.Personpost.Folkbokforing.Folkbokforingsdatum : null, 

      ForeignBirthCity = x.Personpost.Fodelse.OrtUtlandet != null ? x.Personpost.Fodelse.OrtUtlandet.FodelseortUtland : null, 




      CitizenshipCode = x.Personpost.Medborgarskap.MedborgarskapslandKod, 

     }); 

class Person { 
     public string PersonalIdentityNumber { get; set; } 
     public string SpecialIdentityNumber { get; set; } 
     public string FirstName { get; set; } 
     public string LastName { get; set; } 
     public string NationalRegistrationCountyCode { get; set; } 
     public string NationalRegistrationMunicipalityCode { get; set; } 
     public string NationalRegistrationDistributionAddress1 { get; set; } 
     public string NationalRegistrationDistributionAddress2 { get; set; } 
     public string NationalRegistrationPostCode { get; set; } 
     public string NationalRegistrationCity { get; set; } 
     public string BirthCountyCode { get; set; } 
     public string BirthParish { get; set; } 
     public string CitizenshipDate { get; set; } 
     public string UnregistrationReason { get; set; } 
     public string UnregistrationDate { get; set; } 
     public string CitizenshipCode { get; set; } 
     public string GivenNameNumber { get; set; } 
     public string NationalRegistrationDate { get; set; } 
     public string ForeignDistrubtionAddress1 { get; set; } 
     public string ForeignDistrubtionAddress2 { get; set; } 
     public string ForeignDistrubtionAddress3 { get; set; } 
     public string ForeignBirthCity { get; set; } 
} 

Answer 1

Убедитесь, что оба p.CitizenshipDate и CitizenshipDate в таблице матросам, объявленные как DateTime. Если вы должны объявить p.CitizenshipDate в качестве строки, введите ее, когда вы добавите значение параметра.