我使用函数 FreezeAllAccountsForUser 生成了以下 XML。我只需要为此函数序列化以下两列。如何将序列化限制为两列?
- 银行账户ID
- 地位
注意:关键是做这个限制的范围应该只在函数FreezeAllAccountsForUser之内;不是全球性的。
参考
XML
<ArrayOfBankAccount xmlns:i="http://www.w3.org/2001/XMLSchema-instance" z:Id="1" z:Size="1"
xmlns:z="http://schemas.microsoft.com/2003/10/Serialization/"
xmlns="http://schemas.datacontract.org/2004/07/DBML_Project">
<BankAccount z:Id="2" i:type="FixedBankAccount">
<AccountOwnerID>2</AccountOwnerID>
<AccountType z:Id="3">Fixed </AccountType>
<BankAccountID>2</BankAccountID>
<BankUser z:Id="4">
<BankAccounts z:Id="5" z:Size="1">
<BankAccount z:Ref="2" i:nil="true" />
</BankAccounts>
<Name z:Id="6">TestP1 </Name>
<UserID>2</UserID>
<UserType z:Id="7">Ordinary </UserType>
</BankUser>
<OpenedDate i:nil="true" />
<Status z:Id="8">FrozenFA</Status>
</BankAccount>
</ArrayOfBankAccount>
序列化
public class BankAccountAppService
{
public RepositoryLayer.ILijosBankRepository AccountRepository { get; set; }
public void FreezeAllAccountsForUser(int userId)
{
IEnumerable<DBML_Project.BankAccount> accounts = AccountRepository.GetAllAccountsForUser(userId);
foreach (DBML_Project.BankAccount acc in accounts)
{
string typeResult = Convert.ToString(acc.GetType());
string baseValue = Convert.ToString(typeof(DBML_Project.BankAccount));
if (String.Equals(typeResult, baseValue))
{
throw new Exception("Not correct derived type");
}
acc.Freeze();
}
System.Xml.XmlDocument xmlDoc = new System.Xml.XmlDocument();
System.Xml.XPath.XPathNavigator nav = xmlDoc.CreateNavigator();
using (System.Xml.XmlWriter writer = nav.AppendChild())
{
System.Runtime.Serialization.DataContractSerializer serializer = new System.Runtime.Serialization.DataContractSerializer(typeof(List<DBML_Project.BankAccount>), null, int.MaxValue, false, true, null);
serializer.WriteObject(writer, accounts);
}
xmlDoc.Save("C:\\DevTEST\\FileName.txt");
}
}
领域类
namespace DBML_Project
{
[KnownType(typeof(FixedBankAccount))]
[KnownType(typeof(SavingsBankAccount))]
public partial class BankAccount
{
//Define the domain behaviors
public virtual void Freeze()
{
//Do nothing
}
}
public class FixedBankAccount : BankAccount
{
public override void Freeze()
{
this.Status = "FrozenFA";
}
}
public class SavingsBankAccount : BankAccount
{
public override void Freeze()
{
this.Status = "FrozenSB";
}
}
}
LINQ to SQL 自动生成的类
[global::System.Data.Linq.Mapping.TableAttribute(Name="dbo.BankAccount")]
[InheritanceMapping(Code = "Fixed", Type = typeof(FixedBankAccount), IsDefault = true)]
[InheritanceMapping(Code = "Savings", Type = typeof(SavingsBankAccount))]
public partial class BankAccount : INotifyPropertyChanging, INotifyPropertyChanged