小编Ehs*_*san的帖子

我在Nhibernate3.1中有一个QueryOver方法

 var q = SessionInstance.QueryOver<Person>().
 Where(person=>person.PersonIdentity.FirstName.IsLike(firstName,MatchMode.Anywhere));

 return q.List<Person>();

现在我有这条消息的运行时错误:

无法解析属性:PersonIdentity.FirstName:MyNameSpace.Domain.Entities.Person

为什么？

我有一个使用Enterprise Library.Logging 5,.NET Framework 4.0 Client Profile的WPF应用程序

我使用数据库逻辑记录.还要添加对3个dll的引用以进行投影.

Microsoft.Practices.EnterpriseLibrary.Logging.dll
Microsoft.Practices.EnterpriseLibrary.Logging.Database.dll
Microsoft.Practices.EnterpriseLibrary.Data.dll

logEntry.Write(log)通过此消息我有1个运行时错误:

Invalid TraceListenerData type in configuration 'listenerDataType="Microsoft.Practices.EnterpriseLibrary.Logging.Database.Configuration.FormattedDatabaseTraceListenerData, Microsoft.Practices.EnterpriseLibrary.Logging.Database, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"'

我的app.config是:

<loggingConfiguration name="" tracingEnabled="true" defaultCategory="General" logWarningsWhenNoCategoriesMatch="false">
  <listeners>
    <add name="Event Log Listener" type="Microsoft.Practices.EnterpriseLibrary.Logging.TraceListeners.FormattedEventLogTraceListener, Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
      listenerDataType="Microsoft.Practices.EnterpriseLibrary.Logging.Configuration.FormattedEventLogTraceListenerData, Microsoft.Practices.EnterpriseLibrary.Logging, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
      source="Enterprise Library Logging" formatter="Text Formatter"
      log="" machineName="." traceOutputOptions="None" />
    <add name="Database Trace Listener" type="Microsoft.Practices.EnterpriseLibrary.Logging.Database.FormattedDatabaseTraceListener, Microsoft.Practices.EnterpriseLibrary.Logging.Database, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
      listenerDataType="Microsoft.Practices.EnterpriseLibrary.Logging.Database.Configuration.FormattedDatabaseTraceListenerData, Microsoft.Practices.EnterpriseLibrary.Logging.Database, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
      databaseInstanceName="Logging" writeLogStoredProcName="WriteLog"
      addCategoryStoredProcName="AddCategory" formatter="Text Formatter"
      traceOutputOptions="LogicalOperationStack, DateTime, Timestamp" />
  </listeners>
  <formatters>
    <add type="Microsoft.Practices.EnterpriseLibrary.Logging.Formatters.TextFormatter, …

可能重复:
在c#中将字符串转换为DateTime

如何通过格式将字符串转换为DateTime？

Convert.ToDateTime("12/11/17 2:52:35 PM")

结果是12/11/2017 02:52:35 PM,这是不正确的,因为我的期望11/17/2012 02:52:35 PM

我有一个使用NHibernate(2.2版)的项目.要升级到NHibernate 3.2,我该怎么办？

在dll之后我需要升级吗？

1. NHibernate.Linq.dll
2. Iesi.Collections.dll
3. Castle.Core.dll
4. Castle.DynamicProxy2.dll
5. Log4net.dll

我需要升级hbm文件吗？我是否需要升级hibernate.cfg.xml文件？

我有一个使用SQL Server 2008中的数据库的Windows应用程序.

我不希望用户看到数据库表.

如何加密数据库中的表？

我有一个Person继承的类EntityBase:

public class Person : EntityBase
{        
   virtual public string FirstName { get; set; }
   virtual public string LastName { get; set; } 
   virtual public IList<Asset> Assets { get; set; }   

}

和

public class EntityBase : IEntity
{    
   public virtual long Id { get; protected set; }
   public virtual string Error { get; protected set; }
}

我需要获得自习Person类的属性列表:

var entity = preUpdateEvent.Entity;

foreach (var item in entity.GetType().GetProperties()) //only FirstName & LastName
{
   if …

我有一个使用linq到NHibernate的查询,用于EnterAndExitArchive实体.该实体具有按Archive实体关联.

public EnterAndExitArchive GetLastEnterAndExitArchive(long archiveId)
{
   var q = SessionInstance.Query<EnterAndExitArchive>()
          .Where(x => x.Archive.Id == archiveId)
          .LastOrDefault<EnterAndExitArchive>();

   return q;
}

要么

public EnterAndExitArchive GetLastEnterAndExitArchive(long archiveId)
{
   var q = SessionInstance.Query<EnterAndExitArchive>()
          .LastOrDefault<EnterAndExitArchive>(x => x.Archive.Id == archiveId);

   return q;
}

但这有一个运行时错误.异常消息是The LastResultOperator result operator is not current supported.

为什么？

我有一个Address类.

public class Address : RootEntityBase
{
    virtual public string Province { set; get; }
    virtual public string City { set; get; }        
    virtual public string PostalCode { set; get; }
}

通过此默认值:

var myList = new List<Address>
             {
               new Address {Province = "P1", City = "C1", PostalCode = "A"},
               new Address {Province = "P1", City = "C1", PostalCode = "B"},
               new Address {Province = "P1", City = "C1", PostalCode = "C"},

               new Address {Province = "P1", City = "C2", …

我有3个类:Person,Employee1,Employee2

public class Employee1 : Person
{
}

public class Employee2 : Person
{
}

我需要查询Person_Table,有时需要加入Employee1_Table或Employee_Table.

var q = SessionInstance.Query<Person>();

if (dto.Code != null)                           // A1 Condition
     q = q.Where(x => x.Code == dto.Code);

//if(A2 Condition)
//if(A3 Condition)
//...

switch (dto.Type)
{
    case PersonType.Employee1:
         var q1 = SessionInstance.Query<Employee1>();
         q.Join(q1, x => x.Id, xx => xx.Id, (x, xx) => x);

         if (!String.IsNullOrEmpty(dto.Unit))   // B1 Condition
             q1 = q1.Where(xx => xx.Unit == dto.Unit);

         //if(B2 Condition)
         //if(B3 Condition)
         //... 

         return q1.ToList<Person>();

    case PersonType.Employee2: …

如何在C#中提取ZipFile？(ZipFile是包含文件和目录)