使用.Net中的另一个相同类型的对象更新对象的最佳方法是什么？

Question

已经提出了类似的问题，但是找不到可行的解决方案。 我所拥有的是一个相当大的对象（Viper对象），它有几个子对象和列表。我将每秒收到一个Viper对象的新实例，我需要将这些数据合并到一个“主”Viper对象中。如果该属性为空，则跳过它，如果不替换它。一些属性是列表只会被新属性取代，一些列表属性会将新列表追加到现有列表中。

要点是，有些属性需要一些自定义逻辑来确定如何执行合并。问题是我应该使用像AutoMapper/Value Injector之类的东西，还是只在需要另一个Viper对象的数据模型中编写自定义Merge命令？这需要尽可能高效，因为它会被称为很多。

下面是数据模型：

public class Viper 
{ 
    #region INotifyPropertyChanged Members 
    public event PropertyChangedEventHandler PropertyChanged; 

    protected void OnPropertyChanged(string property) 
    { 
     if (PropertyChanged != null) 
     { 
      PropertyChanged(this, new PropertyChangedEventArgs(property)); 
     } 
    } 
    #endregion 

    [DataMember(IsRequired = false, EmitDefaultValue = false)] 
    public int ViperId { get; set; } 

    [DataMember] 
    public int CaseId { get; set; } 

    [DataMember] 
    public int RecordCount { get; set; } 

    [DataMember(IsRequired = false, EmitDefaultValue = false)] 
    public string SerialNumber { get; set; } 

    [DataMember(IsRequired = false, EmitDefaultValue = false)] 
    public string UserName { get; set; } 

    [DataMember(IsRequired = false, EmitDefaultValue = false)] 
    public string GroupName { get; set; } 

    [DataMember] 
    public Byte Status { get; set; } 
    [DataMember] 
    public int CaseStage { get; set; } 

    [DataMember(IsRequired = false,EmitDefaultValue = false)] 
    public CaseDetail CaseDetail { get; set; } 

    private ViperMetaData _metaData; 
    [DataMember(IsRequired = false, EmitDefaultValue = false)] 
    public ViperMetaData MetaData { 
     get { return _metaData; } 
     set 
     { 
      _metaData = value; 
      OnPropertyChanged("MetaData"); 
     } 
    } 

    [DataMember(IsRequired = false, EmitDefaultValue = false)] 
    public List<CasePatientData> PatientDetailsTable1 { get; set; } 
    [DataMember(IsRequired = false, EmitDefaultValue = false)] 
    public List<CasePatientData> PatientDetailsTable2 { get; set; } 
    [DataMember(IsRequired = false, EmitDefaultValue = false)] 
    public List<CasePatientData> PatientDetailsTable3 { get; set; } 
    [DataMember(IsRequired = false, EmitDefaultValue = false)] 
    public List<CasePatientData> PatientDetailsTable4 { get; set; } 

    [DataMember(IsRequired = false, EmitDefaultValue = false)] 
    public List<CaseChannel> CaseChannelDataList { get; set; } // list of all channels available in a specific case/viper 

    [DataMember(IsRequired = false, EmitDefaultValue = false)] 
    public List<EventsData> EventsDataList { get; set; } 


    [DataMember(IsRequired = false, EmitDefaultValue = false)] 
    public List<ChannelData> ChannelDataList { get; set; } 

    [DataMember(IsRequired = false, EmitDefaultValue = false)] 
    public CasePatientDetails CasePatientDetails { get; set; } 

    [DataMember(IsRequired = false, EmitDefaultValue = false)] 
    public List<CaseFluids> CaseFluidsList { get; set; } 

    [DataMember(IsRequired = false, EmitDefaultValue = false)] 
    public List<PatientTable> PatientTableNames { get; set; } 

    [DataMember] 
    public int? TimeOffset { get; set; } 

    [DataMember(IsRequired = false,EmitDefaultValue = false)] 
    public string Html { get; set; } 

    [DataMember(IsRequired = false, EmitDefaultValue = false)] 
    public List<CaseDocument> CaseDocuments { get; set; } 
    [DataMember(IsRequired = false, EmitDefaultValue = false)] 
    public Department Department { get; set; } 
    [DataMember(IsRequired = false, EmitDefaultValue = false)] 
    public List<Gauge> Gauges { get; set; } 
    [DataMember(IsRequired = false, EmitDefaultValue = false)] 
    public List<Region> Regions { get; set; } 
    [DataMember(IsRequired = false, EmitDefaultValue = false)] 
    public List<BloodGasData> BloodGasDataList { get; set; } 
    [DataMember(IsRequired = false, EmitDefaultValue = false)] 
    public List<CardioplegiaData> CardioplegiaDataList { get; set; } 
    [DataMember(IsRequired = false, EmitDefaultValue = false)] 
    public List<ComplianceDataUnit> ComplianceDataList { get; set; } 
} 

Answer 1

正如你所说，我会用自动映射或价值注射器。特别是如果您的属性名称与对象相似，则几乎不需要编写任何代码。对于自定义映射，编写自定义函数以传递给映射方法非常简单。很有用。什么会像快速伪代码：

AutoMapper.Mapper.CreateMap<Viper, ViperDto>() 
    .ForMember(dest => dest.Property, opt => opt.NullSubstitute("N/A")); 
var merged = AutoMapper.Mapper.Map(viper, viperDTO);