Green.AgileMapper意在处理领域驱动开发中对象之间的Mapper(如果你还不了解Green.AgileMapper，从这里开始Green.AgileMapper开源项目的使用(1) 和Green.AgileMapper项目(2)-新增DO和DTO代码生成，项目地址：CodePlex http://agilemapper.codeplex.com/)，本项目在后期会针对领域建模提供设计时候支持，利用EF和NHibernate作为底层ORM框架产生自己的领域框架，在设计时才会采用这些组件。
在我们的领域驱动开发中，DomainObject（领域对象）是一个自然oo对象，存在许多现实世界的关系关联，在我们的View端一个View却可能需要数据并不是所有关联。经常除非特殊的UI模式，我们ViewObject往往都会被弱化，而利用Data Transfer Object代替。我们的dto从do抽取大多时候都是将do 单一Object平面化，对于级联删除更新的集合抽取，非级联集合放弃。Green.ObjectPickUper就是一种由do抽取dto的实现策略，产生符合Green.AgileMapper 映射规则的dto对象。对象抽取可能存在多样性，这里只是实现了默认抽取规则，可能不能满足你的需求，你不需要急，因为在这里采用了策略模式来满足不同抽取算法的需求（ObjectPickUperBase），Green.ObjectPickUper并不依赖Green.AgileMapper你可以自由抽取。
在Green.ObjectPickUper中利用了CodeDom实现代码生成，所以可以支持多语言（如果你还不了解CodeDom可以看这里代码生成技术-目录中CodeDom篇）。
我们看看单元测试看看Green.ObjectPickUper的简洁书写：
测试do对象仍是原对象StudentDo，参考CodePlex http://agilemapper.codeplex.com/
计算
安全
数据库
网络和加速
企业服务
[TestMethod] public void ObjectPickUper_GenCode_Test() { ObjectPickUperManager.Instance.IsSOAObject = false; var str = ObjectPickUperManager.Instance.PickUp<StudenDo>("DTO"); var str1 = ObjectPickUperManager.Instance.PickUp<ContactWay>("DTO"); var str2 = ObjectPickUperManager.Instance.PickUp<KeyValuePair>("DTO"); Assert.IsTrue(!string.IsNullOrEmpty(str)); //验证编译是否正确 CompilerParameters option = new CompilerParameters(); option.GenerateExecutable = false; option.GenerateInMemory = true; option.IncludeDebugInformation = false; option.ReferencedAssemblies.Add("System.dll"); option.ReferencedAssemblies.Add(typeof(System.Linq.IQueryable).Assembly.Location); option.ReferencedAssemblies.Add(typeof(StudenDo).Assembly.Location); option.ReferencedAssemblies.Add(typeof(Green.AgileMapper.CollectionMappingAttribute).Assembly.Location); var result = CodeDomProvider.CreateProvider("c#").CompileAssemblyFromSource(option, str, str1, str2); var assembly = result.CompiledAssembly; Assert.IsFalse(result.Errors.HasErrors, "编译错误"); } 这里采用CodeDom动态编译，查看是否存在编译错误。
生成dto：
namespace Green.AgileMapper.Test { using System; using System.Collections.Generic; using System.Linq; using System.Text; [System.SerializableAttribute()] public class StudenDoDTO : System.ComponentModel.INotifyPropertyChanged, System.ICloneable { private int _ID; private Green.AgileMapper.Test.Sex _Sex; private System.Collections.Generic.List<System.String> _CourseIds; private string _AddressCountry; private string _AddressProvince; private string _AddressStreet; private string _AddressParticular; private Green.AgileMapper.Test.ContactWayDTO _ContactWay; private System.Collections.Generic.List<Green.AgileMapper.Test.KeyValuePairDTO> _Propertys; public int ID { get { return this._ID; } set { if ((this._ID != value)) { this._ID = value; this.OnNotifyPropertyChanged("ID"); } } } public Green.AgileMapper.Test.Sex Sex { get { return this._Sex; } set { if ((this._Sex != value)) { this._Sex = value; this.OnNotifyPropertyChanged("Sex"); } } } [Green.AgileMapper.CollectionMappingAttribute(Name="CourseIds", IsConvertTo=true, IsConvertFrom=true, IsDeleteNotInFromItem=true)] public System.Collections.Generic.List<System.String> CourseIds { get { return this._CourseIds; } set { if ((this._CourseIds != value)) { this._CourseIds = value; this.OnNotifyPropertyChanged("CourseIds"); } } } [Green.AgileMapper.MappingAttribute(Name="Address.Country", IsConvertTo=true, IsConvertFrom=true)] public string AddressCountry { get { return this._AddressCountry; } set { if ((this._AddressCountry != value)) { this._AddressCountry = value; this.OnNotifyPropertyChanged("AddressCountry"); } } } [Green.AgileMapper.MappingAttribute(Name="Address.Province", IsConvertTo=true, IsConvertFrom=true)] public string AddressProvince { get { return this._AddressProvince; } set { if ((this._AddressProvince != value)) { this._AddressProvince = value; this.OnNotifyPropertyChanged("AddressProvince"); } } } [Green.AgileMapper.MappingAttribute(Name="Address.Street", IsConvertTo=true, IsConvertFrom=true)] public string AddressStreet { get { return this._AddressStreet; } set { if ((this._AddressStreet != value)) { this._AddressStreet = value; this.OnNotifyPropertyChanged("AddressStreet"); } } } [Green.AgileMapper.MappingAttribute(Name="Address.Particular", IsConvertTo=true, IsConvertFrom=true)] public string AddressParticular { get { return this._AddressParticular; } set { if ((this._AddressParticular != value)) { this._AddressParticular = value; this.OnNotifyPropertyChanged("AddressParticular"); } } } [Green.AgileMapper.ObjectMappingAttribute(Name="ContactWay")] public Green.AgileMapper.Test.ContactWayDTO ContactWay { get { return this._ContactWay; } set { if ((this._ContactWay != value)) { this._ContactWay = value; this.OnNotifyPropertyChanged("ContactWay"); } } } [Green.AgileMapper.CollectionMappingAttribute(Name="Propertys", IsConvertTo=true, IsConvertFrom=true, IsDeleteNotInFromItem=true, EqualExpression=null)] public System.Collections.Generic.List<Green.AgileMapper.Test.KeyValuePairDTO> Propertys { get { return this._Propertys; } set { if ((this._Propertys != value)) { this._Propertys = value; this.OnNotifyPropertyChanged("Propertys"); } } } public event System.ComponentModel.PropertyChangedEventHandler PropertyChanged; public void OnNotifyPropertyChanged(string property) { if ((this.PropertyChanged != null)) { this.PropertyChanged(this, new System.ComponentModel.PropertyChangedEventArgs(property)); } } public object Clone() { StudenDoDTO cloneObj; cloneObj = new StudenDoDTO(); cloneObj._ID = this.ID; cloneObj._Sex = this.Sex; System.Collections.Generic.List<System.String> CourseIdsList; CourseIdsList = new System.Collections.Generic.List<System.String>(); if ((this.CourseIds != null)) { int i; for (i = 0; (i < this.CourseIds.Count); i = (i + 1)) { CourseIdsList.Add(this.CourseIds[i]); } } cloneObj._CourseIds = CourseIdsList; cloneObj._AddressCountry = this.AddressCountry; cloneObj._AddressProvince = this.AddressProvince; cloneObj._AddressStreet = this.AddressStreet; cloneObj._AddressParticular = this.AddressParticular; cloneObj._ContactWay = ((Green.AgileMapper.Test.ContactWayDTO)(this.ContactWay.Clone())); System.Collections.Generic.List<Green.AgileMapper.Test.KeyValuePairDTO> PropertysList; PropertysList = new System.Collections.Generic.List<Green.AgileMapper.Test.KeyValuePairDTO>(); if ((this.Propertys != null)) { int i; for (i = 0; (i < this.Propertys.Count); i = (i + 1)) { PropertysList.Add(((Green.AgileMapper.Test.KeyValuePairDTO)(this.Propertys[i].Clone()))); } } cloneObj._Propertys = PropertysList; return cloneObj; } } } 源代码参加：CodePlex http://agilemapper.codeplex.com/
其他相关博文：
1：Green.AgileMapper开源项目的使用(1)
2：Green.AgileMapper项目(2)-新增DO和DTO代码生成
3：代码生成技术-目录
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