如果你还不了解Green.AgileMapper的用意，作用请先一步到上篇Green.AgileMapper开源项目的使用，如果你觉得运行时（Runtime）的Mapper效率存在问题，在这个版本中有了更新，新增了C#直接代码的生成，这里的生成都已3.0后的扩展方法实现，你可以很方便的一句代码实现两者的转化。
代码生成我本想利用T4模板，但是由于我们的项目IDE版本是VS2008，对于T4的参数传递支持还不是很友好，你可能说用AppDomain.SetData,或者CallContext.LogicalSetData，但是可惜我们的饿MappingRule是不可序列化的，所以最后我只得采用了字符串拼接最笨的办法，为了应对生成策略不同，在这里我们加入了策略模式来应付，来看看代码结构吧：
在这里只支持对do的二级属性映射为dto的平面属性，全部针对IMappingRule生成代码，在这里为了生成合法的代码而非表达式，对以前的表达式进行了重新的标准约定，在代码注释。以及对上个版本的List转换进行了多次重载，主要为了满足DTo到DO对象的特殊要求，因为我们在领域开发存储DTO的时候都是需要先取出DO对象在根据DTO在DO对象的基础上进行修改，以便ORM领域框架或者UOW的跟踪记录。
下面看看任然是上个测试类模型的代码生成（在这里测试DO，DTO类进行了重构为了更全面的测试，具体请看CodePlex http://agilemapper.codeplex.com/代码）：
计算
安全
数据库
网络和加速
企业服务
StudenDo stu = new StudenDo() { ID = 1, Name = "test1", Sex = Sex.女, Address = new Address() { Country = "中国", Province = "四川", Street = "高新区" }, CourseIds = new List<string>() { "1", "2", "3" }, Propertys = new List<KeyValuePair>() { new KeyValuePair() { Key = "1", Value = "1" } }, ContactWay = new ContactWay() { Phone = "1111111111111111", Email = "xxxx@12f", QQ = "7889789999889" } }; Func<StudenDo, StudenDo, bool> fun = (f, j) => f.ID == j.ID; var s = fun.ToString(); var mapper = ObjectMapperManager.Default.GetMapper<StudenDto, StudenDo>(); mapper.AgileMapperTemplateStrategy.DefaultEqualExpression = "{0}.ID == {1}.ID && {1}.ID != 0"; var str1 = mapper.CodeGenerator(); System.IO.File.Delete(@"E:\Project\OpenSource\AgileMapper\AgileMappper.Test\CodeTemplate.Test\1.cs"); System.IO.File.AppendAllText(@"E:\Project\OpenSource\AgileMapper\AgileMappper.Test\CodeTemplate.Test\1.cs", str1); var mapper1 = ObjectMapperManager.Default.GetMapper<ContactWayDto, ContactWay>(); str1 = mapper1.CodeGenerator(); System.IO.File.Delete(@"E:\Project\OpenSource\AgileMapper\AgileMappper.Test\CodeTemplate.Test\2.cs"); System.IO.File.AppendAllText(@"E:\Project\OpenSource\AgileMapper\AgileMappper.Test\CodeTemplate.Test\2.cs", str1); var mapper2 = ObjectMapperManager.Default.GetMapper<KeyValuePairDto, KeyValuePair>(); str1 = mapper2.CodeGenerator(); System.IO.File.Delete(@"E:\Project\OpenSource\AgileMapper\AgileMappper.Test\CodeTemplate.Test\3.cs"); System.IO.File.AppendAllText(@"E:\Project\OpenSource\AgileMapper\AgileMappper.Test\CodeTemplate.Test\3.cs", str1); 最后的生成文件：
1.cs: using System; using System.Linq; using System.Data; using System.Collections.Generic; namespace Green.AgileMapper { public static partial class AgileMapperMapping { /// <summary> /// Green.AgileMapper.Test.StudenDto Warp fromObj Green.AgileMapper.Test.StudenDo; /// </summary> /// <param name="domainObj">Green.AgileMapper.Test.StudenDo</param> /// <returns>Green.AgileMapper.Test.StudenDto</returns> public static Green.AgileMapper.Test.StudenDto Warp(this Green.AgileMapper.Test.StudenDo domainObj) { var fromObj = new Green.AgileMapper.Test.StudenDto(); fromObj.ID = domainObj.ID; fromObj.Name = domainObj.Name; fromObj.Sex = domainObj.Sex; if (domainObj.Address != null) { fromObj.Country = domainObj.Address.Country; fromObj.Province = domainObj.Address.Province; } fromObj.Particular = domainObj.Address.Country + " 国籍 " + domainObj.Address.Province + " 省 "; fromObj.FirstPropertyKey = domainObj.Propertys[0].Key; if (domainObj.ContactWay != null) { fromObj.ContactWay = domainObj.ContactWay.Warp(); } if (domainObj.CourseIds != null) { fromObj.CourseIds = new List<System.String>(); foreach (var item_CourseIds in domainObj.CourseIds) { fromObj.CourseIds.Add(item_CourseIds); } } if (domainObj.Propertys != null) { fromObj.Propertys = domainObj.Propertys.Warp(); } return fromObj; } /// <summary> /// Green.AgileMapper.Test.StudenDto Warp domainObj Green.AgileMapper.Test.StudenDo; /// </summary> /// <param name="domainObj">Green.AgileMapper.Test.StudenDo</param> /// <returns>fromObj</returns> public static void Warp(this Green.AgileMapper.Test.StudenDto fromObj, Green.AgileMapper.Test.StudenDo domainObj) { if (fromObj == null) { return; } if (domainObj == null) { domainObj = new Green.AgileMapper.Test.StudenDo(); } domainObj.ID = fromObj.ID; domainObj.Name = fromObj.Name; domainObj.Sex = fromObj.Sex; if (domainObj.Address == null) { domainObj.Address = new Green.AgileMapper.Test.Address(); } domainObj.Address.Country = fromObj.Country; domainObj.Address.Province = fromObj.Province; if (domainObj.ContactWay == null) { domainObj.ContactWay = new Green.AgileMapper.Test.ContactWay(); } fromObj.ContactWay.Warp(domainObj.ContactWay); if (fromObj.CourseIds != null) { if (domainObj.CourseIds == null) { domainObj.CourseIds = new List<System.String>(); } domainObj.CourseIds.Clear(); foreach (var item_CourseIds in fromObj.CourseIds) { domainObj.CourseIds.Add(item_CourseIds); } } if (fromObj.Propertys != null) { if (domainObj.Propertys == null) { domainObj.Propertys = new List<Green.AgileMapper.Test.KeyValuePair>(); } fromObj.Propertys.Warp(domainObj.Propertys, (fromObjItem, domainObjItem) => fromObjItem.Key == domainObjItem.Key, true); } } /// <summary> /// Green.AgileMapper.Test.StudenDto collection Warp fromObj Green.AgileMapper.Test.StudenDo collection; /// </summary> /// <param name="form">Green.AgileMapper.Test.StudenDto collection</param> /// <param name="domainObj">Green.AgileMapper.Test.StudenDo collection</param> public static List<Green.AgileMapper.Test.StudenDto> Warp(this IList<Green.AgileMapper.Test.StudenDo> domainObj) { List<Green.AgileMapper.Test.StudenDto> froms = new List<Green.AgileMapper.Test.StudenDto>(); domainObj.ToList().ForEach(t => { froms.Add(Warp(t)); }); return froms; } /// <summary> /// Green.AgileMapper.Test.StudenDto collection Warp domainObj Green.AgileMapper.Test.StudenDo collection; /// </summary> /// <param name="fromObj">Green.AgileMapper.Test.StudenDto collection</param> /// <param name="domainObj">Green.AgileMapper.Test.StudenDo collection</param> public static void Warp(this IList<Green.AgileMapper.Test.StudenDto> fromObj, IList<Green.AgileMapper.Test.StudenDo> domainObj) { fromObj.Warp(domainObj, (fromObjItem, domainObjItem) => fromObjItem.ID == domainObjItem.ID && domainObjItem.ID != 0, false); } /// <summary> /// Green.AgileMapper.Test.StudenDto collection Warp domainObj Green.AgileMapper.Test.StudenDo collection; /// </summary> /// <param name="fromObj">Green.AgileMapper.Test.StudenDto collection</param> /// <param name="domainObj">Green.AgileMapper.Test.StudenDo collection</param> /// <param name="isDeleteNotInFromItem">Delete the item that not in From collection</param> public static void Warp(this IList<Green.AgileMapper.Test.StudenDto> fromObj, IList<Green.AgileMapper.Test.StudenDo> domainObj, bool isDeleteNotInFromItem) { fromObj.Warp(domainObj, (fromObjItem, domainObjItem) => fromObjItem.ID == domainObjItem.ID && domainObjItem.ID != 0, isDeleteNotInFromItem); } /// <summary> /// Green.AgileMapper.Test.StudenDto collection Warp domainObj Green.AgileMapper.Test.StudenDo collection; /// </summary> /// <param name="fromObj">Green.AgileMapper.Test.StudenDto collection</param> /// <param name="domainObj">Green.AgileMapper.Test.StudenDo collection</param> /// <param name="equalPredicate">the from item equal to item expression</param> public static void Warp(this IList<Green.AgileMapper.Test.StudenDto> fromObj, IList<Green.AgileMapper.Test.StudenDo> domainObj, Func<Green.AgileMapper.Test.StudenDto, Green.AgileMapper.Test.StudenDo, bool> equalPredicate) { fromObj.Warp(domainObj, equalPredicate, false); } /// <summary> /// Green.AgileMapper.Test.StudenDto collection Warp domainObj Green.AgileMapper.Test.StudenDo collection; /// </summary> /// <param name="fromObj">Green.AgileMapper.Test.StudenDto collection</param> /// <param name="domainObj">Green.AgileMapper.Test.StudenDo collection</param> /// <param name="equalPredicate">the from item equal to item expression</param> /// <param name="isDeleteNotInFromItem">Delete the item that not in From collection</param> public static void Warp(this IList<Green.AgileMapper.Test.StudenDto> fromObj, IList<Green.AgileMapper.Test.StudenDo> domainObj, Func<Green.AgileMapper.Test.StudenDto, Green.AgileMapper.Test.StudenDo, bool> equalPredicate, bool isDeleteNotInFromItem) { if (fromObj == null) { return; } if (domainObj == null) { domainObj = new List<Green.AgileMapper.Test.StudenDo>(); } fromObj.ToList().ForEach(fromObjItem => { Green.AgileMapper.Test.StudenDo toItem = default(Green.AgileMapper.Test.StudenDo); if (equalPredicate != null) { toItem = domainObj.SingleOrDefault(domainObjItem => equalPredicate(fromObjItem, domainObjItem)); } if (toItem == null) { toItem = new Green.AgileMapper.Test.StudenDo(); domainObj.Add(toItem); } Warp(fromObjItem, toItem); }); if (isDeleteNotInFromItem) { domainObj.Where(domainObjItem => fromObj.FirstOrDefault(fromObjItem => equalPredicate(fromObjItem, domainObjItem)) == null) .ToList().ForEach(t => { domainObj.Remove(t); }); } } } } 2.cs using System; using System.Linq; using System.Data; using System.Collections.Generic; namespace Green.AgileMapper { public static partial class AgileMapperMapping { /// <summary> /// Green.AgileMapper.Test.ContactWayDto Warp fromObj Green.AgileMapper.Test.ContactWay; /// </summary> /// <param name="domainObj">Green.AgileMapper.Test.ContactWay</param> /// <returns>Green.AgileMapper.Test.ContactWayDto</returns> public static Green.AgileMapper.Test.ContactWayDto Warp(this Green.AgileMapper.Test.ContactWay domainObj) { var fromObj = new Green.AgileMapper.Test.ContactWayDto(); fromObj.Phone = domainObj.Phone; fromObj.Email = domainObj.Email; fromObj.QQ = domainObj.QQ; return fromObj; } /// <summary> /// Green.AgileMapper.Test.ContactWayDto Warp domainObj Green.AgileMapper.Test.ContactWay; /// </summary> /// <param name="domainObj">Green.AgileMapper.Test.ContactWay</param> /// <returns>fromObj</returns> public static void Warp(this Green.AgileMapper.Test.ContactWayDto fromObj, Green.AgileMapper.Test.ContactWay domainObj) { if (fromObj == null) { return; } if (domainObj == null) { domainObj = new Green.AgileMapper.Test.ContactWay(); } domainObj.Phone = fromObj.Phone; domainObj.Email = fromObj.Email; domainObj.QQ = fromObj.QQ; } /// <summary> /// Green.AgileMapper.Test.ContactWayDto collection Warp fromObj Green.AgileMapper.Test.ContactWay collection; /// </summary> /// <param name="form">Green.AgileMapper.Test.ContactWayDto collection</param> /// <param name="domainObj">Green.AgileMapper.Test.ContactWay collection</param> public static List<Green.AgileMapper.Test.ContactWayDto> Warp(this IList<Green.AgileMapper.Test.ContactWay> domainObj) { List<Green.AgileMapper.Test.ContactWayDto> froms = new List<Green.AgileMapper.Test.ContactWayDto>(); domainObj.ToList().ForEach(t => { froms.Add(Warp(t)); }); return froms; } /// <summary> /// Green.AgileMapper.Test.ContactWayDto collection Warp domainObj Green.AgileMapper.Test.ContactWay collection; /// </summary> /// <param name="fromObj">Green.AgileMapper.Test.ContactWayDto collection</param> /// <param name="domainObj">Green.AgileMapper.Test.ContactWay collection</param> public static void Warp(this IList<Green.AgileMapper.Test.ContactWayDto> fromObj, IList<Green.AgileMapper.Test.ContactWay> domainObj) { fromObj.Warp(domainObj, (fromObjItem, domainObjItem) => fromObjItem.Equals(domainObjItem), false); } /// <summary> /// Green.AgileMapper.Test.ContactWayDto collection Warp domainObj Green.AgileMapper.Test.ContactWay collection; /// </summary> /// <param name="fromObj">Green.AgileMapper.Test.ContactWayDto collection</param> /// <param name="domainObj">Green.AgileMapper.Test.ContactWay collection</param> /// <param name="isDeleteNotInFromItem">Delete the item that not in From collection</param> public static void Warp(this IList<Green.AgileMapper.Test.ContactWayDto> fromObj, IList<Green.AgileMapper.Test.ContactWay> domainObj, bool isDeleteNotInFromItem) { fromObj.Warp(domainObj, (fromObjItem, domainObjItem) => fromObjItem.Equals(domainObjItem), isDeleteNotInFromItem); } /// <summary> /// Green.AgileMapper.Test.ContactWayDto collection Warp domainObj Green.AgileMapper.Test.ContactWay collection; /// </summary> /// <param name="fromObj">Green.AgileMapper.Test.ContactWayDto collection</param> /// <param name="domainObj">Green.AgileMapper.Test.ContactWay collection</param> /// <param name="equalPredicate">the from item equal to item expression</param> public static void Warp(this IList<Green.AgileMapper.Test.ContactWayDto> fromObj, IList<Green.AgileMapper.Test.ContactWay> domainObj, Func<Green.AgileMapper.Test.ContactWayDto, Green.AgileMapper.Test.ContactWay, bool> equalPredicate) { fromObj.Warp(domainObj, equalPredicate, false); } /// <summary> /// Green.AgileMapper.Test.ContactWayDto collection Warp domainObj Green.AgileMapper.Test.ContactWay collection; /// </summary> /// <param name="fromObj">Green.AgileMapper.Test.ContactWayDto collection</param> /// <param name="domainObj">Green.AgileMapper.Test.ContactWay collection</param> /// <param name="equalPredicate">the from item equal to item expression</param> /// <param name="isDeleteNotInFromItem">Delete the item that not in From collection</param> public static void Warp(this IList<Green.AgileMapper.Test.ContactWayDto> fromObj, IList<Green.AgileMapper.Test.ContactWay> domainObj, Func<Green.AgileMapper.Test.ContactWayDto, Green.AgileMapper.Test.ContactWay, bool> equalPredicate, bool isDeleteNotInFromItem) { if (fromObj == null) { return; } if (domainObj == null) { domainObj = new List<Green.AgileMapper.Test.ContactWay>(); } fromObj.ToList().ForEach(fromObjItem => { Green.AgileMapper.Test.ContactWay toItem = default(Green.AgileMapper.Test.ContactWay); if (equalPredicate != null) { toItem = domainObj.SingleOrDefault(domainObjItem => equalPredicate(fromObjItem, domainObjItem)); } if (toItem == null) { toItem = new Green.AgileMapper.Test.ContactWay(); domainObj.Add(toItem); } Warp(fromObjItem, toItem); }); if (isDeleteNotInFromItem) { domainObj.Where(domainObjItem => fromObj.FirstOrDefault(fromObjItem => equalPredicate(fromObjItem, domainObjItem)) == null) .ToList().ForEach(t => { domainObj.Remove(t); }); } } } } 3.cs: using System; using System.Linq; using System.Data; using System.Collections.Generic; namespace Green.AgileMapper { public static partial class AgileMapperMapping { /// <summary> /// Green.AgileMapper.Test.KeyValuePairDto Warp fromObj Green.AgileMapper.Test.KeyValuePair; /// </summary> /// <param name="domainObj">Green.AgileMapper.Test.KeyValuePair</param> /// <returns>Green.AgileMapper.Test.KeyValuePairDto</returns> public static Green.AgileMapper.Test.KeyValuePairDto Warp(this Green.AgileMapper.Test.KeyValuePair domainObj) { var fromObj = new Green.AgileMapper.Test.KeyValuePairDto(); fromObj.Key = domainObj.Key; fromObj.Value = domainObj.Value; return fromObj; } /// <summary> /// Green.AgileMapper.Test.KeyValuePairDto Warp domainObj Green.AgileMapper.Test.KeyValuePair; /// </summary> /// <param name="domainObj">Green.AgileMapper.Test.KeyValuePair</param> /// <returns>fromObj</returns> public static void Warp(this Green.AgileMapper.Test.KeyValuePairDto fromObj, Green.AgileMapper.Test.KeyValuePair domainObj) { if (fromObj == null) { return; } if (domainObj == null) { domainObj = new Green.AgileMapper.Test.KeyValuePair(); } domainObj.Key = fromObj.Key; domainObj.Value = fromObj.Value; } /// <summary> /// Green.AgileMapper.Test.KeyValuePairDto collection Warp fromObj Green.AgileMapper.Test.KeyValuePair collection; /// </summary> /// <param name="form">Green.AgileMapper.Test.KeyValuePairDto collection</param> /// <param name="domainObj">Green.AgileMapper.Test.KeyValuePair collection</param> public static List<Green.AgileMapper.Test.KeyValuePairDto> Warp(this IList<Green.AgileMapper.Test.KeyValuePair> domainObj) { List<Green.AgileMapper.Test.KeyValuePairDto> froms = new List<Green.AgileMapper.Test.KeyValuePairDto>(); domainObj.ToList().ForEach(t => { froms.Add(Warp(t)); }); return froms; } /// <summary> /// Green.AgileMapper.Test.KeyValuePairDto collection Warp domainObj Green.AgileMapper.Test.KeyValuePair collection; /// </summary> /// <param name="fromObj">Green.AgileMapper.Test.KeyValuePairDto collection</param> /// <param name="domainObj">Green.AgileMapper.Test.KeyValuePair collection</param> public static void Warp(this IList<Green.AgileMapper.Test.KeyValuePairDto> fromObj, IList<Green.AgileMapper.Test.KeyValuePair> domainObj) { fromObj.Warp(domainObj, (fromObjItem, domainObjItem) => fromObjItem.Equals(domainObjItem), false); } /// <summary> /// Green.AgileMapper.Test.KeyValuePairDto collection Warp domainObj Green.AgileMapper.Test.KeyValuePair collection; /// </summary> /// <param name="fromObj">Green.AgileMapper.Test.KeyValuePairDto collection</param> /// <param name="domainObj">Green.AgileMapper.Test.KeyValuePair collection</param> /// <param name="isDeleteNotInFromItem">Delete the item that not in From collection</param> public static void Warp(this IList<Green.AgileMapper.Test.KeyValuePairDto> fromObj, IList<Green.AgileMapper.Test.KeyValuePair> domainObj, bool isDeleteNotInFromItem) { fromObj.Warp(domainObj, (fromObjItem, domainObjItem) => fromObjItem.Equals(domainObjItem), isDeleteNotInFromItem); } /// <summary> /// Green.AgileMapper.Test.KeyValuePairDto collection Warp domainObj Green.AgileMapper.Test.KeyValuePair collection; /// </summary> /// <param name="fromObj">Green.AgileMapper.Test.KeyValuePairDto collection</param> /// <param name="domainObj">Green.AgileMapper.Test.KeyValuePair collection</param> /// <param name="equalPredicate">the from item equal to item expression</param> public static void Warp(this IList<Green.AgileMapper.Test.KeyValuePairDto> fromObj, IList<Green.AgileMapper.Test.KeyValuePair> domainObj, Func<Green.AgileMapper.Test.KeyValuePairDto, Green.AgileMapper.Test.KeyValuePair, bool> equalPredicate) { fromObj.Warp(domainObj, equalPredicate, false); } /// <summary> /// Green.AgileMapper.Test.KeyValuePairDto collection Warp domainObj Green.AgileMapper.Test.KeyValuePair collection; /// </summary> /// <param name="fromObj">Green.AgileMapper.Test.KeyValuePairDto collection</param> /// <param name="domainObj">Green.AgileMapper.Test.KeyValuePair collection</param> /// <param name="equalPredicate">the from item equal to item expression</param> /// <param name="isDeleteNotInFromItem">Delete the item that not in From collection</param> public static void Warp(this IList<Green.AgileMapper.Test.KeyValuePairDto> fromObj, IList<Green.AgileMapper.Test.KeyValuePair> domainObj, Func<Green.AgileMapper.Test.KeyValuePairDto, Green.AgileMapper.Test.KeyValuePair, bool> equalPredicate, bool isDeleteNotInFromItem) { if (fromObj == null) { return; } if (domainObj == null) { domainObj = new List<Green.AgileMapper.Test.KeyValuePair>(); } fromObj.ToList().ForEach(fromObjItem => { Green.AgileMapper.Test.KeyValuePair toItem = default(Green.AgileMapper.Test.KeyValuePair); if (equalPredicate != null) { toItem = domainObj.SingleOrDefault(domainObjItem => equalPredicate(fromObjItem, domainObjItem)); } if (toItem == null) { toItem = new Green.AgileMapper.Test.KeyValuePair(); domainObj.Add(toItem); } Warp(fromObjItem, toItem); }); if (isDeleteNotInFromItem) { domainObj.Where(domainObjItem => fromObj.FirstOrDefault(fromObjItem => equalPredicate(fromObjItem, domainObjItem)) == null) .ToList().ForEach(t => { domainObj.Remove(t); }); } } } } 在这里的代码生产后很乱并未格式化处理，需要我们在VS中自动Ctrl+K+D格式，如果你希望生成时候就帮助格式化了的话，你可以参见工具CoolFormat源代码格式化，安装工具利用CMD命令批量格式化（可以参见百度百科：http://baike.baidu.com/view/4367725.htm）。在项目暂不会考虑这块，如果你有兴趣的可以先帮助完成，谢谢。
具体请参见项目，存在任何问题或者bug可以随时给我留言，谢谢。
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