AutoMapper封装类

 1 /// <summary>
 2     /// AutoMapper扩展帮助类
 3     /// </summary>
 4     public static class AutoMapperHelper
 5     {
 6         /// <summary>
 7         ///  类型映射
 8         /// </summary>
 9         public static T MapTo<T>(this object obj)
10         {
11             if (obj == null) return default(T);
12             Mapper.CreateMap(obj.GetType(), typeof(T));
13             return Mapper.Map<T>(obj);
14         }
15         /// <summary>
16         /// 集合列表类型映射
17         /// </summary>
18         public static List<TDestination> MapToList<TDestination>(this IEnumerable source)
19         {
20             foreach (var first in source)
21             {
22                 var type = first.GetType();
23                 Mapper.CreateMap(type, typeof(TDestination));
24                 break;
25             }
26             return Mapper.Map<List<TDestination>>(source);
27         }
28         /// <summary>
29         /// 集合列表类型映射
30         /// </summary>
31         public static List<TDestination> MapToList<TSource, TDestination>(this IEnumerable<TSource> source)
32         {
33             //IEnumerable<T> 类型需要创建元素的映射
34             Mapper.CreateMap<TSource, TDestination>();
35             return Mapper.Map<List<TDestination>>(source);
36         }
37         /// <summary>
38         /// 类型映射
39         /// </summary>
40         public static TDestination MapTo<TSource, TDestination>(this TSource source, TDestination destination)
41             where TSource : class
42             where TDestination : class
43         {
44            if (source == null) return destination;
45             Mapper.CreateMap<TSource, TDestination>();
46             return Mapper.Map(source, destination);
47         }
48         /// <summary>
49         /// DataReader映射
50         /// </summary>
51         public static IEnumerable<T> DataReaderMapTo<T>(this IDataReader reader)
52         {
53             Mapper.Reset();
54             Mapper.CreateMap<IDataReader, IEnumerable<T>>();
55             return Mapper.Map<IDataReader, IEnumerable<T>>(reader);
56         }
57     }
58 }