我尝试使用自动映射器创建自定义类型转换器,但我无法开始工作 - 甚至无法编译。
这是我的自定义转换器:
public class WorkPlanToWorkingTimeListConverter : ITypeConverter<TPWorkPlanDTO, IEnumerable<WorkingTime>>
{
public IEnumerable<WorkingTime> Convert(TPWorkPlanDTO source, IEnumerable<WorkingTime> destination, ResolutionContext context)
{
if (source == null)
{
return Enumerable.Empty<WorkingTime>();
}
return (IEnumerable<WorkingTime>)source.Weeks.SelectMany(week => week.Days.SelectMany(day => day.Shifts));
}
}
我正在尝试像这样连接它:
CreateMap<TPWorkPlanDTO, List<WorkingTime>>()
.ConvertUsing<WorkPlanToWorkingTimeConverter>();
但我收到此错误:
类型“Mapping.Converter.WorkPlanToWorkingTimeListConverter”不能用作泛型类型或方法“IMappingExpressionBase
>.ConvertUsing()”中的类型参数“TTypeConverter”。没有从“Mapping.Converter.WorkPlanToWorkingTimeListConverter”到“AutoMapper.ITypeConverter >”的隐式引用转换。
我尝试了一些
ConvertUsing()
获取类型的重载,但我就是无法编译它。
在下面我附上了我的 DTO 和我需要映射的模型:
namespace Mapping.DTO;
public class TPWorkPlanDTO
{
public class TPWorkingTimeDTO
{
public int worktime_id { get; set; }
public DateTime start_time { get; set; }
public DateTime end_time { get; set; }
}
public class TPWorkPlanDay
{
public IEnumerable<TPWorkingTimeDTO> Shifts { get; set; }
}
public class TPWorkPlanWeek
{
public IEnumerable<TPWorkPlanDay> Days { get; set; }
}
public IEnumerable<TPWorkPlanWeek> Weeks { get; set; }
}
namespace Models;
public class WorkingTime
{
public int Id { get; set; }
public DateTime StartTime { get; set; }
public DateTime EndTime { get; set; }
}
WorkPlanToWorkingTimeListConverter : ITypeConverter<TPWorkPlanDTO, IEnumerable<WorkingTime>>
定义到 IEnumarable<...>
的映射。由于泛型类型 T1<T2, IEnumerable<T3>>
与 T1<T2, List<T3>>
不同,因此需要将此转换器用作到 IEnumerable<...>
的映射,而不是到 List<...>
:
CreateMap<TPWorkPlanDTO, IEnumerable<WorkingTime>>()
.ConvertUsing<WorkPlanToWorkingTimeConverter>();