AutoMapper并将日期时间转换为字符串 [英] AutoMapper and convert a datetime to string

问题描述

我无法理解以下问题.我感觉这是LINQ和表达式树的限制，但不确定如何接受lambda主体.我可以在不创建自定义转换器的情况下实现这一目标吗?

I can't get my head round the following issue. I have a feeling it is a limitation of LINQ and expression trees, but not sure how to accept the lambda body. Can I achieve this WITHOUT creating a custom converter?

 Mapper.CreateMap<I_NEWS, NewsModel>()                  
              .ForMember(x => x.DateCreated, opt => opt.MapFrom(src => {
                  var dt = (DateTime)src.DateCreated;
                  return dt.ToShortDateString();                      
              }));

我收到此错误: 带有语句主体的lambda表达式无法转换为表达式树

推荐答案

尝试一下:

Mapper.CreateMap<I_NEWS, NewsModel>().ForMember(x => x.DateCreated,
  opt => opt.MapFrom(src => ((DateTime)src.DateCreated).ToShortDateString()));

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