Assuming the Date
is a nullable DateTime
:
Mapper.CreateMap<SomeViewModels, SomeDTO>()
.ForMember(dest => dest.Date,
opt => opt.MapFrom(src =>
{
DateTime? finalDate = null;
if (src.HasDate == "N")
{
// so it should be null
}
else
{
endResult = DateTime.Parse(src.Date.ToString());
}
return finalDate;
}));
The error I got was:
Error 30 A lambda expression with a statement body cannot be converted
to an expression tree.
Of course I'm fully aware that I can simplify the query such as:
Mapper.CreateMap<SomeViewModels, SomeDTO>()
.ForMember(dest => dest.Date,
opt => opt.MapFrom(src => src.HasDate == "N" ? null : DateTime.Parse(src.Date.ToString())));
But what if I insist to retain the structure of the first example, because I have more complicated if else statements, that the second example will not able to cater for, or at least will not be very readable?
See Question&Answers more detail:
os 与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…