Question

我不明白为什么这不起作用？两个字段在destinationDTO上映射为NULL。使用AutoMapper v4.1.1

[TestFixture]
public class AutoMapperTests
{
    [SetUp]
    public void Init()
    {
        AutoMapperTestConfiguration.Configure();
    }

    [Test]
    public void Mapping_With_Underscores()
    {
        SourceDTO source = new SourceDTO
        {
            first_name = "John",
            last_name = "Doe"
        };

        var result = Mapper.Map<DestinationDTO>(source);

        Assert.That(result.FirstName == "John");
    }
}


public class SourceDTO
{
    public string first_name { get; set; }
    public string last_name { get; set; }
}

public class DestinationDTO
{
    public string FirstName { get; set; }
    public string LastName { get; set; }
}

public class AutoMapperTestConfiguration
{
    public static void Configure()
    {
        Mapper.Initialize(x =>
        {
            x.AddProfile<FromUnderscoreMapping>();
        });
    }
}

public class FromUnderscoreMapping : Profile
{
    protected override void Configure()
    {
        this.SourceMemberNamingConvention = new LowerUnderscoreNamingConvention();
        this.DestinationMemberNamingConvention = new PascalCaseNamingConvention();

        Mapper.CreateMap<SourceDTO, DestinationDTO>();
    }
}

Answer 1

哎呀，这让我有一段时间了。问题出在这一行

Mapper.CreateMap<SourceDTO, DestinationDTO>();

我正在调用全局AutoMapper实例，而不是具有覆盖命名约定的继承Profile。只需删除Mapper就可以解决问题。

CreateMap<SourceDTO, DestinationDTO>();

我在这个上花了很多时间。

为什么这个AutoMapper映射不起作用？

1 个答案: