[英]AutoMapper Enum to byte with implemention IMapperConfigurator
枚舉定義是
public enum RowStatusEnum
{
Modified = 1,
Removed = 2,
Added = 3
}
public class RowStatusEnumConvertor : IMapperConfigurator
{
public void Cofigure()
{
Mapper.CreateMap<RowStatusEnum, byte>();
Mapper.CreateMap<byte, RowStatusEnum >();
}
}
我在 RowStatusEnumConvertor 類中使用實施 IMapperConfigurator 配置 autoMapper,但不能使用此代碼並且不能映射此類型,我認為我的配置不正確或不夠,請幫助我
謝謝
這樣的事情對你有用嗎?
類.cs
namespace StackOverflow.RowStatus
{
public enum RowStatusEnum
{
Modified = 1,
Removed = 2,
Added = 3
}
}
AutoMapperConfigurator.cs
namespace StackOverflow.RowStatus
{
using System;
using System.Linq;
using AutoMapper;
public class MyProfile : Profile
{
protected override void Configure()
{
Mapper.CreateMap<byte, RowStatusEnum>().ConvertUsing(
x => Enum.GetValues(typeof(RowStatusEnum))
.Cast<RowStatusEnum>().First(y => (byte)y == x));
Mapper.CreateMap<RowStatusEnum, byte>().ConvertUsing(
x => (byte)x);
}
}
}
MappingTests.cs
namespace StackOverflow.RowStatus
{
using AutoMapper;
using NUnit.Framework;
[TestFixture]
public class MappingTests
{
[Test]
public void AutoMapper_Configuration_IsValid()
{
Mapper.Initialize(m => m.AddProfile<MyProfile>());
Mapper.AssertConfigurationIsValid();
}
[TestCase(1, Result = RowStatusEnum.Modified)]
[TestCase(2, Result = RowStatusEnum.Removed)]
[TestCase(3, Result = RowStatusEnum.Added)]
public RowStatusEnum AutoMapper_ConvertFromByte_IsValid(
byte rowStatusEnum)
{
Mapper.Initialize(m => m.AddProfile<MyProfile>());
Mapper.AssertConfigurationIsValid();
return Mapper.Map<byte, RowStatusEnum>(rowStatusEnum);
}
[TestCase(RowStatusEnum.Modified, Result = 1)]
[TestCase(RowStatusEnum.Removed, Result = 2)]
[TestCase(RowStatusEnum.Added, Result = 3)]
public byte AutoMapper_ConvertFromEnum_IsValid(
RowStatusEnum rowStatusEnum)
{
Mapper.Initialize(m => m.AddProfile<MyProfile>());
Mapper.AssertConfigurationIsValid();
return Mapper.Map<RowStatusEnum, byte>(rowStatusEnum);
}
}
}
從 Automapper 的第9
版開始,初始化發生了變化,導致上述示例過時。 我更新了上面的示例並保留了原始值以引用舊版本(NUnit 3.12.0
):
行狀態枚舉
namespace StackOverflow.RowStatus
{
public enum RowStatusEnum
{
Modified = 1,
Removed = 2,
Added = 3
}
}
AutoMapperConfigurator.cs
namespace StackOverflow.RowStatus
{
using System;
using System.Linq;
using AutoMapper;
public class MyProfile : Profile
{
public MyProfile()
{
CreateMap<byte, RowStatusEnum>().ConvertUsing(
x => Enum.GetValues(typeof(RowStatusEnum))
.Cast<RowStatusEnum>().First(y => (byte)y == x));
CreateMap<RowStatusEnum, byte>().ConvertUsing(
x => (byte)x);
}
}
}
映射測試
namespace StackOverflow.RowStatus
{
using AutoMapper;
using NUnit.Framework;
[TestFixture]
public class MappingTests
{
[Test]
public void AutoMapper_Configuration_IsValid()
{
var config = new MapperConfiguration(cfg => cfg.AddProfile<MyProfile>());
config.AssertConfigurationIsValid();
}
[TestCase(1, ExpectedResult = RowStatusEnum.Modified)]
[TestCase(2, ExpectedResult = RowStatusEnum.Removed)]
[TestCase(3, ExpectedResult = RowStatusEnum.Added)]
public RowStatusEnum AutoMapper_ConvertFromByte_IsValid(
byte rowStatusEnum)
{
var config = new MapperConfiguration(cfg => cfg.AddProfile<MyProfile>());
var mapper = config.CreateMapper();
return mapper.Map<byte, RowStatusEnum>(rowStatusEnum);
}
[TestCase(RowStatusEnum.Modified, ExpectedResult = 1)]
[TestCase(RowStatusEnum.Removed, ExpectedResult = 2)]
[TestCase(RowStatusEnum.Added, ExpectedResult = 3)]
public byte AutoMapper_ConvertFromEnum_IsValid(
RowStatusEnum rowStatusEnum)
{
var config = new MapperConfiguration(cfg => cfg.AddProfile<MyProfile>());
var mapper = config.CreateMapper();
return mapper.Map<RowStatusEnum, byte>(rowStatusEnum);
}
}
}
我已經重現了你的問題。 解決方法很簡單,不用配置AutoMapper,把枚舉的基類型設置為byte。 像這樣:
public enum RowStatusEnum : byte
{
Modified = 1,
Removed = 2,
Added = 3,
}
讓它工作:
byte x = 3;
RowStatusEnum rowStatus = Mapper.Map<RowStatusEnum>(x);
//The result will be: Added
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