C# NetCore AutoMapper 忽略映射屬性

在這篇文章中，我将向你展示如何通過AutoMapper自動映射來忽略屬性。假設源和目标都有一個同名的屬性，但用于表示不同的資訊，那麼我們肯定不希望自動映射該屬性。我們可以在AutoMapper中建立映射時進行如下配置。

var config = new MapperConfiguration(cfg => { 
    cfg.CreateMap<Source, Destination>().ForMember(x =>x.DestinationPropertyName, opt => opt.Ignore());
});
           

示例：

var config = new MapperConfiguration(cfg => { 
    cfg.CreateMap<Person, PersonVM>().ForMember(x =>x.Name, opt => opt.Ignore());
});
           

由于AutoMapper支援FluentAPI，如果忽略多個屬性，則可以多次調用FormMember方法，代碼如下：

var config = new MapperConfiguration(cfg => { 
cfg.CreateMap<Foo, FooCopy>()
.ForMember(x =>x.Name, opt => opt.Ignore())
.ForMember(x => x.Age , opt => opt.Ignore() );
});
           

完整代碼示例：

using System;
using AutoMapper;

public class Person
{
	public string Name { get; set; }
	public int Age { get; set; }
	public string Address { get; set; }
	public string Email { get; set; }
	
}

public class PersonVM
{
	
	public string Name { get; set; }
	public int Age { get; set; }
}
public class Program
{
	public static void Main()		
	{
		
		var config = new MapperConfiguration(cfg => { 
			cfg.CreateMap<Person, PersonVM>().ForMember(x =>x.Name, opt => opt.Ignore());
										 
		});
		
		IMapper mapper = config.CreateMapper();
		
				
		var person = new Person { Name="test", Age=10, Email = "[email protected]", Address="Test Address" };
		
		var personVM = mapper.Map<PersonVM>(person);
		
		
		Console.WriteLine("\nperson.Name : {0} \nperson.Age : {1} \nperson.Address : {2} \nperson.Email : {3}", person.Name, person.Age, person.Email, person.Address);
		Console.WriteLine("\npersonVM.Name : {0} \npersonVM.Age : {1} ", personVM.Name, personVM.Age);
	}
}
           

輸出：

person.Name : test 

person.Age : 10 

person.Address : [email protected] 

person.Email : Test Address

personVM.Name :  

personVM.Age : 10

下一篇 忽略大量映射屬性

https://blog.csdn.net/hefeng_aspnet/article/details/124754933