使用Automapper时如何忽略特定类型的属性?

问题描述

让我们假设我有两种类型:

Let's suppose that I have two types:

class Type1
{
    public int Prop1 { get; set; }
    public string Prop2 { get; set; }
    public string Prop3 { get; set; }
}

class Type2
{
    public int Prop1 { get; set; }
    public string Prop2 { get; set; }
    public TypeToIgnore Prop3 { get; set; }
}

我想在这两种类型之间进行映射，但是忽略所有具有TypeToIgnore的属性.这是因为我正在使用反射来遍历所有这些对象，并在它们上进行一些自定义映射.

I want to map between these two types, but ignoring all the properties that have a TypeToIgnore. This is because I am iterating through all of them using reflection and make some custom mappings on them.

在从Profile派生的类中，我可以为不想映射的每个成员添加一个Ignore，如下所示:

Within a class which derives from Profile, I could add an Ignore for each member that I don't want to be mapped, like this:

CreateMap<Type2, Type1>().ForMember(x => x.Prop3, y => y.Ignore());

或者我可以在要忽略的属性上使用IgnoreMapAttribute，但是考虑到在生产代码上我有很多，是否有一种更简单的方法可以完全忽略某些特定类型?

Or I could use the IgnoreMapAttribute on the properties to be ignored, but considering that on the production code, I have plenty of them, is there a much easier way to ignore some specific types at all?

推荐答案

您可以在配置中使用ShouldMapProperty:

 cfg.ShouldMapProperty = p => p.PropertyType != typeof(string);

此官方文档位于此处.真正由您发出的原始功能请求.

Official docs on this here. Original feature request by yours truly.

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