blocks|key|560978|text|请参见schdr的IgnoreAllNonExisting()扩展：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|560979|AutoMapper：“忽略其余的”？|offset|length|560980|public+static+IMappingExpression<TSource,+TDestination>+
++++IgnoreAllNonExisting<TSource,+TDestination>(this+IMappingExpression<TSource,+TDestination>+expression)
{
++++var+sourceType+=+typeof+(TSource);
++++var+destinationType+=+typeof+(TDestination);
++++var+existingMaps+=+Mapper.GetAllTypeMaps().First(x+=>+x.SourceType.Equals(sourceType)+&&+x.DestinationType.Equals(destinationType));
++++foreach+(var+property+in+existingMaps.GetUnmappedPropertyNames())
++++{
++++++++expression.ForMember(property,+opt+=>+opt.Ignore());
++++}
++++return+expression;
}|code-block|syntax|javascript|560981|用法：|560982|Mapper.CreateMap<SourceType,+DestinationType>()
++++++++++++++++.IgnoreAllNonExisting();|560983|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/954480/automapper-ignore-the-rest^0|0|0|J|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|X|8|@]|9|@$D|Y|E|Z|1|10]]|A|$]]|$1|F|3|G|5|H|7|11|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|12|8|@]|9|@]|A|$]]|$1|M|3|N|5|H|7|13|8|@]|9|@]|A|$I|J]]|$1|O|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]]]

See the IgnoreAllNonExisting() extension by schdr here: 
<a href="https://stackoverflow.com/questions/954480/automapper-ignore-the-rest">AutoMapper: &quot;Ignore the rest&quot;?</a>

<pre><code>public static IMappingExpression&lt;TSource, TDestination&gt; 
 IgnoreAllNonExisting&lt;TSource, TDestination&gt;(this IMappingExpression&lt;TSource, TDestination&gt; expression)
{
 var sourceType = typeof (TSource);
 var destinationType = typeof (TDestination);
 var existingMaps = Mapper.GetAllTypeMaps().First(x =&gt; x.SourceType.Equals(sourceType) &amp;&amp; x.DestinationType.Equals(destinationType));
 foreach (var property in existingMaps.GetUnmappedPropertyNames())
 {
 expression.ForMember(property, opt =&gt; opt.Ignore());
 }
 return expression;
}
</code></pre>

Usage:

<pre><code>Mapper.CreateMap&lt;SourceType, DestinationType&gt;()
 .IgnoreAllNonExisting();
</code></pre>

blocks|key|78584|text|现在有了一种方法FindTypeMapFor，它使这个扩展方法更小(并且更高效？)：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|78585|public+static+IMappingExpression<TSource,+TDestination>+IgnoreAllNonMapped<TSource,+TDestination>(this+IMappingExpression<TSource,+TDestination>+expression)
++++{
++++++++foreach+(var+property+in+Mapper.FindTypeMapFor<TSource,+TDestination>().GetUnmappedPropertyNames())
++++++++{
++++++++++++expression.ForMember(property,+opt+=>+opt.Ignore());
++++++++}
++++++++return+expression;
++++}|code-block|syntax|javascript|78586|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

There's now a method FindTypeMapFor which makes this extension method even smaller (and more efficient?):

<pre><code>public static IMappingExpression&lt;TSource, TDestination&gt; IgnoreAllNonMapped&lt;TSource, TDestination&gt;(this IMappingExpression&lt;TSource, TDestination&gt; expression)
 {
 foreach (var property in Mapper.FindTypeMapFor&lt;TSource, TDestination&gt;().GetUnmappedPropertyNames())
 {
 expression.ForMember(property, opt =&gt; opt.Ignore());
 }
 return expression;
 }
</code></pre>

blocks|key|78594|text|我也有同样的问题，在寻求帮助的时候遇到了这个老问题。最后我想出了下面的解决方案。也许这对其他人有帮助。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|78595|我有几个从基类派生出来的类。我希望从基类派生的任何类的所有映射中排除该基类的一个属性。在创建映射(并且没有指定任何忽略选项)之后，我执行以下操作：|78596|foreach(var+map+in+Mapper.GetAllTypeMaps())
{
++++if+(typeof(MyBaseClass).IsAssignableFrom(map.DestinationType))
++++{
++++++++var+propInfo+=+map.DestinationType.GetProperty("PropertyToIgnore");
++++++++if+(propInfo+!=+null)+{
++++++++++++map.FindOrCreatePropertyMapFor(new+AutoMapper.Impl.PropertyAccessor(propInfo)).Ignore();
++++++++}
++++}
}|code-block|syntax|javascript|78597|这是一个有点蛮力，因为我必须循环所有类型的地图，但它完成了工作。|78598|编辑:将缺失的{添加到if语句中|78599|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

I had the same issue and came across this old question while searching for help. I ended up coming up with the following solution. Maybe it's helpful to someone else...

I have several classes derived from a base class. I want to exclude a property of that base class from all mappings of any class that derives from the base. After creating my mappings (and without specifying any ignore options), I do this:

<pre><code>foreach(var map in Mapper.GetAllTypeMaps())
{
 if (typeof(MyBaseClass).IsAssignableFrom(map.DestinationType))
 {
 var propInfo = map.DestinationType.GetProperty("PropertyToIgnore");
 if (propInfo != null) {
 map.FindOrCreatePropertyMapFor(new AutoMapper.Impl.PropertyAccessor(propInfo)).Ignore();
 }
 }
}
</code></pre>

It's a little brute force because I have to loop through all the type maps, but it gets the job done.

edit: Added a missing { to the if statement

blocks|key|561009|text|您可以忽略所有未映射的全局属性。虽然这与automapper的主要优点相矛盾，但只允许进行显式映射:这是Automapper+6的：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|561010|++++var+mapperConfiguration+=+new+MapperConfiguration(cfg+=>
++++{
++++++++cfg.AddProfile(new+MyProfile());
++++++++//+ignore+all+unmapped+properties+globally
++++++++cfg.ForAllMaps((map,+exp)+=>+exp.ForAllOtherMembers(opt+=>+opt.Ignore()));
++++});|code-block|syntax|javascript|561011|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can ignore all unmapped properties globally.
Although this contradict the main benefit of automapper, allows to make explicit mapping only:
This is for Automapper 6:

<pre><code> var mapperConfiguration = new MapperConfiguration(cfg =&gt;
 {
 cfg.AddProfile(new MyProfile());
 // ignore all unmapped properties globally
 cfg.ForAllMaps((map, exp) =&gt; exp.ForAllOtherMembers(opt =&gt; opt.Ignore()));
 });
</code></pre>

blocks|key|272383|text|我不确定哪个版本添加了属性，但现在您可以这样做。文档。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|272384|[Ignore]
public+string+Property+{+get;+set;+}|code-block|syntax|javascript|272385|这种方法的问题是跨域实体泄漏AutoMapper实现，这并不好。|272386|更好的方法似乎是全局地在MapperConfiguration上设置筛选，方法是定义您自己的ShouldMapProperty委托，或者附加到默认实现的条件上。文档。|style|CODE|272387|var+configuration+=+new+MapperConfiguration(cfg+=>
{
++++cfg.ShouldMapField+=+...;

++++cfg.ShouldMapProperty+=+...;
});|272388|编写本报告时的默认实现是这里。值得注意的是，如果不指定为ShouldMapProperty，则p+=>+p.IsPublic()会后退。所以你可以做p+=>+p.IsPublic()+&&+p.DeclaringType+!=+typeof(SomeBaseType)+&&+p.Name+==+nameof(SomeBaseType.SomePropertyToIgnore)。|272389|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.automapper.org/en/stable/Attribute-mapping.html#ignoring-members|1|https://docs.automapper.org/en/stable/Configuration.html#global-property-field-filtering|2|https://github.com/AutoMapper/AutoMapper/blob/51d6c29dc4fbd690529ae83c70799178893e64e5/src/AutoMapper/ProfileMap.cs#L36^0|O|2|0|0|0|0|C|J|1A|H|28|2|1|0|0|S|H|1B|H|22|37|C|2|2|0^^$0|@$1|2|3|4|5|6|7|14|8|@]|9|@$A|15|B|16|1|17]]|C|$]]|$1|D|3|E|5|F|7|18|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|19|8|@]|9|@]|C|$]]|$1|K|3|L|5|6|7|1A|8|@$A|1B|B|1C|M|N]|$A|1D|B|1E|M|N]]|9|@$A|1F|B|1G|1|1H]]|C|$]]|$1|O|3|P|5|F|7|1I|8|@]|9|@]|C|$G|H]]|$1|Q|3|R|5|6|7|1J|8|@$A|1K|B|1L|M|N]|$A|1M|B|1N|M|N]|$A|1O|B|1P|M|N]]|9|@$A|1Q|B|1R|1|1S]]|C|$]]|$1|S|3|-4|5|6|7|1T|8|@]|9|@]|C|$]]]|T|$U|$5|V|W|X|C|$Y|Z]]|10|$5|V|W|X|C|$Y|11]]|12|$5|V|W|X|C|$Y|13]]]]

I'm not sure which version added attributes, but these days you can do this. <a href="https://docs.automapper.org/en/stable/Attribute-mapping.html#ignoring-members" rel="nofollow noreferrer">Docs</a>.
<pre class="lang-cs prettyprint-override"><code>[Ignore]
public string Property { get; set; }
</code></pre>
Problem with that approach is you leak AutoMapper implementation across domain entities, which isn't great.
A better approach seems to be to setup filtering on the <code>MapperConfiguration</code> globally, by defining your own <code>ShouldMapProperty</code> delegate, or tacking on a condition to the default implementation. <a href="https://docs.automapper.org/en/stable/Configuration.html#global-property-field-filtering" rel="nofollow noreferrer">Docs</a>.
<pre><code>var configuration = new MapperConfiguration(cfg =&gt;
{
 cfg.ShouldMapField = ...;

 cfg.ShouldMapProperty = ...;
});
</code></pre>
The default implementations at time of writing are <a href="https://github.com/AutoMapper/AutoMapper/blob/51d6c29dc4fbd690529ae83c70799178893e64e5/src/AutoMapper/ProfileMap.cs#L36" rel="nofollow noreferrer">here</a>. Notably, <code>ShouldMapProperty</code> falls back if not specified to <code>p =&gt; p.IsPublic()</code>. So you could do <code>p =&gt; p.IsPublic() &amp;&amp; p.DeclaringType != typeof(SomeBaseType) &amp;&amp; p.Name == nameof(SomeBaseType.SomePropertyToIgnore)</code>.

Here is how it looks like right now. DestinationA and DestinationB are derived from some DestinationBase class. And I need to ignore some common properties for all these derived class. Is there anyway to apply these ignore options globally without having to repeat for all derived destination classes?

<pre><code>Mapper.CreateMap&lt;SourceA, DestinationA&gt;()
 .ForMember(d =&gt; d.PropA, opt =&gt; opt.Ignore())
 .ForMember(d =&gt; d.PropB, opt =&gt; opt.Ignore())
 .ForMember(d =&gt; d.PropC, opt =&gt; opt.Ignore());

Mapper.CreateMap&lt;SourceB, DestinationB&gt;()
 .ForMember(d =&gt; d.PropA, opt =&gt; opt.Ignore())
 .ForMember(d =&gt; d.PropB, opt =&gt; opt.Ignore())
 .ForMember(d =&gt; d.PropC, opt =&gt; opt.Ignore());
</code></pre>

I am expecting something like this:

<pre><code>Mapper.CreateMap&lt;DestinationBase&gt;().ForAllSource()
 .ForMember(d =&gt; d.PropA, opt =&gt; opt.Ignore())
 .ForMember(d =&gt; d.PropB, opt =&gt; opt.Ignore())
 .ForMember(d =&gt; d.PropC, opt =&gt; opt.Ignore());
</code></pre>

How to use Ignore globally in AutoMapper?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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下面是现在的样子。DestinationA和DestinationB是从某些DestinationBase类派生出来的。我需要忽略所有这些派生类的一些公共属性。全局是否可以应用这些忽略选项，而不必对所有派生目标类重复使用？Mapper.CreateMap<SourceA, DestinationA>() .F...

问如何在AutoMapper中使用全局忽略？
EN

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问如何在AutoMapper中使用全局忽略？EN