c# - 如何使用 GetType 获取类的类型

Question

我在这里使用 GetType() 来获取 eventData 的类型，如下所示，

public EventDescriptor(Guid id, IEvent eventData)
{
   AggregateId = id;
   EventData = eventData;
   EventType = eventData.GetType().AssemblyQualifiedName;
}

返回:

 "EventType":  
 "Shared.Events.EntityCreatedEvent`1[[Shared.Model.Dto.EntityDto, Shared,  
  Version=1.0.6928.25697, Culture=neutral, PublicKeyToken=null]], Shared,  
  Version=1.0.6928.25697, Culture=neutral, PublicKeyToken=null"

我怎样才能从上面只得到 Shared.Model.Dto.EntityDto？
有没有可用的方法或属性？

Answer 1

试试 Type.FullName 来获得你需要的 - https://learn.microsoft.com/de-de/dotnet/api/system.type.fullname?view=netframework-4.7.2

所以在你的情况下 -

public EventDescriptor(Guid id, IEvent eventData)
 {
   AggregateId = id;
   EventData = eventData;
   EventType = eventData.GetType().FullName;
}

如果你想提取 IEvent 实例的泛型参数的类型，你可以这样做 -

public EventDescriptor(Guid id, IEvent eventData)
 {
   AggregateId = id;
   EventData = eventData;
   if (!eventData.GetType().IsGenericType)
   {
       EventType = eventData.GetType().FullName;
   }
   else
   {
       // notice - this assumes we can take the FIRST generic argument, we don't check for others here
       EventType = eventData.GetType().GetGenericArguments().First().FullName;
   }
}