是否有可能实现与.NET泛型类的COM接口？

问题描述

我有以下界面，我试图使COM可见。当我尝试生成类型库时，它不喜欢的事实，我的实现类派生自一个泛型类。

I have the following interface which I'm trying to make COM-visible. When I try to generate the type-library it doesn't like the fact that my implementation class derives from a generic-class.

是否可以使用通用类作为COM实现类？
（我知道我可以写一个非通用的包装并导出到COM，但这增加了另一个层，我宁愿没有。）

Is it possible to use a generic class as a COM implementation class?(I know I could write a non-generic wrapper and export that to COM, but this adds another layer that I'd rather do without.)

[ComVisible(true)]
public interface IMyClass
{
   ...
}

[ComVisible(true), ComDefaultInterface(typeof(IMyClass))]
[ClassInterface(ClassInterfaceType.None)]
public class MyClass : BaseClass<IMyClass>, IMyClass
{
   ...
}

错误讯息：

Warning: Type library exporter encountered a type that derives
from a generic class and is not marked as
[ClassInterface(ClassInterfaceType.None)]. Class interfaces cannot
be exposed for such types. Consider marking the type with
[ClassInterface(ClassInterfaceType.None)]
and exposing an explicit interface as the default interface to
COM using the ComDefaultInterface attribute.

推荐答案

无法导出派生自泛型类型的泛型类型和类型。在 MyClass 类型上设置 ComVisible（false）。您需要创建非泛型类实现或仅使用界面。

Generic types and types that derive from a generic type cannot be exported. Set ComVisible(false) on your MyClass type. You'll need to either create a non-generic class implementation or use the interface only.

这篇关于是否有可能实现与.NET泛型类的COM接口？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！