从MFC中的类CList派生 [英] Derive from the class CList in MFC

问题描述

我们可以从CList派生吗?如果是，那怎么办?
我尝试了以下操作，但出现编译时错误.

Can we derive from the CList? If yes then how?
I tried following thing but I am getting the compile time error.

class IIS_CList : public CList<cobject,>
{
...
}

我无法从CList派生它.我们应该怎么做?

I am not able to derive it from CList. How should we do it?

[更新]
谢谢

我听了你说的话.

如果我想以通用方式做到这一点，那我们应该怎么做?
表示如果我不知道类型是否为int，CString或其他类型
[/Update]

[Update]
thank you,

i followed what you said.

if i want to do this in generic way then what should we do for that?
means if i dont know whether the type is int, CString or may other
[/Update]

推荐答案

是的，您(当然)可以从CList派生，但是类作为以下模板签名"(请参见 CList文档 [ ^ ]):

Yes, you may (of course) derive from CList, however the CList class as the following ''template signature'' (see CList documentation[^]):

template< class TYPE, class ARG_TYPE = const TYPE& > 
class CList : public CObject

因此，您应该相应地从中导出，例如

Hence you should derive from accordingly, for instance

class MyList : public CList <int, int >
{
  // ...
};

是允许的.

is allowed.

[更新]
如果要在类中使用CList的通用性，请使用:

[Update]
If you want the same generality of the CList, in your class, then use:

template  <class TYPE, class ARG_TYPE = const TYPE&> 
  class MyList : public CList < TYPE, ARG_TYPE  >
  {
    //..
  };

[/Update]

[/Update]

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