要XML序列化，它自ICollection继承的类型必须添加的实现 [英] To be XML serializable, types which inherit from ICollection must have an implementation of Add

问题描述

我有里昂证券（1.x的框架）从现有的项目，我想在一个新的.NET 4.0的项目使用对象。在生产中所使用的对象，我实在无法将它们转换为2.x或EF无需对象的2套。

在我的C＃web服务（当我尝试运行它）我收到以下错误：

 要XML序列化，它从ICollection的继承类型必须
有各级添加（objectname.object）的实现
他们的继承层次结构。 objectname.objectList不
实施加（objectname.object）。
 

就像我说的这些对象都写在vb.net CSLA对象。我不知道去哪里找这一点。它是.NET 4.0中试图与CSLA 1.x的一个问题或者是一个Web服务的问题（因为这些物体从未使用Web服务最初）？

有没有人对我应该在哪里看弄清楚这个问题的想法？我应该建议转换为CSLA 2.X？

任何建议都AP preciated！

解决方案

这是一个XmlSerializer限制;如果事情看起来像数据列表，它会想通过Add方法将项目添加到它。

如果你有机会获得这些对象，考虑增加这样的方法。我不记得是否希望加入（对象）与添加（SOMETYPE），所以尝试两个。

如果您的不的有超过那些对象的控制......这将是很难。这将是更快地写为对象的新DTO层，而不是试图以某种方式修补它。

I have CSLA (1.x framework) objects from an existing project that I'm trying to use in a new .Net 4.0 project. The objects are being used in production and I really can't convert them to 2.x or EF without having 2 sets of objects.

In my c# webservice (when I try to run it) I am getting the following error:

To be XML serializable, types which inherit from ICollection must
have an implementation of Add(objectname.object) at all levels
of their inheritance hierarchy. objectname.objectList does not
implement Add(objectname.object).

Like I said these objects are CSLA objects written in vb.net. I don't know where to look on this one. Is it an issue of .Net 4.0 trying to talk to CSLA 1.x or is it a web service issue (as these objects never used web services originally)?

Does anyone have an idea about where I should look to figure out this issue? Should I suggest converting to CSLA 2.x?

Any suggestions are appreciated!

解决方案

This is an XmlSerializer limitation; if something looks like a list of data, it will want to Add items to it via the Add method.

If you have access to those objects, consider adding such a method. I can't recall whether it wants Add(object) vs Add(SomeType) so try both.

If you don't have control over those objects... it will be hard. It would be quicker to write a new DTO layer for the objects than to try to patch it somehow.

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