问题反序列化泛型列表与C＃XmlSerializer的

问题描述：

我碰到一个有点砖墙与微软的.NET的XmlSerializer的。我试图反序列化一些XML成一个对象，这是好的，如果我使用一个单一的对象，但是当一个人把一个对象转为列表，然后尝试序列化/反序列化问题就来了。首先起来，这里是一个示例C＃Windows控制台程序来说明这个问题：

I've come up against a bit of a brick wall with Microsoft's .net XmlSerializer. I'm trying to deserialize some XML into an object, which is fine if I'm using a single object, but the problem comes when one puts an object into a List and tries to serialize/deserialize that. First up, here's a sample C# windows console program to illustrate the problem:

的 http://pastebin.com/m22e6e275

如果类'富'是序列化为一个根元素，事情的行为罚款，并如预期 - 该JezNamespace XMLNS被施加到根富元件，并发生细反序列化。但是，如果我创建一个列表和序列化，XmlSerializer的：
- 创建ArrayOfFoo
的根元素 - 使富元素作为该元素
的孩子 - 设置每个孩子的XMLNS富到JezNamespace空间！

If the class 'Foo' is serialized as a root element, things behave fine, and as expected - the JezNamespace xmlns is applied to the root Foo element, and deserialization occurs fine. However if I create a List and serialize that, the XmlSerializer: - Creates a root element of ArrayOfFoo - Puts the Foo elements as children of that element - Sets the xmlns of EVERY child of Foo to the JezNamespace namespace!

我行与前两个，但第三人似乎疯了...也许一个错误的XmlSerializer？有一些办法可以对付这种行为？我不希望我的指定的命名空间中富每一个孩子，我只是想指明它美孚。如果我这样做，目前，XmlSerializer的不正确地反序列化类 - 它只是跳过与设置JezNamespace的xmlns任何美孚元素。我必须设置所有的子元素具有的xmlns

I'm OK with the first two, but the third one seems mad... maybe a bug in XmlSerializer? Is there some way I can deal with this behaviour? I don't want to be specifying my namespace for every child of Foo, I just want to specify it for Foo. If I do that, currently, XmlSerializer doesn't deserialize the class properly - it just skips over any Foo element with the JezNamespace xmlns set. I have to set ALL the child elements to have that xmlns.

我想获得的就是XmlSerializer的生成是这样的：

What I'd like to get to is XmlSerializer generating something like:

<ArrayOfFoo>
    <Foo xmlns="http://schemas.datacontract.org/2004/07/JezNamespace">
        <Field1>hello</Field1>
        <Field2>world</Field2>
    </Foo>
    <Foo xmlns="http://schemas.datacontract.org/2004/07/JezNamespace">
        <Field1>aaa</Field1>
        <Field2>bbb</Field2>
    </Foo>
</ArrayOfFoo>

...，然后让XmlSerializer的能够反序列化，适当到列表中。任何想法如何，我可以得到它这样做？

... and then have XmlSerializer be able to deserialize that properly into a List. Any ideas how I can get it doing this?

答

您的代码对富两个属性code>，到目前为止我所知道的，你放在那里，试图命名空间相关联：

Your code has two attributes on Foo that, so far as I can tell, you've put there to try to associate a namespace:

 [XmlRootAttribute(Namespace="http://schemas.datacontract.org/2004/07/JezNamespace",
                   IsNullable=false)]
 [XmlTypeAttribute(AnonymousType=true,
                   Namespace="http://schemas.datacontract.org/2004/07/JezNamespace")]

第一个会被忽略，因为在您的方案富不是根元素。第二个不很做什么你可能认为它 - 它的名称空间是一个的 XSD类型的，而不是元素本身的命名空间的命名空间

The first one is simply ignored, because in your scenario Foo is not a root element. The second one doesn't quite do what you probably think it does - the namespace in it is a namespace of an XSD type, not namespace of an element itself.

要指定名称和元素的命名空间，你反而需要使用 XmlArrayItemAttribute 在列表&LT;富&GT; 父类的属性（哦，你将需要一个父类）：

To specify name and namespace of the element, you do instead need to use XmlArrayItemAttribute on the List<Foo> property of a parent class (oh, and you will need that parent class):

public class FooParent
{
    [XmlArrayItem(ElementName="Foo",
                  Namespace="http://schemas.datacontract.org/2004/07/JezNamespace")]
    public List<Foo> Foos { get; private set; }
}

这将产生：

<FooParent>
  <Foos>
    <Foo xmlns="http://schemas.datacontract.org/2004/07/JezNamespace">
      <Field1>hello</Field1>
      <Field2>world</Field2>
    </Foo>
    ...

另外，如果你不想让 FOOS 中间元素可言，你可以在代码替换 XmlArrayItem 上面的XmlElement 。在这种情况下，输出XML将是这样的：

Alternatively, if you do not want that Foos intermediate element at all, you can replace XmlArrayItem in code above with XmlElement. In this case, the output XML will look like this:

<FooParent>
  <Foo xmlns="http://schemas.datacontract.org/2004/07/JezNamespace">
    <Field1>hello</Field1>
    <Field2>world</Field2>
  </Foo>

问题反序列化泛型列表与C＃XmlSerializer的

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