我可以失败，并在C＃XmlSerializer的反序列化，如果没有找到一个元素？ [英] Can I fail to deserialize with XmlSerializer in C# if an element is not found?

问题描述

我使用的XmlSerializer写在C＃中读取对象到XML。我目前使用的属性的XmlElement 和 XmlIgnore 来操作对象的序列化。

I am using XmlSerializer to write and read an object to xml in C#. I currently use the attributes XmlElement and XmlIgnore to manipulate the serialization of the object.

如果我的XML文件丢失，我需要一个XML元素，我的对象仍然反序列化（XML - >对象）就好了。我如何指示（最好是通过属性）某一个领域是必需的

If my xml file is missing an xml element that I require, my object still deserializes (xml -> object) just fine. How do I indicate (preferably via Attributes) that a certain field is "required"?

下面是我使用目前的抽样方法：

Here is a sample method of what I am using currently:

[XmlElement(ElementName="numberOfWidgets")]
public int NumberThatIsRequired {
    set ...;
    get ...;
}

我的理想的解决方案是添加类似的 XmlRequired 属性。

此外，有没有什么属性了很好的参考可用来操纵XmlSerializer的行为？

Also, is there a good reference for what Attributes are available to manipulate the behavior of XmlSerializer?

推荐答案

我已经得到了第二部分的答案：的属性，控制XML序列化。

I've got an answer for the second part: "Attributes that control XML serialization".

仍在调查第一部分...

Still investigating the first part...

编辑：我强烈怀疑你无法通过XML反序列化本身。我刚刚在一个示例架构，其中包括必要属性，运行XSD.EXE - 这也正是如果属性被标记为可选一样。如果有需要的属性的方式来设置的，我希望它在这种情况下实施。

I strongly suspect you can't do this through XML deserialization itself. I've just run xsd.exe on a sample schema which includes a required attribute - and it's exactly the same if the attribute is marked as being optional. If there were a way of requiring properties to be set, I'd expect it to be implemented in that case.

我怀疑你已经基本上得到了验证刚才您反序列化后的对象树。我们对此深感抱歉...

I suspect you've basically got to just validate your tree of objects after deserializing it. Sorry about that...

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