XmlSerializer - 使用 URI 属性序列化对象时出错

发布于 2024-09-29 15:49:53 字数 359 浏览 5 评论 0原文

我在序列化具有 Uri 属性的类时遇到问题。

System.InvalidOperationException was unhandled
  Message=There was an error reflecting type 'Foo.Story'.
  // ...
  InnerException: System.InvalidOperationException
       Message=There was an error reflecting property 'MyURI'.

我希望这个属性被序列化。有什么方法可以解决这个问题？我应该声明某种转换器并使用 URI 的字符串表示形式吗？

原文

I'm having trouble serializing a class with a Uri property.

System.InvalidOperationException was unhandled
  Message=There was an error reflecting type 'Foo.Story'.
  // ...
  InnerException: System.InvalidOperationException
       Message=There was an error reflecting property 'MyURI'.

I would like this property to be serialized. What is a way around this? Should I declare some sort of a converter, and use the string representation of the URI?

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Oo萌小芽oO 2024-10-06 15:49:53

Uri 类不能序列化为 XML，因为它没有默认构造函数，并且它的所有属性都是只读的。作为解决方法，您可以改为序列化字符串：

[XmlIgnore]
public Uri MyURI { get; set; }

[XmlElement("MyURI")]
public string MyURIAsString
{
    get { return MyURI != null ? MyURI.AbsoluteUri : null; }
    set { MyUri = value != null ? new Uri(value) : null; }
}

The Uri class is not serializable to XML, because all it doesn't have a default constructor and all its properties are read-only. As a workaround, you can serialize a string instead:

[XmlIgnore]
public Uri MyURI { get; set; }

[XmlElement("MyURI")]
public string MyURIAsString
{
    get { return MyURI != null ? MyURI.AbsoluteUri : null; }
    set { MyUri = value != null ? new Uri(value) : null; }
}

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憧憬巴黎街头的黎明 2024-10-06 15:49:53

它必须是 XmlSerializer 吗？
DataContractSerializer 可以工作：

    using (var stream = File.Create(@"c:\Uri.xml"))
        new DataContractSerializer(typeof(Uri)).WriteObject(stream, new Uri(@"http://www.contoso.com/"));

这是一个很好的文章总结了差异

Does it have to be XmlSerializer ?
DataContractSerializer would work:

    using (var stream = File.Create(@"c:\Uri.xml"))
        new DataContractSerializer(typeof(Uri)).WriteObject(stream, new Uri(@"http://www.contoso.com/"));

Here is a nice article that sums up the differences

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