我有这段代码:
[XmlType( "Metadata" )]
[Serializable]
public class MetadataContainer : List<MetadataBase>
{
}
[XmlType( "Meta" )]
[XmlInclude( typeof( ReadonlyMetadata ) )]
[Serializable]
public abstract class MetadataBase
{
}
[XmlType( "Readonly" )]
[Serializable]
public class ReadonlyMetadata : MetadataBase
{
}
[TestFixture]
public class SerializationTests
{
[Test]
public void Can_deserialize_with_known_type()
{
const string text = @"<Metadata xmlns:xsd=""http://www.w3.org/2001/XMLSchema"" xmlns:xsi=""http://www.w3.org/2001/XMLSchema-instance"">
<Meta xsi:type=""Readonly"" />
</Metadata>";
var serializer = new XmlSerializer( typeof( MetadataContainer ) );
var metas = (MetadataContainer)serializer.Deserialize( XmlReader.Create( new StringReader( text ) ) );
Assert.That( metas.Count, Is.EqualTo( 1 ) );
Assert.That( metas.First(), Is.InstanceOf<ReadonlyMetadata>() );
}
[Test]
public void Can_deserialize_with_unknown_type()
{
const string text = @"<Metadata xmlns:xsd=""http://www.w3.org/2001/XMLSchema"" xmlns:xsi=""http://www.w3.org/2001/XMLSchema-instance"">
<Meta xsi:type=""Hello"" />
</Metadata>";
var serializer = new XmlSerializer( typeof( MetadataContainer ) );
var metas = (MetadataContainer)serializer.Deserialize( XmlReader.Create( new StringReader( text ) ) );
Assert.That( metas.Count, Is.EqualTo( 0 ) );
}
}
第一个测试可以正常运行,但是执行第二个测试时出现以下错误:
System.InvalidOperationException:XML文档中存在错误(2,9)。 ----> System.InvalidOperationException :指定的类型未被识别:name='Hello',namespace=''。
我希望它可以忽略未被识别的类型而不是抛出异常。是否有任何方式实现这一点?
Unknown
- events的情况,但尝试后似乎并没有帮助。神秘。 - AakashM