Question

我想保存一个对象，该对象包含的值基本上可以是任何类型。我正在使用XmlSerializer来做到这一点，并且它工作正常，但有一个例外：如果值是枚举，则序列化器将值存储为整数。如果我将其重新加载并使用该值从字典中读取，则会得到KeyNotFoundException。

是否有任何优雅的方法将枚举另存为枚举或避免KeyNotFoundException并仍使用XmlSerializer？（在此处枚举不是一个好的选择，容器和字典必须支持所有类型）

以下是演示该问题的简化代码：

public enum SomeEnum
{
    SomeValue,
    AnotherValue
}

// Adding [XmlInclude(typeof(SomeEnum))] is no proper solution as Key can be any type
public class GenericContainer
{
    public object Key { get; set; }
}

private Dictionary<object, object> SomeDictionary = new Dictionary<object, object>();

public void DoSomething()
{
    SomeDictionary[SomeEnum.AnotherValue] = 123;

    var value = SomeDictionary[SomeEnum.AnotherValue];

    Save(new GenericContainer { Key = SomeEnum.AnotherValue}, "someFile.xml");
    var genericContainer = (GenericContainer)Load("someFile.xml", typeof(GenericContainer));

    // Throws KeyNotFoundException
    value = SomeDictionary[genericContainer.Key];
}

public void Save(object data, string filePath)
{
    var serializer = new XmlSerializer(data.GetType());
    using (var stream = File.Create(filePath))
    {
        serializer.Serialize(stream, data);
    }
}
public object Load(string filePath, Type type)
{
    var serializer = new XmlSerializer(type);
    using (var stream = File.OpenRead(filePath))
    {
        return serializer.Deserialize(stream);
    }
}

Answer 1

您可以将属性放入枚举

public enum Simple
{
      [XmlEnum(Name="First")]
      one,
      [XmlEnum(Name="Second")]
      two,
      [XmlEnum(Name="Third")]
      three,
}

原始： How do you use XMLSerialize for Enum typed properties in c#?

当枚举值存储为对象时，如何使用XmlSerializer（.NET）正确存储枚举值

1 个答案: