C# 序列化中基类字段的自定义XML元素名称
在执行序列化时,如何更改从基类继承的字段的XML元素名 例如,我有下一个基类:C# 序列化中基类字段的自定义XML元素名称,c#,xml,serialization,inheritance,xml-serialization,C#,Xml,Serialization,Inheritance,Xml Serialization,在执行序列化时,如何更改从基类继承的字段的XML元素名 例如,我有下一个基类: public class One { public int OneField; } 序列化代码: static void Main() { One test = new One { OneField = 1 }; var serializer = new XmlSerializer(typeof (One)); TextWriter writer = new StreamWriter
public class One
{
public int OneField;
}
序列化代码:
static void Main()
{
One test = new One { OneField = 1 };
var serializer = new XmlSerializer(typeof (One));
TextWriter writer = new StreamWriter("Output.xml");
serializer.Serialize(writer, test);
writer.Close();
}
static void Main()
{
Two test = new Two { OneField = 1, TwoField = 2 };
var serializer = new XmlSerializer(typeof (Two));
TextWriter writer = new StreamWriter("Output.xml");
serializer.Serialize(writer, test);
writer.Close();
}
我得到了我需要的:
<?xml version="1.0" encoding="utf-8"?>
<One xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<OneField>1</OneField>
</One>
序列化代码:
static void Main()
{
One test = new One { OneField = 1 };
var serializer = new XmlSerializer(typeof (One));
TextWriter writer = new StreamWriter("Output.xml");
serializer.Serialize(writer, test);
writer.Close();
}
static void Main()
{
Two test = new Two { OneField = 1, TwoField = 2 };
var serializer = new XmlSerializer(typeof (Two));
TextWriter writer = new StreamWriter("Output.xml");
serializer.Serialize(writer, test);
writer.Close();
}
因此,我得到下一个输出:
<?xml version="1.0" encoding="utf-8"?>
<Two xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<OneField>1</OneField>
<SecondField>2</SecondField>
</Two>
1.
2.
问题是我想将此输出中的OneField
更改为FirstField
,而不涉及基类代码(因为我也会使用它,而且名称必须是原始的)。我怎样才能做到这一点
谢谢。试试这个:
public class Two : One
{
private static XmlAttributeOverrides xmlOverrides;
public static XmlAttributeOverrides XmlOverrides
{
get
{
if (xmlOverrides == null)
{
xmlOverrides = new XmlAttributeOverrides();
var attr = new XmlAttributes();
attr.XmlElements.Add(new XmlElementAttribute("FirstField"));
xmlOverrides.Add(typeof(One), "OneField", attr);
}
return xmlOverrides;
}
}
[XmlElement("SecondField")]
public string TwoField;
}
而且序列化程序初始化要容易得多:
var xmls = new System.Xml.Serialization.XmlSerializer(typeof(Two), Two.XmlOverrides);
试试这个:
public class Two : One
{
private static XmlAttributeOverrides xmlOverrides;
public static XmlAttributeOverrides XmlOverrides
{
get
{
if (xmlOverrides == null)
{
xmlOverrides = new XmlAttributeOverrides();
var attr = new XmlAttributes();
attr.XmlElements.Add(new XmlElementAttribute("FirstField"));
xmlOverrides.Add(typeof(One), "OneField", attr);
}
return xmlOverrides;
}
}
[XmlElement("SecondField")]
public string TwoField;
}
而且序列化程序初始化要容易得多:
var xmls = new System.Xml.Serialization.XmlSerializer(typeof(Two), Two.XmlOverrides);
这里有一个解决方法:重写子类中的字段,并用您需要的任何名称标记被重写的字段。比如说,
class One
{
public int OneField { get; set; }
}
class Two : One
{
[XmlElement("FirstField")]
public new int OneField
{
get { return base.OneField; }
set { base.OneField = value; }
}
}
这里有一个解决方法:重写子类中的字段,并用您需要的任何名称标记被重写的字段。比如说,
class One
{
public int OneField { get; set; }
}
class Two : One
{
[XmlElement("FirstField")]
public new int OneField
{
get { return base.OneField; }
set { base.OneField = value; }
}
}
完美的正是我需要的。但有没有办法将这种重写嵌入到类声明中,以便在序列化对象时随时自动工作?不幸的是,据我所知,没有。您可以尝试将
XmlAttributeOverrides
对象公开为目标类上的静态字段,以使其更简单。完美!正是我需要的。但有没有办法将这种重写嵌入到类声明中,以便在序列化对象时随时自动工作?不幸的是,据我所知,没有。您可以尝试将XmlAttributeOverrides
对象公开为目标类上的静态字段,以使其更简单。当我尝试此操作时,序列化程序引发异常:{“反射类型“”时出错”}@Jay:Darn,在发布之前忘记检查代码。记得不久前这么做过,但一定是出了什么问题。您上面发布的解决方案很好。当我尝试此方法时,序列化程序引发了一个异常:{“存在反映类型“”的错误”}@Jay:Darn,在发布之前忘记检查代码。记得不久前这么做过,但一定是出了什么问题。你在上面发布的解决方案很巧妙