使用XmlSerializer在平面xml数组中重命名数组项

时间:2023-02-12 10:39:14

I have an XML file with the following format:

我有一个XML文件,格式如下:

<?xml version="1.0" encoding="UTF-8"?>
<Items>
    <Item Property1="A" Property2="B" />
    <Item Property1="C" Property2="D" />
</Items>

I need to read the <Item> elements as objects of class MyClass using an XmlSerializer.

我需要使用XmlSerializer将 元素作为MyClass类的对象读取。

public class MyCLass
{
    [XmlAttribute]
    public string Property1 { get; set; }

    [XmlAttribute]
    public string Property2 { get; set; }
}

Currently, I have the following code to read the file:

目前,我有以下代码来读取文件:

XmlSerializer serializer =
    new XmlSerializer(typeof(MyClass[]), new XmlRootAttribute(@"Items"));

MyClass[] list = (MyClass[])serializer.Deserialize(...);

Since the element name <Item> is different from the class name MyCLass, the elements in the array are not deserialized at all. The above code works if I rename MyClass to Item, but unfortunately I am not allowed to change the XML file or the class names.

由于元素名 与类名MyCLass不同,所以数组中的元素根本没有反序列化。如果我将MyClass重命名为Item,上面的代码就可以工作,但不幸的是,我不允许更改XML文件或类名。

How do I go about mapping the two so that the file can be read correctly?

如何映射这两个文件,以便正确读取文件?

Thanks in advance!

提前谢谢!

2 个解决方案

#1


4  

Use a wrapper class that contains the array, this will allow you to apply the XmlElement attribute:

使用包含数组的包装器类,这将允许您应用XmlElement属性:

public class MyClassList
{
    [XmlElement("Item")]
    public MyClass[] Items { get; set; }
}

var items = new[]
{
    new MyClass { Property1 = "A", Property2 = "B" },
    new MyClass { Property1 = "C", Property2 = "D" },
};
var list = new MyClassList { Items = items };

using (var writer = new StringWriter())
{
    var xs = new XmlSerializer(typeof(MyClassList), new XmlRootAttribute("Items"));
    xs.Serialize(writer, list);
    writer.ToString().Dump();
}

#2


2  

Personally I would serialize and deserialize manually - I've found that it's easier to get whatever flexibility you want that way rather than spending a long time messing around with the built-in serialization and living with the various restrictions it imposes. LINQ to XML makes it pretty simple. For example, in this case:

就我个人而言,我将手工序列化和反序列化——我发现,这样更容易获得所需的灵活性,而不是花很长时间处理内置的序列化和反序列化所带来的各种限制。LINQ to XML使它非常简单。例如,在这种情况下:

XDocument doc = XDocument.Load("test.xml");
// You could use an array if you really wanted, of course.
List<MyClass> list = doc.Root
                        .Elements("Item")
                        .Select(x => new MyClass {
                            Property1 = (string) x.Attribute("Property1"),
                            Property2 = (string) x.Attribute("Property2"),
                         })
                        .ToList();

Admittedly this will get hairy if you need to serialize objects with complicated relationships (two objects referring to the same child or whatever) but I've had a great deal of success with it in the past.

不可否认,如果您需要序列化具有复杂关系的对象(两个对象引用相同的子对象或其他对象),那么这将非常麻烦,但是我过去在这方面已经取得了很大的成功。

#1


4  

Use a wrapper class that contains the array, this will allow you to apply the XmlElement attribute:

使用包含数组的包装器类,这将允许您应用XmlElement属性:

public class MyClassList
{
    [XmlElement("Item")]
    public MyClass[] Items { get; set; }
}

var items = new[]
{
    new MyClass { Property1 = "A", Property2 = "B" },
    new MyClass { Property1 = "C", Property2 = "D" },
};
var list = new MyClassList { Items = items };

using (var writer = new StringWriter())
{
    var xs = new XmlSerializer(typeof(MyClassList), new XmlRootAttribute("Items"));
    xs.Serialize(writer, list);
    writer.ToString().Dump();
}

#2


2  

Personally I would serialize and deserialize manually - I've found that it's easier to get whatever flexibility you want that way rather than spending a long time messing around with the built-in serialization and living with the various restrictions it imposes. LINQ to XML makes it pretty simple. For example, in this case:

就我个人而言,我将手工序列化和反序列化——我发现,这样更容易获得所需的灵活性,而不是花很长时间处理内置的序列化和反序列化所带来的各种限制。LINQ to XML使它非常简单。例如,在这种情况下:

XDocument doc = XDocument.Load("test.xml");
// You could use an array if you really wanted, of course.
List<MyClass> list = doc.Root
                        .Elements("Item")
                        .Select(x => new MyClass {
                            Property1 = (string) x.Attribute("Property1"),
                            Property2 = (string) x.Attribute("Property2"),
                         })
                        .ToList();

Admittedly this will get hairy if you need to serialize objects with complicated relationships (two objects referring to the same child or whatever) but I've had a great deal of success with it in the past.

不可否认,如果您需要序列化具有复杂关系的对象(两个对象引用相同的子对象或其他对象),那么这将非常麻烦,但是我过去在这方面已经取得了很大的成功。