C# 如何在xml序列化期间包含空属性
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How to include null properties during xml serialization
提问by Davita
Currently, the code below omits null properties during serialization. I want null valued properties in the output xml as empty elements. I searched the web but didn't find anything useful. Any help would be appreciated.
目前，下面的代码在序列化过程中省略了 null 属性。我希望输出 xml 中的空值属性作为空元素。我在网上搜索，但没有找到任何有用的东西。任何帮助，将不胜感激。
var serializer = new XmlSerializer(application.GetType());
var ms = new MemoryStream();
var writer = new StreamWriter(ms);
serializer.Serialize(writer, application);
return ms;
Sorry, I forgot to mention that I want to avoid attribute decoration.
对不起，我忘了说我想避免属性修饰。
采纳答案by Emanuele Greco
Can you control the items that have to be serialized?
Using
你能控制必须序列化的项目吗？
使用
[XmlElement(IsNullable = true)]
public string Prop { get; set; }
you can represent it as <Prop xsi:nil="true" />
你可以将它表示为 <Prop xsi:nil="true" />
回答by user2722002
Set the XmlElementAttribute.IsNullableproperty:
设置XmlElementAttribute.IsNullable属性：
回答by Anand
You can use also use the following code. The pattern is ShouldSerialize{PropertyName}
您也可以使用以下代码。图案是ShouldSerialize{PropertyName}
public class PersonWithNullProperties
{
public string Name { get; set; }
public int? Age { get; set; }
public bool ShouldSerializeAge()
{
return true;
}
}
PersonWithNullProperties nullPerson = new PersonWithNullProperties() { Name = "ABCD" };
XmlSerializer xs = new XmlSerializer(typeof(nullPerson));
StringWriter sw = new StringWriter();
xs.Serialize(sw, nullPerson);
XML
XML
<?xml version="1.0" encoding="utf-16"?>
<Person xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://
www.w3.org/2001/XMLSchema">
<Name>ABCD</Name>
<Age xsi:nil="true" />
</Person>
