是否有一个属性可以跳过C#的xml序列化中的空数组? [英] Is there an attribute to skip empty arrays in the xml-serialization of c#?
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问题描述
在C#的xml序列化中是否有一个属性可以跳过空数组?这将提高xml输出的可读性.
Is there an attribute to skip empty arrays in the xml-serialization of c#? This would increase human-readability of the xml-output.
推荐答案
好吧,您也许可以添加ShouldSerializeFoo()
方法:
Well, you could perhaps add a ShouldSerializeFoo()
method:
using System;
using System.ComponentModel;
using System.Xml.Serialization;
[Serializable]
public class MyEntity
{
public string Key { get; set; }
public string[] Items { get; set; }
[EditorBrowsable(EditorBrowsableState.Never), Browsable(false)]
public bool ShouldSerializeItems()
{
return Items != null && Items.Length > 0;
}
}
static class Program
{
static void Main()
{
MyEntity obj = new MyEntity { Key = "abc", Items = new string[0] };
XmlSerializer ser = new XmlSerializer(typeof(MyEntity));
ser.Serialize(Console.Out, obj);
}
}
识别出ShouldSerialize{name}
模式,并调用该方法以查看是否在序列化中包括该属性.还有一个替代的{name}Specified
模式,允许您在反序列化(通过设置器)时也检测事物:
The ShouldSerialize{name}
patten is recognised, and the method is called to see whether to include the property in the serialization. There is also an alternative {name}Specified
pattern that allows you to also detect things when deserializing (via the setter):
[EditorBrowsable(EditorBrowsableState.Never), Browsable(false)]
[XmlIgnore]
public bool ItemsSpecified
{
get { return Items != null && Items.Length > 0; }
set { } // could set the default array here if we want
}
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