是否有一个属性可以跳过c＃的xml序列化中的空数组？(Is there an attribute to skip empty arrays in the xml

是否有一个属性可以跳过c＃的xml序列化中的空数组？(Is there an attribute to skip empty arrays in the xml-serialization of c#?)

是否有一个属性可以跳过c＃的xml序列化中的空数组？ 这会增加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.

最满意答案

那么，你可以添加一个ShouldSerializeFoo()方法：

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); } }

ShouldSerialize{name} patten被识别，并调用该方法以查看是否在序列化中包含该属性。 还有一个替代的{name}Specified模式，它允许您在反序列化时（通过setter）检测事物：

[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 }

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); } }

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 }