在 C# 中使用 xsi:nil="true" 反序列化 XML 元素

我正在尝试反序列化 XML 文件XmlSerializer in C#.

随后的目标类是使用 xsd 实用程序自动生成的。

    [System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "4.0.30319.33440")]
    [System.SerializableAttribute()]
    [System.Diagnostics.DebuggerStepThroughAttribute()]
    [System.ComponentModel.DesignerCategoryAttribute("code")]
    [System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true)]
    [System.Xml.Serialization.XmlRootAttribute(Namespace = "", IsNullable = true)]
    public partial class location
    {

        private string cityField;

        private string countryField;

        private string stateField;

        private string textField;

        /// <remarks/>
        [System.Xml.Serialization.XmlAttributeAttribute()]
        public string city
        {
            get
            {
                return this.cityField;
            }
            set
            {
                this.cityField = value;
            }
        }

        /// <remarks/>
        [System.Xml.Serialization.XmlAttributeAttribute()]
        public string country
        {
            get
            {
                return this.countryField;
            }
            set
            {
                this.countryField = value;
            }
        }

        /// <remarks/>
        [System.Xml.Serialization.XmlAttributeAttribute()]
        public string state
        {
            get
            {
                return this.stateField;
            }
            set
            {
                this.stateField = value;
            }
        }

        /// <remarks/>
        [System.Xml.Serialization.XmlTextAttribute()]
        public string Text
        {
            get
            {
                return this.textField;
            }
            set
            {
                this.textField = value;
            }
        }
    }

一切正常，直到我到达文件的这一部分：

<locations>
    <location country="PARAGUAY" city="Ciudad del Este" state="Alto Parana" xsi:nil="true"/>
    <location country="BRAZIL" city="Passo Fundo" state="Rio Grande do Sul" xsi:nil="true"/>
</locations>

As MSDN 中指出 https://msdn.microsoft.com/en-us/library/ybce7f69(v=vs.100).aspx#Anchor_2， xsi:nil="true" 的元素将被反序列化为空对象，完全丢失所有属性。在 C# 中，这会转换为空对象。

有没有办法改变这种行为，以便反序列化这三个属性？

预先感谢您的任何建议！

EDIT 1:

这是关联的命名空间：

<records xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="structure.xsd">
    (location is within here somewhere)
</records>

如果您只是想丢弃xsi:nil属性、集合XmlElementAttribute.IsNullable = false https://msdn.microsoft.com/en-us/library/system.xml.serialization.xmlelementattribute.isnullable.aspx in the [XmlElement]引用的包含类中的属性上的属性location。 例如。如果你有

[System.Xml.Serialization.XmlRootAttribute("locations", Namespace = "")]
public class LocationList
{
    [XmlElement("location", IsNullable = true)]
    public List<location> Locations { get; set; }
}

手动修改为：

[System.Xml.Serialization.XmlRootAttribute("locations", Namespace = "")]
public class LocationList
{
    [XmlElement("location", IsNullable = false)]
    public List<location> Locations { get; set; }
}

如果你想bind的值xsi:nil同时绑定到其他属性值，除了设置IsNullable = false，您可以按照中所示的方式添加手动属性我可以在由 XSD C# 生成的类创建的 XML 中的同一标记处包含 null 属性和其他属性吗？ https://stackoverflow.com/questions/32903839/can-i-have-null-attribute-and-other-attribute-at-the-same-tag-in-xml-created-by:

public partial class location
{
    bool nil;

    [XmlAttribute("nil", Namespace = "http://www.w3.org/2001/XMLSchema-instance")]
    public bool Nil
    {
        get
        {
            return nil;
        }
        set
        {
            nil = value;
        }
    }

    public bool ShouldSerializeNil() { return nil == true; }
}

Sample fiddle https://dotnetfiddle.net/LQOZDQ.

您还可以对 XML 进行预处理和后处理以重命名xsi:nil属性，如建议的那样这个答案 https://stackoverflow.com/questions/32903839/can-i-have-null-attribute-and-other-attribute-at-the-same-tag-in-xml-created-by/32969557#32969557.