C# 在XML反序列化中使用继承

我正在尝试用继承反序列化

例如，我有一门课程是为

简而言之，XSD是这样的：

<?xml version="1.0" encoding="utf-8"?>
<xs:schema attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://a9.com/-/spec/opensearch/1.1/" xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xs:element name="OpenSearchDescription">
    <xs:complexType>
      <xs:sequence>
        <xs:element name="ShortName" type="xs:string" />
      </xs:sequence>
    </xs:complexType>
  </xs:element>
</xs:schema>

[System.SerializableAttribute]
[XmlRoot(Namespace = "http://www.mozilla.org/2006/browser/search/", IsNullable = false, ElementName = "SearchPlugin")]
public class SearchPlugin
{
    public OpenSearch OpenSearch { get; set; }
}

当我尝试反序列化一个xml时，这很好用

对于我的mozilla实现，我只需要以下内容：

<?xml version="1.0" encoding="utf-8"?>
<xs:schema attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://a9.com/-/spec/opensearch/1.1/" xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xs:element name="OpenSearchDescription">
    <xs:complexType>
      <xs:sequence>
        <xs:element name="ShortName" type="xs:string" />
      </xs:sequence>
    </xs:complexType>
  </xs:element>
</xs:schema>

[System.SerializableAttribute]
[XmlRoot(Namespace = "http://www.mozilla.org/2006/browser/search/", IsNullable = false, ElementName = "SearchPlugin")]
public class SearchPlugin
{
    public OpenSearch OpenSearch { get; set; }
}

但是，每当我尝试反序列化SearchPlugin对象时，OpenSearch对象就是空的

---

我该怎么做呢？我试图通过使用xsd.exe生成代码来为自己创建一个示例，但是当我尝试为SearchPlugin.xsd生成代码时，也不断出现错误，因此这没有帮助…

我将从您尝试反序列化的XML开始，从该XML中获取xsd文件，如果需要，调整xsd以确保它们有效，然后使用xsd.exe生成类。通过查看生成的类，您将看到缺少了什么

真正熟悉xsd.exe的人会立即指出SearchPlugin类的OpenSearch属性没有XmlElementAttribute，类似于

[System.Xml.Serialization.XmlElementAttribute(Namespace="http://a9.com/-/spec/opensearch/1.1/")]

我相信这就是你得到空值的原因。下面是我将如何排除故障

从XML开始；基于您的模式和类，我假设您期望如下所示：

<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<!-- Sample XML generated by QTAssistant (http://www.paschidev.com) -->
<SearchPlugin xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:os="http://a9.com/-/spec/opensearch/1.1/" xmlns="http://www.mozilla.org/2006/browser/search/">
    <os:OpenSearchDescription>
        <os:ShortName>ShortName1</os:ShortName>
    </os:OpenSearchDescription>
</SearchPlugin>

生成的类：

using System.Xml.Serialization;

// 
// This source code was auto-generated by xsd, Version=4.0.30319.1.
// 


/// <remarks/>
[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "4.0.30319.1")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType=true,     Namespace="http://www.mozilla.org/2006/browser/search/")]
[System.Xml.Serialization.XmlRootAttribute(Namespace="http://www.mozilla.org/2006/browser/search/", IsNullable=false)]
public partial class SearchPlugin {

    private OpenSearchDescription openSearchDescriptionField;

    /// <remarks/>
    [System.Xml.Serialization.XmlElementAttribute(Namespace="http://a9.com/-/spec/opensearch/1.1/")]
    public OpenSearchDescription OpenSearchDescription {
        get {
            return this.openSearchDescriptionField;
        }
        set {
            this.openSearchDescriptionField = value;
        }
    }
}

/// <remarks/>
[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "4.0.30319.1")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType=true, Namespace="http://a9.com/-/spec/opensearch/1.1/")]
[System.Xml.Serialization.XmlRootAttribute(Namespace="http://a9.com/-/spec/opensearch/1.1/", IsNullable=false)]
public partial class OpenSearchDescription {

    private string shortNameField;

    /// <remarks/>
    public string ShortName {
        get {
            return this.shortNameField;
        }
        set {
            this.shortNameField = value;
        }
    }
}

使用System.Xml.Serialization；
// 
//此源代码由xsd自动生成，版本=4.0.30319.1。
// 
/// 
[System.CodeDom.Compiler.GeneratedCodeAttribute（“xsd”，“4.0.30319.1”）]
[System.SerializableAttribute（）]
[System.Diagnostics.DebuggerStepThroughAttribute（）]
[System.ComponentModel.DesignerCategoryAttribute（“代码”）]
[System.Xml.Serialization.XmlTypeAttribute（AnonymousType=true，命名空间=”http://www.mozilla.org/2006/browser/search/")]
[System.Xml.Serialization.XmlRootAttribute（命名空间=”http://www.mozilla.org/2006/browser/search/“，IsNullable=false）]
公共部分类搜索插件{
私有OpenSearchDescription OpenSearchDescription字段；
/// 
[System.Xml.Serialization.XmlElementAttribute（命名空间=”http://a9.com/-/spec/opensearch/1.1/")]
公共OpenSearchDescription OpenSearchDescription{
得到{
返回此.openSearchDescriptionField；
}
设置{
this.openSearchDescriptionField=值；
}
}
}
/// 
[System.CodeDom.Compiler.GeneratedCodeAttribute（“xsd”，“4.0.30319.1”）]
[System.SerializableAttribute（）]
[System.Diagnostics.DebuggerStepThroughAttribute（）]
[System.ComponentModel.DesignerCategoryAttribute（“代码”）]
[System.Xml.Serialization.XmlTypeAttribute（AnonymousType=true，命名空间=”http://a9.com/-/spec/opensearch/1.1/")]
[System.Xml.Serialization.XmlRootAttribute（命名空间=”http://a9.com/-/spec/opensearch/1.1/“，IsNullable=false）]
公共部分类OpenSearchDescription{
私有字符串短名称字段；
/// 
公共字符串短名称{
得到{
返回此.shortNameField；
}
设置{
this.shortNameField=值；
}
}
}

我将从您尝试反序列化的XML开始，从该XML中获取XSD文件，如果需要，调整XSD以确保其有效，然后使用XSD.exe生成类。通过查看生成的类，您将看到缺少了什么

真正熟悉xsd.exe的人会立即指出SearchPlugin类的OpenSearch属性没有XmlElementAttribute，类似于

[System.Xml.Serialization.XmlElementAttribute(Namespace="http://a9.com/-/spec/opensearch/1.1/")]

我相信这就是你得到空值的原因。下面是我将如何排除故障

从XML开始；基于您的模式和类，我假设您期望如下所示：

<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<!-- Sample XML generated by QTAssistant (http://www.paschidev.com) -->
<SearchPlugin xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:os="http://a9.com/-/spec/opensearch/1.1/" xmlns="http://www.mozilla.org/2006/browser/search/">
    <os:OpenSearchDescription>
        <os:ShortName>ShortName1</os:ShortName>
    </os:OpenSearchDescription>
</SearchPlugin>

生成的类：

using System.Xml.Serialization;

// 
// This source code was auto-generated by xsd, Version=4.0.30319.1.
// 


/// <remarks/>
[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "4.0.30319.1")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType=true,     Namespace="http://www.mozilla.org/2006/browser/search/")]
[System.Xml.Serialization.XmlRootAttribute(Namespace="http://www.mozilla.org/2006/browser/search/", IsNullable=false)]
public partial class SearchPlugin {

    private OpenSearchDescription openSearchDescriptionField;

    /// <remarks/>
    [System.Xml.Serialization.XmlElementAttribute(Namespace="http://a9.com/-/spec/opensearch/1.1/")]
    public OpenSearchDescription OpenSearchDescription {
        get {
            return this.openSearchDescriptionField;
        }
        set {
            this.openSearchDescriptionField = value;
        }
    }
}

/// <remarks/>
[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "4.0.30319.1")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType=true, Namespace="http://a9.com/-/spec/opensearch/1.1/")]
[System.Xml.Serialization.XmlRootAttribute(Namespace="http://a9.com/-/spec/opensearch/1.1/", IsNullable=false)]
public partial class OpenSearchDescription {

    private string shortNameField;

    /// <remarks/>
    public string ShortName {
        get {
            return this.shortNameField;
        }
        set {
            this.shortNameField = value;
        }
    }
}

使用System.Xml.Serialization；
// 
//此源代码由xsd自动生成，版本=4.0.30319.1。
// 
/// 
[System.CodeDom.Compiler.GeneratedCodeAttribute（“xsd”，“4.0.30319.1”）]
[System.SerializableAttribute（）]
[System.Diagnostics.DebuggerStepThroughAttribute（）]
[System.ComponentModel.DesignerCategoryAttribute（“代码”）]
[System.Xml.Serialization.XmlTypeAttribute（AnonymousType=true，命名空间=”http://www.mozilla.org/2006/browser/search/")]
[System.Xml.Serialization.XmlRootAttribute（命名空间=”http://www.mozilla.org/2006/browser/search/“，IsNullable=false）]
公共部分类搜索插件{
私有OpenSearchDescription OpenSearchDescription字段；
/// 
[System.Xml.Serialization.XmlElementAttribute（命名空间=”http://a9.com/-/spec/opensearch/1.1/")]
公共OpenSearchDescription OpenSearchDescription{
得到{
返回此.openSearchDescriptionField；
}
设置{
this.openSearchDescriptionField=值；
}
}
}
/// 
[System.CodeDom.Compiler.GeneratedCodeAttribute（“xsd”，“4.0.30319.1”）]
[System.SerializableAttribute（）]
[System.Diagnostics.DebuggerStepThroughAttribute（）]
[System.ComponentModel.DesignerCategoryAttribute（“代码”）]
[System.Xml.Serialization.XmlTypeAttribute（AnonymousType=true，命名空间=”http://a9.com/-/spec/opensearch/1.1/")]
[System.Xml.Serialization.XmlRootAttribute（命名空间=”http://a9.com/-/spec/opensearch/1.1/“，IsNullable=false）]
公共部分类OpenSearchDescription{
私有字符串短名称字段；
/// 
公共字符串短名称{
得到{
返回此.shortNameField；
}
设置{
this.shortNameField=值；
}
}
}