C＃反序列化XML，在某些带属性的元素上获取空值 [英] C# Deserialization of XML, getting null values on some of Elements with Attributes
问题描述
我有这个带有元素和属性的XML文件，问题是在反序列化xml之后，一些元素有空值。
I have this XML file with element and attributes, the problem is some of the elements has null values after deserializing the xml.
以及如何访问属性，例如学生的姓名，座位的数字或行/列？
And how to access the attributes like for example the name of the Student, number or row/column of Seat?
这是我的XML：
<？xml version =" 1.0"编码= QUOT; UTF-8英寸standalone =" yes"？>
<？xml-stylesheet type ='text / xsl'href ='Summary.xsl'？>
<摘要xmlns：xsd =" http：//www.w3.org/2001/XMLSchema" xmlns：xsi =" http：//www.w3.org/2001/XMLSchema-instance">
<课程> BS CompEng< /课程>
<学生>
&NBSP; <学生姓名=" John"> Doe< / Student>
&NBSP; <学生姓名="简"> Salt< / Student>
&NBSP; <学生姓名=" G.I."> Joe< / Student>
&NBSP; < Student name =" Jean Claude"> Van Damme< / Student>
< /学生>
< Room_Section>
&NBSP; <座位号=" 1"行= QUOT 1 QUOT; column =" 1" />
&NBSP; <座位号=" 2"行= QUOT; 2英寸柱= QUOT; 2英寸/>
&NBSP; <座位号=" 3"行= QUOT; 3英寸柱= QUOT; 3英寸/>
&NBSP; <座位号="4"行= QUOT; 4英寸column =" 4" />
&NBSP; <座位号="5"行= QUOT; 5英寸column =" 5" />
&NBSP; <座位号="6"行= QUOT; 6英寸column =" 6" />
< / Room_Section>
<测试>
&NBSP; <测试名称=" COE 424">
&NBSP; &NBSP; <时间>下午1点30分< /时间>
&NBSP; &NBSP; < Day> 23< / day>
&NBSP; &NBSP; < Pass> 13< / Pass>
&NBSP; &NBSP; <失败> 0< /失败>
&NBSP; &NBSP; < Duration> 01：00：00< / Duration>
&NBSP; &NBSP; < Teacher name =" Claire"> Something< / Teacher>
&NBSP; < / Test>
&NBSP; <测试名称=" CS 101">
&NBSP; &NBSP; <时间>下午4:30< /时间>
&NBSP; &NBSP; < Day> 15< / day>
&NBSP; &NBSP; <传递> 1< /传递>
&NBSP; &NBSP; <失败> 12< /失败>
&NBSP; &NBSP; < Duration> 01：30：00< / Duration>
&NBSP; &NBSP; <教师姓名=" Arnold"> BodyBuilder< /老师>
&NBSP; < / Test>
< / Tests>
< OverallResult>已通过< / OverallResult>
< /摘要>
<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<?xml-stylesheet type='text/xsl' href='Summary.xsl'?>
<Summary xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<Course>BS CompEng</Course>
<Students>
<Student name="John">Doe</Student>
<Student name="Jane">Salt</Student>
<Student name="G.I.">Joe</Student>
<Student name="Jean Claude">Van Damme</Student>
</Students>
<Room_Section>
<Seat number="1" row="1" column="1"/>
<Seat number="2" row="2" column="2" />
<Seat number="3" row="3" column="3" />
<Seat number="4" row="4" column="4"/>
<Seat number="5" row="5" column="5"/>
<Seat number="6" row="6" column="6"/>
</Room_Section>
<Tests>
<Test name="COE 424">
<Time>1:30pm</Time>
<Day>23</Day>
<Pass>13</Pass>
<Fail>0</Fail>
<Duration>01:00:00</Duration>
<Teacher name="Claire">Something</Teacher>
</Test>
<Test name="CS 101">
<Time>4:30pm</Time>
<Day>15</Day>
<Pass>1</Pass>
<Fail>12</Fail>
<Duration>01:30:00</Duration>
<Teacher name="Arnold">BodyBuilder</Teacher>
</Test>
</Tests>
<OverallResult>Passed</OverallResult>
</Summary>
代码：
使用System;
using System;
谢谢，
mcbals
推荐答案
尝试下一个类：
// NOTE: Generated code may require at least .NET Framework 4.5 or .NET Core/Standard 2.0.
/// <remarks/>
[System.SerializableAttribute()]
[System.ComponentModel.DesignerCategoryAttribute( "code" )]
[System.Xml.Serialization.XmlTypeAttribute( AnonymousType = true )]
[System.Xml.Serialization.XmlRootAttribute( Namespace = "", IsNullable = false )]
public partial class Summary
{
private string courseField;
private SummaryStudent[] studentsField;
private SummarySeat[] room_SectionField;
private SummaryTest[] testsField;
private string overallResultField;
/// <remarks/>
public string Course
{
get
{
return this.courseField;
}
set
{
this.courseField = value;
}
}
/// <remarks/>
[System.Xml.Serialization.XmlArrayItemAttribute( "Student", IsNullable = false )]
public SummaryStudent[] Students
{
get
{
return this.studentsField;
}
set
{
this.studentsField = value;
}
}
/// <remarks/>
[System.Xml.Serialization.XmlArrayItemAttribute( "Seat", IsNullable = false )]
public SummarySeat[] Room_Section
{
get
{
return this.room_SectionField;
}
set
{
this.room_SectionField = value;
}
}
/// <remarks/>
[System.Xml.Serialization.XmlArrayItemAttribute( "Test", IsNullable = false )]
public SummaryTest[] Tests
{
get
{
return this.testsField;
}
set
{
this.testsField = value;
}
}
/// <remarks/>
public string OverallResult
{
get
{
return this.overallResultField;
}
set
{
this.overallResultField = value;
}
}
}
/// <remarks/>
[System.SerializableAttribute()]
[System.ComponentModel.DesignerCategoryAttribute( "code" )]
[System.Xml.Serialization.XmlTypeAttribute( AnonymousType = true )]
public partial class SummaryStudent
{
private string nameField;
private string valueField;
/// <remarks/>
[System.Xml.Serialization.XmlAttributeAttribute()]
public string name
{
get
{
return this.nameField;
}
set
{
this.nameField = value;
}
}
/// <remarks/>
[System.Xml.Serialization.XmlTextAttribute()]
public string Value
{
get
{
return this.valueField;
}
set
{
this.valueField = value;
}
}
}
/// <remarks/>
[System.SerializableAttribute()]
[System.ComponentModel.DesignerCategoryAttribute( "code" )]
[System.Xml.Serialization.XmlTypeAttribute( AnonymousType = true )]
public partial class SummarySeat
{
private byte numberField;
private byte rowField;
private byte columnField;
/// <remarks/>
[System.Xml.Serialization.XmlAttributeAttribute()]
public byte number
{
get
{
return this.numberField;
}
set
{
this.numberField = value;
}
}
/// <remarks/>
[System.Xml.Serialization.XmlAttributeAttribute()]
public byte row
{
get
{
return this.rowField;
}
set
{
this.rowField = value;
}
}
/// <remarks/>
[System.Xml.Serialization.XmlAttributeAttribute()]
public byte column
{
get
{
return this.columnField;
}
set
{
this.columnField = value;
}
}
}
/// <remarks/>
[System.SerializableAttribute()]
[System.ComponentModel.DesignerCategoryAttribute( "code" )]
[System.Xml.Serialization.XmlTypeAttribute( AnonymousType = true )]
public partial class SummaryTest
{
private string timeField;
private byte dayField;
private byte passField;
private byte failField;
private System.DateTime durationField;
private SummaryTestTeacher teacherField;
private string nameField;
/// <remarks/>
public string Time
{
get
{
return this.timeField;
}
set
{
this.timeField = value;
}
}
/// <remarks/>
public byte Day
{
get
{
return this.dayField;
}
set
{
this.dayField = value;
}
}
/// <remarks/>
public byte Pass
{
get
{
return this.passField;
}
set
{
this.passField = value;
}
}
/// <remarks/>
public byte Fail
{
get
{
return this.failField;
}
set
{
this.failField = value;
}
}
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute( DataType = "time" )]
public System.DateTime Duration
{
get
{
return this.durationField;
}
set
{
this.durationField = value;
}
}
/// <remarks/>
public SummaryTestTeacher Teacher
{
get
{
return this.teacherField;
}
set
{
this.teacherField = value;
}
}
/// <remarks/>
[System.Xml.Serialization.XmlAttributeAttribute()]
public string name
{
get
{
return this.nameField;
}
set
{
this.nameField = value;
}
}
}
/// <remarks/>
[System.SerializableAttribute()]
[System.ComponentModel.DesignerCategoryAttribute( "code" )]
[System.Xml.Serialization.XmlTypeAttribute( AnonymousType = true )]
public partial class SummaryTestTeacher
{
private string nameField;
private string valueField;
/// <remarks/>
[System.Xml.Serialization.XmlAttributeAttribute()]
public string name
{
get
{
return this.nameField;
}
set
{
this.nameField = value;
}
}
/// <remarks/>
[System.Xml.Serialization.XmlTextAttribute()]
public string Value
{
get
{
return this.valueField;
}
set
{
this.valueField = value;
}
}
}
（使用"编辑"，"选择性粘贴"菜单在Visual Studio中生成）。
为了获取属性，请阅读上述对象的相应属性。
这篇关于C＃反序列化XML，在某些带属性的元素上获取空值的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
