我正在尝试使用xml架构（xsd）验证某些XML文档。
示例代码：
private static void validateXml(string file, string schema)
{
if (!File.Exists(schema))
{
Console.WriteLine("File not found.");
return;
}
XmlReaderSettings settings = new XmlReaderSettings();
settings.DtdProcessing = DtdProcessing.Parse;
settings.ValidationType = ValidationType.Schema;
settings.ValidationFlags |= XmlSchemaValidationFlags.ProcessInlineSchema;
settings.ValidationFlags |= XmlSchemaValidationFlags.ProcessSchemaLocation;
settings.ValidationFlags |= XmlSchemaValidationFlags.ReportValidationWarnings;
settings.ValidationEventHandler += new ValidationEventHandler(ValidationCallBack);
settings.Schemas.Add(null, schema);
using (XmlReader reader = XmlReader.Create(file, settings))
while (reader.Read()) ;
}
private static void ValidationCallBack(object sender, ValidationEventArgs args)
{
Console.WriteLine("Error: " + args.Message);
}
示例xml：
<?xml version="1.0"?>
<!--PUBLIC "-//AECMA//DTD AECMA 1000D AirCrew 20010401//EN"-->
<!DOCTYPE dmodule SYSTEM "dm_aecma_avee_c_190.dtd"[
<!ENTITY entity1 SYSTEM "entity1.CGM" NDATA CGM>
]>
<dmodule>
<content>
<refs>
<norefs/>
</refs>
<acrw>
<descacrw>
<para0>
<title>Text</title>
<drill drilltyp="Text" ordered="Text">
<step id="Text" memorize="Text" dotline="Text" ordered="Text">
<procd>
<para>
<xref xrefid="fi0001-hot2" xidtype="hotspot">Text</para>
</procd>
</step>
<step id="Text" memorize="Text" dotline="Text" ordered="Text">
<procd>
<para>Text<xref xrefid="fi0001-hot3" xidtype="hotspot">Text</xref>Text</para>
</procd>
</step>
<figure id="fi0001">
<title>Text</title>
<graphic boardno="entity1">
<hotspot id="fi0001-hot1" apsname="1" type="POS" title="Text"/>
<hotspot id="fi0001-hot2" apsname="2" type="POS" title="Text"/>
<hotspot id="fi0001-hot3" apsname="3" type="POS" title="Text"/>
</graphic>
<legend>
<deflist>
<term>1</term>
<def>
<xref xrefid="fi0001-hot1" xidtype="hotspot">Text</xref>
</def>
<term>2</term>
<def>
<xref xrefid="fi0001-hot2" xidtype="hotspot">Text</xref>
</def>
<term>3</term>
<def>
<xref xrefid="fi0001-hot3" xidtype="hotspot">Text</xref>
</def>
</deflist>
</legend>
</figure>
</drill>
</para0>
</descacrw>
</acrw>
</content>
</dmodule>
示例xsd：
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
<xs:element name="dmodule">
<xs:complexType>
<xs:sequence>
<xs:element ref="idstatus"/>
<xs:element ref="content"/>
</xs:sequence>
<xs:attribute name="id" type="xs:ID"/>
</xs:complexType>
</xs:element>
<xs:element name="modelic" type="modelicType"/>
<xs:element name="supeqvc" type="supeqvcType"/>
<xs:element name="ecscs" type="ecscsType"/>
<xs:element name="eidc" type="eidcType"/>
<xs:element name="cidc" type="cidcType"/>
<xs:element name="discode" type="discodeType"/>
<xs:element name="discodev" type="discodevType"/>
<xs:element name="incode" type="incodeType"/>
<xs:element name="incodev" type="incodevType"/>
<xs:element name="itemloc" type="itemlocType"/>
<xs:element name="techname" type="xs:string"/>
<xs:element name="infoname" type="xs:string"/>
<xs:element name="issno">
<xs:complexType>
<xs:attribute name="issno" type="issnovalueType" use="required"/>
<xs:attribute name="type" type="issnotypeType" default="new"/>
</xs:complexType>
</xs:element>
<xs:element name="issdate">
<xs:complexType>
<xs:attribute name="year" type="YEAR" use="required"/>
<xs:attribute name="month" type="MONTH" use="required"/>
<xs:attribute name="day" type="DAY" use="required"/>
</xs:complexType>
</xs:element>
<xs:element name="language">
<xs:complexType>
<xs:attribute name="language" type="languagetypeType" use="required"/>
<xs:attribute name="country" type="countryType"/>
</xs:complexType>
</xs:element>
<xs:element name="security">
<xs:complexType>
<xs:attribute ref="class" use="required"/>
</xs:complexType>
</xs:element>
<xs:element name="rpc">
<xs:complexType mixed="true">
<xs:attribute name="rpcname" type="xs:string"/>
<xs:attribute name="id" type="xs:ID"/>
</xs:complexType>
</xs:element>
<xs:element name="orig">
<xs:complexType mixed="true">
<xs:attribute name="origname" type="xs:string"/>
<xs:attribute name="id" type="xs:ID"/>
</xs:complexType>
</xs:element>
<xs:element name="applic">
<xs:complexType>
<xs:sequence>
<xs:element ref="type" minOccurs="0"/>
<xs:element ref="model" minOccurs="0"/>
</xs:sequence>
<xs:attribute name="id" type="xs:ID"/>
<xs:attribute name="level" type="xs:NMTOKEN"/>
<xs:attribute name="mark" type="xs:NMTOKEN"/>
<xs:attribute ref="change"/>
<xs:attribute name="rfc" type="xs:string"/>
</xs:complexType>
</xs:element>
<xs:element name="type" type="xs:string"/>
<xs:element name="model">
<xs:complexType>
<xs:sequence>
<xs:element ref="version" minOccurs="0" maxOccurs="unbounded"/>
<xs:element ref="mfc" minOccurs="0"/>
<xs:element ref="batchno" minOccurs="0"/>
<xs:element ref="moduleno" minOccurs="0" maxOccurs="unbounded"/>
<xs:element ref="serialno" minOccurs="0"/>
<xs:element ref="pnr" minOccurs="0" maxOccurs="unbounded"/>
<xs:element ref="nsn" minOccurs="0"/>
<xs:element ref="customer" minOccurs="0"/>
<xs:element ref="softprog" minOccurs="0"/>
<xs:element ref="config" minOccurs="0"/>
</xs:sequence>
<xs:attribute name="model" type="xs:string" use="required"/>
</xs:complexType>
</xs:element>
<xs:element name="version">
<xs:complexType>
<xs:sequence>
<xs:element ref="versrank" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute name="version" type="xs:string" use="required"/>
<xs:attribute name="id" type="xs:ID"/>
</xs:complexType>
</xs:element>
<xs:element name="unverif">
<xs:complexType/>
</xs:element>
<xs:element name="firstver">
<xs:complexType>
<xs:attribute name="type" type="firstvertypeType" use="required"/>
</xs:complexType>
</xs:element>
<xs:element name="sbc">
<xs:complexType mixed="true">
<xs:attribute name="id" type="xs:ID"/>
</xs:complexType>
</xs:element>
<xs:element name="content">
<xs:complexType>
<xs:sequence>
<xs:element ref="refs"/>
<xs:element ref="acrw"/>
</xs:sequence>
<xs:attribute name="id" type="xs:ID"/>
</xs:complexType>
</xs:element>
<xs:element name="refs">
<xs:complexType>
<xs:choice>
<xs:element ref="norefs"/>
<xs:element ref="rdandrt"/>
<xs:element ref="refdms"/>
<xs:element ref="reftp"/>
</xs:choice>
</xs:complexType>
</xs:element>
<xs:element name="refdms">
<xs:complexType>
<xs:sequence>
<xs:element ref="refdm" maxOccurs="unbounded"/>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="refdm">
<xs:complexType>
<xs:sequence>
<xs:element ref="applic" minOccurs="0"/>
<xs:choice>
<xs:element ref="age"/>
<xs:element ref="avee"/>
</xs:choice>
<xs:element ref="issno" minOccurs="0"/>
<xs:element ref="dmtitle" minOccurs="0"/>
</xs:sequence>
<xs:attribute name="target" type="xs:string"/>
<xs:attribute name="id" type="xs:ID"/>
<xs:attribute name="level" type="xs:NMTOKEN"/>
<xs:attribute name="mark" type="xs:NMTOKEN"/>
<xs:attribute ref="change"/>
<xs:attribute name="rfc" type="xs:string"/>
</xs:complexType>
</xs:element>
<xs:element name="xref">
<xs:complexType mixed="true">
<xs:sequence>
<xs:element ref="applic" minOccurs="0"/>
<xs:choice minOccurs="0" maxOccurs="unbounded">
<xs:element ref="subscrpt"/>
<xs:element ref="supscrpt"/>
</xs:choice>
</xs:sequence>
<xs:attribute name="xrefid" type="xs:IDREF"/>
<xs:attribute ref="xidtype"/>
<xs:attribute name="target" type="xs:string"/>
<xs:attribute name="destitle" type="xs:string"/>
<xs:attribute name="pretext" type="xs:string"/>
<xs:attribute name="posttext" type="xs:string"/>
</xs:complexType>
</xs:element>
<xs:element name="symbol">
<xs:complexType mixed="true">
<xs:sequence>
<xs:element ref="applic" minOccurs="0"/>
</xs:sequence>
<xs:attribute name="boardno" type="xs:ENTITY" use="required"/>
<xs:attribute name="id" type="xs:ID"/>
</xs:complexType>
</xs:element>
<xs:element name="acrw">
<xs:complexType>
<xs:choice>
<xs:element ref="frc"/>
<xs:element ref="descacrw"/>
</xs:choice>
<xs:attribute name="id" type="xs:ID"/>
<xs:attribute ref="class"/>
</xs:complexType>
</xs:element>
<xs:element name="title">
<xs:complexType mixed="true">
<xs:choice minOccurs="0" maxOccurs="unbounded">
<xs:element ref="xref"/>
<xs:element ref="indxflag"/>
<xs:element ref="change"/>
<xs:element ref="emphasis"/>
<xs:element ref="symbol"/>
<xs:element ref="subscrpt"/>
<xs:element ref="supscrpt"/>
<xs:element ref="refdm"/>
<xs:element ref="reftp"/>
<xs:element ref="capgrp"/>
<xs:element ref="caption"/>
</xs:choice>
<xs:attribute ref="class"/>
</xs:complexType>
</xs:element>
<xs:element name="graphic">
<xs:complexType>
<xs:sequence>
<xs:element ref="hotspot" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute name="boardno" type="xs:ENTITY" use="required"/>
<xs:attribute name="id" type="xs:ID"/>
</xs:complexType>
</xs:element>
<xs:element name="hotspot">
<xs:complexType>
<xs:sequence>
<xs:element ref="applic" minOccurs="0"/>
<xs:choice minOccurs="0" maxOccurs="unbounded">
<xs:element ref="hotspot"/>
<xs:element ref="xref"/>
</xs:choice>
</xs:sequence>
<xs:attribute name="id" type="xs:ID"/>
<xs:attribute name="apsid" type="xs:string"/>
<xs:attribute name="apsname" type="xs:string"/>
<xs:attribute name="type" type="xs:string"/>
<xs:attribute name="title" type="xs:string"/>
<xs:attribute name="descript" type="xs:string"/>
<xs:attribute name="coords" type="xs:string"/>
</xs:complexType>
</xs:element>
<xs:element name="para">
<xs:complexType mixed="true">
<xs:sequence>
<xs:element ref="applic" minOccurs="0"/>
<xs:choice maxOccurs="unbounded">
<xs:choice minOccurs="0">
<xs:element ref="xref"/>
<xs:element ref="indxflag"/>
<xs:element ref="change"/>
<xs:element ref="emphasis"/>
<xs:element ref="symbol"/>
<xs:element ref="subscrpt"/>
<xs:element ref="supscrpt"/>
<xs:element ref="refdm"/>
<xs:element ref="reftp"/>
<xs:element ref="capgrp"/>
<xs:element ref="caption"/>
</xs:choice>
<xs:choice>
<xs:element ref="seqlist"/>
<xs:element ref="randlist"/>
<xs:element ref="deflist"/>
</xs:choice>
</xs:choice>
</xs:sequence>
<xs:attribute name="id" type="xs:ID"/>
<xs:attribute name="level" type="xs:NMTOKEN"/>
<xs:attribute name="mark" type="xs:NMTOKEN"/>
<xs:attribute ref="change"/>
<xs:attribute name="rfc" type="xs:string"/>
<xs:attribute ref="class"/>
</xs:complexType>
</xs:element>
<xs:element name="item">
<xs:complexType mixed="true">
<xs:sequence>
<xs:element ref="applic" minOccurs="0"/>
<xs:choice maxOccurs="unbounded">
<xs:element ref="para"/>
<xs:choice maxOccurs="unbounded">
<xs:choice minOccurs="0">
<xs:element ref="xref"/>
<xs:element ref="indxflag"/>
<xs:element ref="change"/>
<xs:element ref="emphasis"/>
<xs:element ref="symbol"/>
<xs:element ref="subscrpt"/>
<xs:element ref="supscrpt"/>
<xs:element ref="refdm"/>
<xs:element ref="reftp"/>
<xs:element ref="capgrp"/>
<xs:element ref="caption"/>
</xs:choice>
<xs:choice>
<xs:element ref="seqlist"/>
<xs:element ref="randlist"/>
<xs:element ref="deflist"/>
</xs:choice>
</xs:choice>
</xs:choice>
</xs:sequence>
<xs:attribute name="id" type="xs:ID"/>
<xs:attribute name="level" type="xs:NMTOKEN"/>
<xs:attribute name="mark" type="xs:NMTOKEN"/>
<xs:attribute ref="change"/>
<xs:attribute name="rfc" type="xs:string"/>
</xs:complexType>
</xs:element>
<xs:element name="deflist">
<xs:complexType>
<xs:sequence>
<xs:sequence minOccurs="0">
<xs:element ref="applic" minOccurs="0"/>
<xs:element ref="title"/>
</xs:sequence>
<xs:sequence maxOccurs="unbounded">
<xs:element ref="term"/>
<xs:element ref="def"/>
</xs:sequence>
</xs:sequence>
<xs:attribute name="id" type="xs:ID"/>
<xs:attribute name="level" type="xs:NMTOKEN"/>
<xs:attribute name="mark" type="xs:NMTOKEN"/>
<xs:attribute ref="change"/>
<xs:attribute name="rfc" type="xs:string"/>
<xs:attribute ref="class"/>
</xs:complexType>
</xs:element>
<xs:element name="term">
<xs:complexType mixed="true">
<xs:sequence>
<xs:element ref="applic" minOccurs="0"/>
<xs:choice minOccurs="0" maxOccurs="unbounded">
<xs:element ref="xref"/>
<xs:element ref="indxflag"/>
<xs:element ref="change"/>
<xs:element ref="emphasis"/>
<xs:element ref="symbol"/>
<xs:element ref="subscrpt"/>
<xs:element ref="supscrpt"/>
<xs:element ref="refdm"/>
<xs:element ref="reftp"/>
<xs:element ref="capgrp"/>
<xs:element ref="caption"/>
</xs:choice>
</xs:sequence>
<xs:attribute name="id" type="xs:ID"/>
<xs:attribute name="level" type="xs:NMTOKEN"/>
<xs:attribute name="mark" type="xs:NMTOKEN"/>
<xs:attribute ref="change"/>
<xs:attribute name="rfc" type="xs:string"/>
</xs:complexType>
</xs:element>
<xs:element name="def">
<xs:complexType mixed="true">
<xs:sequence>
<xs:element ref="applic" minOccurs="0"/>
<xs:choice maxOccurs="unbounded">
<xs:element ref="para"/>
<xs:choice maxOccurs="unbounded">
<xs:choice minOccurs="0">
<xs:element ref="xref"/>
<xs:element ref="indxflag"/>
<xs:element ref="change"/>
<xs:element ref="emphasis"/>
<xs:element ref="symbol"/>
<xs:element ref="subscrpt"/>
<xs:element ref="supscrpt"/>
<xs:element ref="refdm"/>
<xs:element ref="reftp"/>
<xs:element ref="capgrp"/>
<xs:element ref="caption"/>
</xs:choice>
<xs:choice>
<xs:element ref="seqlist"/>
<xs:element ref="randlist"/>
<xs:element ref="deflist"/>
</xs:choice>
</xs:choice>
</xs:choice>
</xs:sequence>
<xs:attribute name="id" type="xs:ID"/>
<xs:attribute name="level" type="xs:NMTOKEN"/>
<xs:attribute name="mark" type="xs:NMTOKEN"/>
<xs:attribute ref="change"/>
<xs:attribute name="rfc" type="xs:string"/>
</xs:complexType>
</xs:element>
<xs:element name="drill">
<xs:complexType>
<xs:sequence>
<xs:sequence>
<xs:element ref="applic" minOccurs="0"/>
<xs:element ref="title" minOccurs="0"/>
<xs:element ref="tabtitle" minOccurs="0"/>
<xs:sequence>
<xs:element ref="warning" minOccurs="0" maxOccurs="unbounded"/>
<xs:element ref="caution" minOccurs="0" maxOccurs="unbounded"/>
<xs:element ref="note" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
<xs:element ref="crew" minOccurs="0" maxOccurs="unbounded"/>
<xs:choice minOccurs="0" maxOccurs="unbounded">
<xs:element ref="para"/>
<xs:choice>
<xs:element ref="figure"/>
<xs:element ref="table"/>
<xs:element ref="foldout"/>
</xs:choice>
</xs:choice>
</xs:sequence>
<xs:choice minOccurs="0" maxOccurs="unbounded">
<xs:choice maxOccurs="unbounded">
<xs:element ref="step"/>
<xs:choice>
<xs:sequence>
<xs:element ref="if"/>
<xs:element ref="elseif" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
<xs:element ref="case"/>
</xs:choice>
</xs:choice>
<xs:element ref="subdrill" minOccurs="0" maxOccurs="unbounded"/>
</xs:choice>
<xs:element ref="endmattr" minOccurs="0"/>
</xs:sequence>
<xs:attribute ref="drilltyp" default="none"/>
<xs:attribute ref="ordered" default="on"/>
<xs:attribute name="id" type="xs:ID"/>
<xs:attribute name="level" type="xs:NMTOKEN"/>
<xs:attribute name="mark" type="xs:NMTOKEN"/>
<xs:attribute ref="change"/>
<xs:attribute name="rfc" type="xs:string"/>
<xs:attribute ref="class"/>
</xs:complexType>
</xs:element>
<xs:element name="step">
<xs:complexType>
<xs:sequence>
<xs:sequence>
<xs:element ref="applic" minOccurs="0"/>
<xs:sequence>
<xs:element ref="warning" minOccurs="0" maxOccurs="unbounded"/>
<xs:element ref="caution" minOccurs="0" maxOccurs="unbounded"/>
<xs:element ref="note" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
<xs:sequence minOccurs="0" maxOccurs="unbounded">
<xs:element ref="para"/>
<xs:element ref="note" minOccurs="0" maxOccurs="unbounded"/>
<xs:choice minOccurs="0">
<xs:element ref="figure"/>
<xs:element ref="table"/>
<xs:element ref="foldout"/>
</xs:choice>
</xs:sequence>
<xs:choice>
<xs:sequence>
<xs:element ref="crew" minOccurs="0" maxOccurs="unbounded"/>
<xs:element ref="procd"/>
<xs:choice minOccurs="0">
<xs:element ref="figure"/>
<xs:element ref="table"/>
<xs:element ref="foldout"/>
</xs:choice>
</xs:sequence>
<xs:sequence>
<xs:element ref="challeng"/>
<xs:sequence maxOccurs="unbounded">
<xs:element ref="crew" minOccurs="0" maxOccurs="unbounded"/>
<xs:element ref="response"/>
</xs:sequence>
</xs:sequence>
</xs:choice>
<xs:element ref="note" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
<xs:choice minOccurs="0" maxOccurs="unbounded">
<xs:element ref="step"/>
<xs:choice>
<xs:sequence>
<xs:element ref="if"/>
<xs:element ref="elseif" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
<xs:element ref="case"/>
</xs:choice>
</xs:choice>
</xs:sequence>
<xs:attribute name="label" type="xs:string"/>
<xs:attribute name="id" type="xs:ID"/>
<xs:attribute name="level" type="xs:NMTOKEN"/>
<xs:attribute name="mark" type="xs:NMTOKEN"/>
<xs:attribute ref="change"/>
<xs:attribute name="rfc" type="xs:string"/>
<xs:attribute ref="memorize" default="no"/>
<xs:attribute ref="dotline" default="dot"/>
<xs:attribute ref="ordered" default="on"/>
<xs:attribute ref="class"/>
</xs:complexType>
</xs:element>
<xs:element name="procd">
<xs:complexType>
<xs:sequence>
<xs:element ref="applic" minOccurs="0"/>
<xs:element ref="para"/>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="figure">
<xs:complexType>
<xs:sequence>
<xs:sequence>
<xs:element ref="applic" minOccurs="0"/>
<xs:element ref="title"/>
</xs:sequence>
<xs:choice>
<xs:sequence>
<xs:element ref="graphic"/>
<xs:element ref="rfa" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
<xs:sequence maxOccurs="unbounded">
<xs:element ref="sheet"/>
<xs:element ref="graphic"/>
<xs:element ref="rfa" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
</xs:choice>
<xs:element ref="legend" minOccurs="0"/>
</xs:sequence>
<xs:attribute name="id" type="xs:ID"/>
<xs:attribute name="level" type="xs:NMTOKEN"/>
<xs:attribute name="mark" type="xs:NMTOKEN"/>
<xs:attribute ref="change"/>
<xs:attribute name="rfc" type="xs:string"/>
<xs:attribute ref="class"/>
</xs:complexType>
</xs:element>
<xs:element name="legend">
<xs:complexType>
<xs:sequence>
<xs:element ref="deflist"/>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="descacrw">
<xs:complexType>
<xs:choice minOccurs="0" maxOccurs="unbounded">
<xs:sequence>
<xs:sequence>
<xs:element ref="warning" minOccurs="0" maxOccurs="unbounded"/>
<xs:element ref="caution" minOccurs="0" maxOccurs="unbounded"/>
<xs:element ref="note" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
<xs:element ref="para0" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
<xs:choice>
<xs:element ref="figure"/>
<xs:element ref="table"/>
<xs:element ref="foldout"/>
</xs:choice>
</xs:choice>
<xs:attribute ref="class"/>
</xs:complexType>
</xs:element>
<xs:element name="para0">
<xs:complexType>
<xs:sequence>
<xs:sequence>
<xs:sequence>
<xs:element ref="applic" minOccurs="0"/>
<xs:element ref="title" minOccurs="0"/>
</xs:sequence>
<xs:sequence>
<xs:choice minOccurs="0" maxOccurs="unbounded">
<xs:element ref="specpara"/>
<xs:element ref="para"/>
<xs:choice minOccurs="0">
<xs:element ref="figure"/>
<xs:element ref="table"/>
<xs:element ref="foldout"/>
</xs:choice>
</xs:choice>
<xs:element ref="drill" minOccurs="0"/>
</xs:sequence>
</xs:sequence>
<xs:element ref="subpara1" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute name="id" type="xs:ID"/>
<xs:attribute name="level" type="xs:NMTOKEN"/>
<xs:attribute name="mark" type="xs:NMTOKEN"/>
<xs:attribute ref="change"/>
<xs:attribute name="rfc" type="xs:string"/>
<xs:attribute ref="class"/>
</xs:complexType>
</xs:element>
<xs:simpleType name="modelicType">
<xs:restriction base="xs:string">
<xs:pattern value="[A-Za-z0-9]{2,14}"/>
</xs:restriction>
</xs:simpleType>
<xs:simpleType name="discodeType">
<xs:restriction base="xs:string">
<xs:pattern value="[A-Za-z0-9]{2}"/>
</xs:restriction>
</xs:simpleType>
<xs:simpleType name="discodevType">
<xs:restriction base="xs:string">
<xs:pattern value="[A-Za-z0-9]{1,3}"/>
</xs:restriction>
</xs:simpleType>
<xs:simpleType name="incodeType">
<xs:restriction base="xs:string">
<xs:pattern value="[A-Za-z0-9]{3}"/>
</xs:restriction>
</xs:simpleType>
<xs:simpleType name="incodevType">
<xs:restriction base="xs:string">
<xs:pattern value="[A-Za-z0-9]{1}"/>
</xs:restriction>
</xs:simpleType>
<xs:simpleType name="itemlocType">
<xs:restriction base="xs:string">
<xs:pattern value="[A-Za-z0-9]{1}"/>
</xs:restriction>
</xs:simpleType>
<xs:simpleType name="sdcType">
<xs:restriction base="xs:string">
<xs:pattern value="[A-Za-z0-9]{1,4}"/>
</xs:restriction>
</xs:simpleType>
<xs:simpleType name="issnovalueType">
<xs:restriction base="xs:nonNegativeInteger">
<xs:pattern value="\d{3}"/>
</xs:restriction>
</xs:simpleType>
<xs:attribute name="xidtype">
<xs:simpleType>
<xs:restriction base="xs:token">
<xs:enumeration value="figure"/>
<xs:enumeration value="table"/>
<xs:enumeration value="supply"/>
<xs:enumeration value="supequip"/>
<xs:enumeration value="spares"/>
<xs:enumeration value="para"/>
<xs:enumeration value="step"/>
<xs:enumeration value="sheet"/>
<xs:enumeration value="hotspot"/>
<xs:enumeration value="other"/>
</xs:restriction>
</xs:simpleType>
</xs:attribute>
</xs:schema>
我不是xsd文件的作者，所以我无法改变它。 当我使用Oxygen验证xml文件时，它会成功验证，这是正确的。但是，如果我使用Oxygen与MSXML引擎或我的C＃程序，它没有验证，错误说：ENTITIY'name'引用但未声明。
有谁知道.NET解析器为什么不“知道”ENTITIES？
更新：
我添加了一个更好的例子。原始XSD文件长约5000行，所以我试图复制重要部分。因此，xml文件是有效的，Oxygen使用默认引擎，xerces和saxon正确验证它。但是，使用MSXML .NET或MSXML 4.0引擎，解析器会抛出与我的程序相同的错误：
Programname: MSXML.NET
description: Verweis auf eine nicht deklarierte ID ist 'fi0001-hot3'.
line: 73 position: 34 (<para>Text<xref xrefid="fi0001-hot3" xidtype="hotspot">)
Programname: MSXML.NET
description: Verweis auf eine nicht deklarierte ID ist 'fi0001-hot2'.
line: 68 position: 16 (<xref xrefid="fi0001-hot2" xidtype="hotspot">Text</xref>)
有时甚至会抛出错误：
Programname: MSXML.NET
description: Verweis auf eine nicht deklarierte ENTITY ist 'entity1'.
但只有MSXML解析器，其他人正常工作。
那么为什么MSXML解析器出现了ENTITIES和ID声明的问题？