为什么我的XML验证失败了它的架构？

Question

我需要针对模式验证XML文件.XML文件是在代码中生成的,在我保存之前,我需要验证它是否正确.

我已经把问题解决了它最简单的元素,但我遇到了问题.

XML:

<?xml version="1.0" encoding="utf-16"?>
<MRIDSupportingData xmlns="urn:GenericLabData">
  <MRIDNumber>MRIDDemo</MRIDNumber>
  <CrewMemberIdentifier>1234</CrewMemberIdentifier>
  <PrescribedTestDate>1/1/2005</PrescribedTestDate>
</MRIDSupportingData>

架构:

<?xml version="1.0" encoding="utf-16"?>
<xs:schema xmlns="urn:GenericLabData" targetNamespace="urn:GenericLabData" 
   xmlns:xs="http://www.w3.org/2001/XMLSchema">

   <xs:element name="MRIDSupportingData">
   <xs:complexType> 
      <xs:sequence>
        <xs:element name="MRIDNumber" type="xs:string" /> 
        <xs:element minOccurs="1" name="CrewMemberIdentifier" type="xs:string" />
      </xs:sequence>
   </xs:complexType>
  </xs:element>
</xs:schema>  

ValidationCode :(这段代码来自我编写的一个简单的应用程序来测试验证逻辑.XML和XSD文件存储在磁盘上并从那里读取.在实际的应用程序中,XML文件已经作为XmlDocument存储在内存中对象和XSD将从内部Web服务器读取.)

private void Validate()
{
  XmlReaderSettings settings = new XmlReaderSettings();
  settings.ValidationType = ValidationType.Schema;
  //settings.ValidationFlags |= XmlSchemaValidationFlags.ProcessInlineSchema;
  //settings.ValidationFlags |= XmlSchemaValidationFlags.ProcessSchemaLocation;
  //settings.ValidationFlags |= XmlSchemaValidationFlags.ReportValidationWarnings;
  settings.ValidationEventHandler += new ValidationEventHandler(OnValidate);

  XmlSchemaSet schemas = new XmlSchemaSet();
  settings.Schemas = schemas;
  try
  {
    schemas.Add(null, schemaPathTextBox.Text);
    using (XmlReader reader = XmlReader.Create(xmlDocumentPathTextBox.Text, settings))
    {
      validateText.AppendLine("Validating...");
      while (reader.Read()) ;
      validateText.AppendLine("Finished Validating");
      textBox1.Text = validateText.ToString();
    }
  }
  catch (Exception ex)
  {
    textBox1.Text = ex.ToString();
  }

}

StringBuilder validateText = new StringBuilder();
private void OnValidate(object sender, ValidationEventArgs e)
{
  switch (e.Severity)
  {
    case XmlSeverityType.Error:
      validateText.AppendLine(string.Format("Error: {0}", e.Message));
      break;
    case XmlSeverityType.Warning:
      validateText.AppendLine(string.Format("Warning {0}", e.Message));
      break;
  }
}

使用上面定义的XML和XSD文件运行上面的代码时,我得到以下输出:

验证...错误:命名空间'urn:GenericLabData'中的元素'MRIDSupportingData'在命名空间'urn:GenericLabData'中具有无效的子元素'MRIDNumber'.预期可能元素列表:'MRIDNumber'.完成验证

我错过了什么？据我所知,MRIDNumber是MRIDNumber,为什么会出错呢？

实际的XML文件和XSD一样大,但它在一开始就失败了,所以我把问题简化为几乎没有.

对此的任何帮助都会很棒.

谢谢,
基思

---

顺便说一句,这些文件确实有效:

XML:

<?xml version='1.0'?>
<bookstore xmlns="urn:bookstore-schema">
  <book genre="novel">
    <title>The Confidence Man</title>
    <author>
      <first-name>Herman</first-name>
      <last-name>Melville</last-name>
    </author>
    <price>11.99</price>
  </book>
</bookstore>

架构:

  <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
    xmlns="urn:bookstore-schema"
    elementFormDefault="qualified"
    targetNamespace="urn:bookstore-schema">
  <xsd:element name="bookstore">
    <xsd:complexType>
      <xsd:sequence >
        <xsd:element name="book"  maxOccurs="unbounded">
          <xsd:complexType>
            <xsd:sequence >
              <xsd:element name="title" type="xsd:string"/>
              <xsd:element name="author">
                <xsd:complexType>
                  <xsd:sequence >
                    <xsd:element name="first-name"  type="xsd:string"/>
                    <xsd:element name="last-name" type="xsd:string"/>
                  </xsd:sequence> 
                </xsd:complexType>
              </xsd:element>
              <xsd:element name="price"  type="xsd:decimal"/>
            </xsd:sequence> 
            <xsd:attribute name="genre" type="xsd:string"/>
          </xsd:complexType>
        </xsd:element>
      </xsd:sequence>    
    </xsd:complexType>   
  </xsd:element>
</xsd:schema>

Answer 1

尝试elementFormDefault="qualified"在xs:schemaXSD文件的元素中添加属性.

我认为验证器说它想要一个MRIDNumber没有命名空间的元素,而不是你的MRIDNumber元素与命名空间urn:GenericLabData.