Проблема: Я пытаюсь проверить файл схемы XML по файлу экземпляра XML с помощью C #.Однако я продолжаю получать эти сообщения:
Could not find schema information for the element 'Courses'.
Could not find schema information for the element 'Course'.
Could not find schema information for the element 'Code'.
Could not find schema information for the attribute 'Undergrad'.
Could not find schema information for the element 'CourseName'.
Could not find schema information for the element 'Instructor'.
Could not find schema information for the element 'Name'.
Could not find schema information for the element 'First'.
Could not find schema information for the element 'Last'.
Could not find schema information for the element 'Contact'.
Could not find schema information for the attribute 'Office'.
Could not find schema information for the element 'Phone'.
Could not find schema information for the element 'Room'.
Could not find schema information for the element 'Cap'.
Мой файл схемы (tempuri.com заменяется реальным местоположением в моем текущем файле)
<?xml version="1.0" encoding="utf-8"?>
<xsd:schema targetNamespace="http://www.tempuri.com/Courses3.xsd"
elementFormDefault="qualified"
attributeFormDefault="unqualified"
xmlns="http://www.tempuri.com/Courses3.xsd"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
>
<!--definition of simple elements-->
<xsd:element name="Cap" type="xsd:integer"/>
<xsd:element name="Room" type="xsd:string"/>
<xsd:element name="Phone" type="xsd:integer"/>
<xsd:element name="First" type ="xsd:string"/>
<xsd:element name="Last" type ="xsd:string"/>
<xsd:element name="CourseName" type ="xsd:string"/>
<!--definition of attributes-->
<xsd:attribute name="Grad" type="xsd:string"/>
<xsd:attribute name="Undergrad" type="xsd:string"/>
<xsd:attribute name="Office" type="xsd:string"/>
<!--definition of complext elements-->
<!--Courses-->
<xsd:element name="Courses">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="Course" minOccurs="0" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<!--Course-->
<xsd:element name="Course">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="Code" minOccurs="1" maxOccurs="1"/>
<xsd:element ref="CourseName" minOccurs="1" maxOccurs="1"/>
<xsd:element ref="Instructor" minOccurs="1" maxOccurs="1"/>
<xsd:element ref="Room" minOccurs="0" maxOccurs="1"/>
<xsd:element ref="Cap" minOccurs="1" maxOccurs="1"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<!--Code-->
<xsd:element name="Code">
<xsd:complexType>
<xsd:attribute ref="Grad" use ="optional"/>
<xsd:attribute ref="Undergrad" use ="optional"/>
</xsd:complexType>
</xsd:element>
<!--Instructor-->
<xsd:element name="Instructor">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="Name" minOccurs="1" maxOccurs="1"/>
<xsd:element ref="Contact" minOccurs="0" maxOccurs="1"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<!--Name-->
<xsd:element name="Name">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="First" minOccurs="1" maxOccurs="1"/>
<xsd:element ref="Last" minOccurs="1" maxOccurs="1"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
<!--Contact-->
<xsd:element name="Contact">
<xsd:complexType>
<xsd:sequence>
<xsd:element ref="Phone" minOccurs="0" maxOccurs="1"/>
</xsd:sequence>
<xsd:attribute ref="Office" use ="optional"/>
</xsd:complexType>
</xsd:element>
</xsd:schema>
Мой экземпляр XML:
<?xml version="1.0" encoding="utf-8"?>
<Courses>
<Course>
<Code Undergrad ="CSEXXX"/>
<CourseName>
Programming
</CourseName>
<Instructor>
<Name>
<First>
Jim
</First>
<Last>
Bob
</Last>
</Name>
<Contact Office ="MLG562">
<Phone>
5555555555
</Phone>
</Contact>
</Instructor>
<Room>
TLK130
</Room>
<Cap>
70
</Cap>
</Course>
Мои методы проверки C #:
public string CoursesVerification(string pXMLurl, string pXSDurl)
{
XmlValidatingReader vr = null;
try
{
XmlTextReader nvr = new XmlTextReader(pXMLurl); //get xml file
nvr.WhitespaceHandling = WhitespaceHandling.None;
vr = new XmlValidatingReader(nvr); //wrap nvr in vr
vr.Schemas.Add(GetTargetNamespace(pXSDurl), pXSDurl);
vr.ValidationEventHandler += new ValidationEventHandler(ValidationCallBack);
while (vr.Read());
return _VerifyString;
}
catch (Exception ex)
{
return ex.Message;
}
finally
{
if (vr != null) vr.Close();
}
}
static string GetTargetNamespace(string src)
{
XmlTextReader nvr = null;
try
{
nvr = new XmlTextReader(src);
nvr.WhitespaceHandling = WhitespaceHandling.None;
while (nvr.Read())
{
if (nvr.NodeType == XmlNodeType.Element && nvr.LocalName == "schema")
{
while (nvr.MoveToNextAttribute())
{
if (nvr.Name == "targetNamespace") return nvr.Value;
}
}
}
return "";
}
finally
{
if (nvr != null) nvr.Close();
}
}
static void ValidationCallBack(object sender, ValidationEventArgs e)
{
if (String.Compare(_VerifyString, "No Error") == 0) _VerifyString = e.Message + "\n";
else _VerifyString += e.Message + "\n";
}
Я искал везде, пытаясь выяснить, кто явид.Что я делаю не так с этой проверкой?