XmlSchemaValidator.ValidateElement 메서드

참조

정의

네임스페이스:: System.Xml.Schema

어셈블리:: System.Xml.ReaderWriter.dll

어셈블리:: System.Xml.dll

어셈블리:: netstandard.dll

중요

일부 정보는 릴리스되기 전에 상당 부분 수정될 수 있는 시험판 제품과 관련이 있습니다. Microsoft는 여기에 제공된 정보에 대해 어떠한 명시적이거나 묵시적인 보증도 하지 않습니다.

현재 컨텍스트에서 요소의 유효성을 검사합니다.

오버로드

ValidateElement(String, String, XmlSchemaInfo)	현재 컨텍스트에서 요소의 유효성을 검사합니다.
ValidateElement(String, String, XmlSchemaInfo, String, String, String, String)	지정된 `xsi:Type`, `xsi:Nil`, `xsi:SchemaLocation` 및 `xsi:NoNamespaceSchemaLocation` 특성 값으로 현재 컨텍스트에서 요소의 유효성을 검사합니다.

ValidateElement(String, String, XmlSchemaInfo)

현재 컨텍스트에서 요소의 유효성을 검사합니다.

public:
 void ValidateElement(System::String ^ localName, System::String ^ namespaceUri, System::Xml::Schema::XmlSchemaInfo ^ schemaInfo);

public void ValidateElement (string localName, string namespaceUri, System.Xml.Schema.XmlSchemaInfo? schemaInfo);

public void ValidateElement (string localName, string namespaceUri, System.Xml.Schema.XmlSchemaInfo schemaInfo);

member this.ValidateElement : string * string * System.Xml.Schema.XmlSchemaInfo -> unit

Public Sub ValidateElement (localName As String, namespaceUri As String, schemaInfo As XmlSchemaInfo)

매개 변수

localName: String

유효성을 검사할 요소의 로컬 이름입니다.

namespaceUri: String

유효성을 검사할 요소의 네임스페이스 URI입니다.

schemaInfo: XmlSchemaInfo

요소 이름의 유효성이 성공적으로 검사될 경우 속성이 설정되는 XmlSchemaInfo 개체입니다. 이 매개 변수는 null일 수 있습니다.

예외

XmlSchemaValidationException

요소 이름이 현재 컨텍스트에서 유효하지 않은 경우

InvalidOperationException

ValidateElement 메서드가 올바른 시퀀스로 호출되지 않은 경우. 예를 들어, ValidateElement를 호출한 후 ValidateAttribute 메서드를 호출하는 경우가 여기에 해당합니다.

예제

다음 예제에서는 스키마에 대해 파일의 contosoBooks.xml 유효성을 검사합니다 contosoBooks.xsd . 이 예제에서는 XmlSerializer 클래스를 사용하여 contosoBooks.xml 파일을 역직렬화하고 노드 값을 XmlSchemaValidator 클래스의 메서드에 전달합니다.

using System;
using System.Xml;
using System.Xml.Schema;
using System.Xml.Serialization;
using System.Collections;

namespace Microsoft.Samples.Xml.Schema
{
    class XmlSchemaValidatorExamples
    {
        static void Main()
        {
            // The XML document to deserialize into the XmlSerializer object.
            XmlReader reader = XmlReader.Create("contosoBooks.xml");

            // The XmlSerializer object.
            XmlSerializer serializer = new XmlSerializer(typeof(ContosoBooks));
            ContosoBooks books = (ContosoBooks)serializer.Deserialize(reader);

            // The XmlSchemaSet object containing the schema used to validate the XML document.
            XmlSchemaSet schemaSet = new XmlSchemaSet();
            schemaSet.Add("http://www.contoso.com/books", "contosoBooks.xsd");

            // The XmlNamespaceManager object used to handle namespaces.
            XmlNamespaceManager manager = new XmlNamespaceManager(reader.NameTable);

            // Assign a ValidationEventHandler to handle schema validation warnings and errors.
            XmlSchemaValidator validator = new XmlSchemaValidator(reader.NameTable, schemaSet, manager, XmlSchemaValidationFlags.None);
            validator.ValidationEventHandler += new ValidationEventHandler(SchemaValidationEventHandler);

            // Initialize the XmlSchemaValidator object.
            validator.Initialize();

            // Validate the bookstore element, verify that all required attributes are present
            // and prepare to validate child content.
            validator.ValidateElement("bookstore", "http://www.contoso.com/books", null);
            validator.GetUnspecifiedDefaultAttributes(new ArrayList());
            validator.ValidateEndOfAttributes(null);

            // Get the next exptected element in the bookstore context.
            XmlSchemaParticle[] particles = validator.GetExpectedParticles();
            XmlSchemaElement nextElement = particles[0] as XmlSchemaElement;
            Console.WriteLine("Expected Element: '{0}'", nextElement.Name);

            foreach (BookType book in books.Book)
            {
                // Validate the book element.
                validator.ValidateElement("book", "http://www.contoso.com/books", null);

                // Get the exptected attributes for the book element.
                Console.Write("\nExpected attributes: ");
                XmlSchemaAttribute[] attributes = validator.GetExpectedAttributes();
                foreach (XmlSchemaAttribute attribute in attributes)
                {
                    Console.Write("'{0}' ", attribute.Name);
                }
                Console.WriteLine();

                // Validate the genre attribute and display its post schema validation information.
                if (book.Genre != null)
                {
                    validator.ValidateAttribute("genre", "", book.Genre, schemaInfo);
                }
                DisplaySchemaInfo();

                // Validate the publicationdate attribute and display its post schema validation information.
                if (book.PublicationDate != null)
                {
                    validator.ValidateAttribute("publicationdate", "", dateTimeGetter(book.PublicationDate), schemaInfo);
                }
                DisplaySchemaInfo();

                // Validate the ISBN attribute and display its post schema validation information.
                if (book.Isbn != null)
                {
                    validator.ValidateAttribute("ISBN", "", book.Isbn, schemaInfo);
                }
                DisplaySchemaInfo();

                // After validating all the attributes for the current element with ValidateAttribute method,
                // you must call GetUnspecifiedDefaultAttributes to validate the default attributes.
                validator.GetUnspecifiedDefaultAttributes(new ArrayList());

                // Verify that all required attributes of the book element are present
                // and prepare to validate child content.
                validator.ValidateEndOfAttributes(null);

                // Validate the title element and its content.
                validator.ValidateElement("title", "http://www.contoso.com/books", null);
                validator.ValidateEndElement(null, book.Title);

                // Validate the author element, verify that all required attributes are present
                // and prepare to validate child content.
                validator.ValidateElement("author", "http://www.contoso.com/books", null);
                validator.GetUnspecifiedDefaultAttributes(new ArrayList());
                validator.ValidateEndOfAttributes(null);

                if (book.Author.Name != null)
                {
                    // Validate the name element and its content.
                    validator.ValidateElement("name", "http://www.contoso.com/books", null);
                    validator.ValidateEndElement(null, book.Author.Name);
                }

                if (book.Author.FirstName != null)
                {
                    // Validate the first-name element and its content.
                    validator.ValidateElement("first-name", "http://www.contoso.com/books", null);
                    validator.ValidateEndElement(null, book.Author.FirstName);
                }

                if (book.Author.LastName != null)
                {
                    // Validate the last-name element and its content.
                    validator.ValidateElement("last-name", "http://www.contoso.com/books", null);
                    validator.ValidateEndElement(null, book.Author.LastName);
                }

                // Validate the content of the author element.
                validator.ValidateEndElement(null);

                // Validate the price element and its content.
                validator.ValidateElement("price", "http://www.contoso.com/books", null);
                validator.ValidateEndElement(null, book.Price);

                // Validate the content of the book element.
                validator.ValidateEndElement(null);
            }

            // Validate the content of the bookstore element.
            validator.ValidateEndElement(null);

            // Close the XmlReader object.
            reader.Close();
        }

        static XmlSchemaInfo schemaInfo = new XmlSchemaInfo();
        static object dateTimeGetterContent;

        static object dateTimeGetterHandle()
        {
            return dateTimeGetterContent;
        }

        static XmlValueGetter dateTimeGetter(DateTime dateTime)
        {
            dateTimeGetterContent = dateTime;
            return new XmlValueGetter(dateTimeGetterHandle);
        }

        static void DisplaySchemaInfo()
        {
            if (schemaInfo.SchemaElement != null)
            {
                Console.WriteLine("Element '{0}' with type '{1}' is '{2}'",
                    schemaInfo.SchemaElement.Name, schemaInfo.SchemaType, schemaInfo.Validity);
            }
            else if (schemaInfo.SchemaAttribute != null)
            {
                Console.WriteLine("Attribute '{0}' with type '{1}' is '{2}'",
                    schemaInfo.SchemaAttribute.Name, schemaInfo.SchemaType, schemaInfo.Validity);
            }
        }

        static void SchemaValidationEventHandler(object sender, ValidationEventArgs e)
        {
            switch (e.Severity)
            {
                case XmlSeverityType.Error:
                    Console.WriteLine("\nError: {0}", e.Message);
                    break;
                case XmlSeverityType.Warning:
                    Console.WriteLine("\nWarning: {0}", e.Message);
                    break;
            }
        }
    }

    [XmlRootAttribute("bookstore", Namespace = "http://www.contoso.com/books", IsNullable = false)]
    public class ContosoBooks
    {
        [XmlElementAttribute("book")]
        public BookType[] Book;
    }

    public class BookType
    {
        [XmlAttributeAttribute("genre")]
        public string Genre;

        [XmlAttributeAttribute("publicationdate", DataType = "date")]
        public DateTime PublicationDate;

        [XmlAttributeAttribute("ISBN")]
        public string Isbn;

        [XmlElementAttribute("title")]
        public string Title;

        [XmlElementAttribute("author")]
        public BookAuthor Author;

        [XmlElementAttribute("price")]
        public Decimal Price;
    }

    public class BookAuthor
    {
        [XmlElementAttribute("name")]
        public string Name;

        [XmlElementAttribute("first-name")]
        public string FirstName;

        [XmlElementAttribute("last-name")]
        public string LastName;
    }
}

Imports System.Xml
Imports System.Xml.Schema
Imports System.Xml.Serialization
Imports System.Collections


Namespace Microsoft.Samples.Xml.Schema

    Class XmlSchemaValidatorExamples

        Shared Sub Main()

            ' The XML document to deserialize into the XmlSerializer object.
            Dim reader As XmlReader = XmlReader.Create("contosoBooks.xml")

            ' The XmlSerializer object.
            Dim serializer As XmlSerializer = New XmlSerializer(GetType(ContosoBooks))
            Dim books As ContosoBooks = CType(serializer.Deserialize(reader), ContosoBooks)

            ' The XmlSchemaSet object containing the schema used to validate the XML document.
            Dim schemaSet As XmlSchemaSet = New XmlSchemaSet()
            schemaSet.Add("http://www.contoso.com/books", "contosoBooks.xsd")

            ' The XmlNamespaceManager object used to handle namespaces.
            Dim manager As XmlNamespaceManager = New XmlNamespaceManager(reader.NameTable)

            ' Assign a ValidationEventHandler to handle schema validation warnings and errors.
            Dim validator As XmlSchemaValidator = New XmlSchemaValidator(reader.NameTable, schemaSet, manager, XmlSchemaValidationFlags.None)
            'validator.ValidationEventHandler += New ValidationEventHandler(SchemaValidationEventHandler)
            AddHandler validator.ValidationEventHandler, AddressOf SchemaValidationEventHandler

            ' Initialize the XmlSchemaValidator object.
            validator.Initialize()

            ' Validate the bookstore element, verify that all required attributes are present
            ' and prepare to validate child content.
            validator.ValidateElement("bookstore", "http://www.contoso.com/books", Nothing)

            validator.GetUnspecifiedDefaultAttributes(New ArrayList())
            validator.ValidateEndOfAttributes(Nothing)

            ' Get the next exptected element in the bookstore context.
            Dim particles() As XmlSchemaParticle = validator.GetExpectedParticles()
            Dim nextElement As XmlSchemaElement = particles(0)
            Console.WriteLine("Expected Element: '{0}'", nextElement.Name)

            For Each book As BookType In books.book
                ' Validate the book element.
                validator.ValidateElement("book", "http://www.contoso.com/books", Nothing)

                ' Get the exptected attributes for the book element.
                Console.Write(vbCrLf & "Expected attributes: ")
                Dim attributes() As XmlSchemaAttribute = validator.GetExpectedAttributes()
                For Each attribute As XmlSchemaAttribute In attributes
                    Console.Write("'{0}' ", attribute.Name)
                Next
                Console.WriteLine()

                ' Validate the genre attribute and display its post schema validation information.
                If Not book.Genre Is Nothing Then
                    validator.ValidateAttribute("genre", "", book.Genre, schemaInfo)
                End If
                DisplaySchemaInfo()

                ' Validate the publicationdate attribute and display its post schema validation information.
                If Not book.PublicationDate = Nothing Then
                    validator.ValidateAttribute("publicationdate", "", dateTimeGetter(book.PublicationDate), schemaInfo)
                End If
                DisplaySchemaInfo()

                ' Validate the ISBN attribute and display its post schema validation information.
                If Not book.Isbn Is Nothing Then
                    validator.ValidateAttribute("ISBN", "", book.Isbn, schemaInfo)
                End If
                DisplaySchemaInfo()
    
                ' After validating all the attributes for the current element with ValidateAttribute method,
                ' you must call GetUnspecifiedDefaultAttributes to validate the default attributes.
                validator.GetUnspecifiedDefaultAttributes(New ArrayList())

                ' Verify that all required attributes of the book element are present
                ' and prepare to validate child content.
                validator.ValidateEndOfAttributes(Nothing)

                ' Validate the title element and its content.
                validator.ValidateElement("title", "http://www.contoso.com/books", Nothing)
                validator.ValidateEndElement(Nothing, book.Title)

                ' Validate the author element, verify that all required attributes are present
                ' and prepare to validate child content.
                validator.ValidateElement("author", "http://www.contoso.com/books", Nothing)

                validator.GetUnspecifiedDefaultAttributes(New ArrayList())
                validator.ValidateEndOfAttributes(Nothing)

                If Not book.Author.Name Is Nothing Then
                    ' Validate the name element and its content.
                    validator.ValidateElement("name", "http://www.contoso.com/books", Nothing)
                    validator.ValidateEndElement(Nothing, book.Author.Name)
                End If

                If Not book.Author.FirstName Is Nothing Then
                    ' Validate the first-name element and its content.
                    validator.ValidateElement("first-name", "http://www.contoso.com/books", Nothing)
                    validator.ValidateEndElement(Nothing, book.Author.FirstName)

                End If

                If Not book.Author.LastName Is Nothing Then
                    ' Validate the last-name element and its content.
                    validator.ValidateElement("last-name", "http://www.contoso.com/books", Nothing)
                    validator.ValidateEndElement(Nothing, book.Author.LastName)
                End If

                ' Validate the content of the author element.
                validator.ValidateEndElement(Nothing)

                ' Validate the price element and its content.
                validator.ValidateElement("price", "http://www.contoso.com/books", Nothing)
                validator.ValidateEndElement(Nothing, book.Price)

                ' Validate the content of the book element.
                validator.ValidateEndElement(Nothing)
            Next

            ' Validate the content of the bookstore element.
            validator.ValidateEndElement(Nothing)

            ' Close the XmlReader object.
            reader.Close()

        End Sub

        Shared schemaInfo As XmlSchemaInfo = New XmlSchemaInfo()
        Shared dateTimeGetterContent As Object

        Shared Function dateTimeGetterHandle() As Object

            Return dateTimeGetterContent

        End Function

        Shared Function dateTimeGetter(ByVal dateTime As DateTime) As XmlValueGetter

            dateTimeGetterContent = dateTime
            Return New XmlValueGetter(AddressOf dateTimeGetterHandle)

        End Function

        Shared Sub DisplaySchemaInfo()

            If Not schemaInfo.SchemaElement Is Nothing Then
                Console.WriteLine("Element '{0}' with type '{1}' is '{2}'", schemaInfo.SchemaElement.Name, schemaInfo.SchemaType, schemaInfo.Validity)
            ElseIf Not schemaInfo.SchemaAttribute Is Nothing Then
                Console.WriteLine("Attribute '{0}' with type '{1}' is '{2}'", schemaInfo.SchemaAttribute.Name, schemaInfo.SchemaType, schemaInfo.Validity)
            End If

        End Sub

        Shared Sub SchemaValidationEventHandler(ByVal sender As Object, ByVal e As ValidationEventArgs)

            Select Case e.Severity
                Case XmlSeverityType.Error
                    Console.WriteLine(vbCrLf & "Error: {0}", e.Message)
                    Exit Sub
                Case XmlSeverityType.Warning
                    Console.WriteLine(vbCrLf & "Warning: {0}", e.Message)
                    Exit Sub
            End Select

        End Sub

    End Class

    <XmlRootAttribute("bookstore", Namespace:="http://www.contoso.com/books", IsNullable:=False)> _
    Public Class ContosoBooks

        <XmlElementAttribute("book")> _
        Public book() As BookType

    End Class

    Public Class BookType

        <XmlAttributeAttribute("genre")> _
        Public Genre As String

        <XmlAttributeAttribute("publicationdate", DataType:="date")> _
        Public PublicationDate As DateTime

        <XmlAttributeAttribute("ISBN")> _
        Public Isbn As String

        <XmlElementAttribute("title")> _
        Public Title As String

        <XmlElementAttribute("author")> _
        Public Author As BookAuthor

        <XmlElementAttribute("price")> _
        Public Price As Decimal

    End Class

    Public Class BookAuthor

        <XmlElementAttribute("name")> _
        Public Name As String

        <XmlElementAttribute("first-name")> _
        Public FirstName As String

        <XmlElementAttribute("last-name")> _
        Public LastName As String

    End Class

End Namespace

이 예제에서는 contosoBooks.xml 파일을 입력으로 사용합니다.

<?xml version="1.0" encoding="utf-8" ?>
<bookstore xmlns="http://www.contoso.com/books">
    <book genre="autobiography" publicationdate="1981-03-22" ISBN="1-861003-11-0">
        <title>The Autobiography of Benjamin Franklin</title>
        <author>
            <first-name>Benjamin</first-name>
            <last-name>Franklin</last-name>
        </author>
        <price>8.99</price>
    </book>
    <book genre="novel" publicationdate="1967-11-17" ISBN="0-201-63361-2">
        <title>The Confidence Man</title>
        <author>
            <first-name>Herman</first-name>
            <last-name>Melville</last-name>
        </author>
        <price>11.99</price>
    </book>
    <book genre="philosophy" publicationdate="1991-02-15" ISBN="1-861001-57-6">
        <title>The Gorgias</title>
        <author>
            <name>Plato</name>
        </author>
        <price>9.99</price>
    </book>
</bookstore>

이 예제에서는 또한 contosoBooks.xsd를 입력으로 사용합니다.

<?xml version="1.0" encoding="utf-8"?>
<xs:schema attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.contoso.com/books" xmlns:xs="http://www.w3.org/2001/XMLSchema">
    <xs:element name="bookstore">
        <xs:complexType>
            <xs:sequence>
                <xs:element maxOccurs="unbounded" name="book">
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element name="title" type="xs:string" />
                            <xs:element name="author">
                                <xs:complexType>
                                    <xs:sequence>
                                        <xs:element minOccurs="0" name="name" type="xs:string" />
                                        <xs:element minOccurs="0" name="first-name" type="xs:string" />
                                        <xs:element minOccurs="0" name="last-name" type="xs:string" />
                                    </xs:sequence>
                                </xs:complexType>
                            </xs:element>
                            <xs:element name="price" type="xs:decimal" />
                        </xs:sequence>
                        <xs:attribute name="genre" type="xs:string" use="required" />
                        <xs:attribute name="publicationdate" type="xs:date" use="required" />
                        <xs:attribute name="ISBN" type="xs:string" use="required" />
                    </xs:complexType>
                </xs:element>
            </xs:sequence>
        </xs:complexType>
    </xs:element>
</xs:schema>

설명

다음은 메서드를 사용할 때 고려해야 할 중요한 참고 사항입니다 ValidateElement .

현재 컨텍스트 XmlSchemaInfo 에서 요소 이름의 유효성이 성공적으로 검사되면 개체의(지정된 경우) SchemaElement IsNil SchemaType및 Validity 속성이 유효성 검사 결과로 설정됩니다.
요소 이름 또는 해당 특성 중 일부가 현재 컨텍스트에 유효하지 않으면 속성이 Validity 로 설정 Invalid되고, 그렇지 않으면 속성이 Validity 로 NotKnown설정됩니다.

추가 정보

적용 대상

ValidateElement(String, String, XmlSchemaInfo, String, String, String, String)

지정된 xsi:Type, xsi:Nil, xsi:SchemaLocation 및 xsi:NoNamespaceSchemaLocation 특성 값으로 현재 컨텍스트에서 요소의 유효성을 검사합니다.

public:
 void ValidateElement(System::String ^ localName, System::String ^ namespaceUri, System::Xml::Schema::XmlSchemaInfo ^ schemaInfo, System::String ^ xsiType, System::String ^ xsiNil, System::String ^ xsiSchemaLocation, System::String ^ xsiNoNamespaceSchemaLocation);

public void ValidateElement (string localName, string namespaceUri, System.Xml.Schema.XmlSchemaInfo? schemaInfo, string? xsiType, string? xsiNil, string? xsiSchemaLocation, string? xsiNoNamespaceSchemaLocation);

public void ValidateElement (string localName, string namespaceUri, System.Xml.Schema.XmlSchemaInfo schemaInfo, string xsiType, string xsiNil, string xsiSchemaLocation, string xsiNoNamespaceSchemaLocation);

member this.ValidateElement : string * string * System.Xml.Schema.XmlSchemaInfo * string * string * string * string -> unit

Public Sub ValidateElement (localName As String, namespaceUri As String, schemaInfo As XmlSchemaInfo, xsiType As String, xsiNil As String, xsiSchemaLocation As String, xsiNoNamespaceSchemaLocation As String)

매개 변수

localName: String

유효성을 검사할 요소의 로컬 이름입니다.

namespaceUri: String

유효성을 검사할 요소의 네임스페이스 URI입니다.

schemaInfo: XmlSchemaInfo

요소 이름의 유효성이 성공적으로 검사될 경우 속성이 설정되는 XmlSchemaInfo 개체입니다. 이 매개 변수는 null일 수 있습니다.

xsiType: String

요소의 xsi:Type 특성 값입니다. 이 매개 변수는 null일 수 있습니다.

xsiNil: String

요소의 xsi:Nil 특성 값입니다. 이 매개 변수는 null일 수 있습니다.

xsiSchemaLocation: String

요소의 xsi:SchemaLocation 특성 값입니다. 이 매개 변수는 null일 수 있습니다.

xsiNoNamespaceSchemaLocation: String

요소의 xsi:NoNamespaceSchemaLocation 특성 값입니다. 이 매개 변수는 null일 수 있습니다.

예외

XmlSchemaValidationException

요소 이름이 현재 컨텍스트에서 유효하지 않은 경우

InvalidOperationException

설명

다음은 메서드를 사용할 때 고려해야 할 중요한 참고 사항입니다 ValidateElement .

현재 컨텍스트 XmlSchemaInfo 에서 요소 이름의 유효성이 성공적으로 검사되면 개체의(지정된 경우) SchemaElement IsNil SchemaType및 Validity 속성이 유효성 검사 결과로 설정됩니다.
요소 이름 또는 해당 특성 중 일부가 현재 컨텍스트에서 유효하지 않으면 속성이 로 설정되고, Validity 그렇지 않으면 속성이 Validity로 NotKnown설정Invalid됩니다.
값이 ProcessSchemaLocation 생성자에 xsi:SchemaLocation xsi:NoNamespaceSchemaLocation 매개 변수 XmlSchemaValidator 로 전달되지 않은 경우 특성 값은 무시됩니다.

추가 정보

적용 대상

XmlSchemaValidator.ValidateElement 메서드

정의

오버로드

ValidateElement(String, String, XmlSchemaInfo)

매개 변수

예외

예제

설명

추가 정보

적용 대상

ValidateElement(String, String, XmlSchemaInfo, String, String, String, String)

매개 변수

예외

설명

추가 정보

적용 대상

추가 리소스