ValidationEventArgs.Severity プロパティ
アセンブリ: System.Xml (system.xml.dll 内)

検証イベントの重大度レベルを表す XmlSeverityType 値。

XML ファイルを検証して、検出されたエラーまたは警告を生成する例を次に示します。
Imports System Imports System.IO Imports System.Xml Imports System.Xml.Schema Public Class Sample Public Shared Sub Main() 'Load the XmlSchemaSet. Dim schemaSet As New XmlSchemaSet() schemaSet.Add("urn:bookstore-schema", "books.xsd") 'Validate the file using the schema stored in the schema set. 'Any elements belonging to the namespace "urn:cd-schema" generate 'a warning because there is no schema matching that namespace. Validate("store.xml", schemaSet) End Sub Shared Sub Validate(ByVal filename As String, ByVal schemaSet As XmlSchemaSet) Console.WriteLine() Console.WriteLine("\r\nValidating XML file {0}...", filename.ToString()) Dim compiledSchema As XmlSchema = Nothing For Each schema As XmlSchema In schemaSet.Schemas() compiledSchema = schema Next Dim settings As New XmlReaderSettings() settings.Schemas.Add(compiledSchema) AddHandler settings.ValidationEventHandler, AddressOf ValidationCallBack settings.ValidationType = ValidationType.Schema 'Create the schema validating reader. Dim vreader As XmlReader = XmlReader.Create(filename, settings) While (vreader.Read()) End While 'Close the reader. vreader.Close() End Sub 'Display any warnings or errors. Private Shared Sub ValidationCallBack(ByVal sender As Object, ByVal args As ValidationEventArgs) If (args.Severity = XmlSeverityType.Warning) Then Console.WriteLine(" Warning: Matching schema not found. No validation occurred." + args.Message) Else Console.WriteLine(" Validation error: " + args.Message) End If End Sub End Class
using System; using System.IO; using System.Xml; using System.Xml.Schema; public class Sample { public static void Main() { //Load the XmlSchemaSet. XmlSchemaSet schemaSet = new XmlSchemaSet(); schemaSet.Add("urn:bookstore-schema", "books.xsd"); //Validate the file using the schema stored in the schema set. //Any elements belonging to the namespace "urn:cd-schema" generate //a warning because there is no schema matching that namespace. Validate("store.xml", schemaSet); Console.ReadLine(); } private static void Validate(String filename, XmlSchemaSet schemaSet) { Console.WriteLine(); Console.WriteLine("\r\nValidating XML file {0}...", filename.ToString()); XmlSchema compiledSchema = null; foreach (XmlSchema schema in schemaSet.Schemas()) { compiledSchema = schema; } XmlReaderSettings settings = new XmlReaderSettings(); settings.Schemas.Add(compiledSchema); settings.ValidationEventHandler += new ValidationEventHandler(ValidationCallBack); settings.ValidationType = ValidationType.Schema; //Create the schema validating reader. XmlReader vreader = XmlReader.Create(filename, settings); while (vreader.Read()) { } //Close the reader. vreader.Close(); } //Display any warnings or errors. private static void ValidationCallBack(object sender, ValidationEventArgs args) { if (args.Severity == XmlSeverityType.Warning) Console.WriteLine("\tWarning: Matching schema not found. No validation occurred." + args.Message); else Console.WriteLine("\tValidation error: " + args.Message); } }
store.xml
<?xml version='1.0'?> <bookstore xmlns="urn:bookstore-schema" xmlns:cd="urn:cd-schema"> <book genre="novel"> <title>The Confidence Man</title> <price>11.99</price> </book> <cd:cd> <title>Americana</title> <cd:artist>Offspring</cd:artist> <price>16.95</price> </cd:cd> </bookstore>
books.xsd
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="urn:bookstore-schema" elementFormDefault="qualified" targetNamespace="urn:bookstore-schema"> <xsd:element name="bookstore" type="bookstoreType"/> <xsd:complexType name="bookstoreType"> <xsd:sequence maxOccurs="unbounded"> <xsd:element name="book" type="bookType"/> </xsd:sequence> </xsd:complexType> <xsd:complexType name="bookType"> <xsd:sequence> <xsd:element name="title" type="xsd:string"/> <xsd:element name="author" type="authorName"/> <xsd:element name="price" type="xsd:decimal"/> </xsd:sequence> <xsd:attribute name="genre" type="xsd:string"/> </xsd:complexType> <xsd:complexType name="authorName"> <xsd:sequence> <xsd:element name="first-name" type="xsd:string"/> <xsd:element name="last-name" type="xsd:string"/> </xsd:sequence> </xsd:complexType> </xsd:schema>

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