XmlSchemaAppInfo クラスとは何？わかりやすく解説 Weblio辞書

.NET Framework クラスライブラリリファレンス

索引トップ用語の索引ランキング

XmlSchemaAppInfo クラス

W3C (World Wide Web Consortium) appinfo 要素を表します。

名前空間: System.Xml.Schema
アセンブリ: System.Xml (system.xml.dll 内)
構文

Visual Basic (宣言)

Public Class XmlSchemaAppInfo
    Inherits XmlSchemaObject

Visual Basic (使用法)

Dim instance As XmlSchemaAppInfo

public class XmlSchemaAppInfo : XmlSchemaObject

C++

public ref class XmlSchemaAppInfo : public
 XmlSchemaObject

public class XmlSchemaAppInfo extends XmlSchemaObject

JScript

public class XmlSchemaAppInfo extends
 XmlSchemaObject

解説

appinfo 要素は、注釈内のアプリケーション固有の情報を定義します。

使用例

appinfo 要素を作成する例を次に示します。

Visual Basic

Option Explicit On
Option Strict On

Imports System
Imports System.Xml
Imports System.Xml.Schema

Class XMLSchemaExamples
    Public Shared Sub Main()
        Dim schema As New
 XmlSchema()

        ' <xs:element name="State">
        Dim element As New
 XmlSchemaElement()
        schema.Items.Add(element)
        element.Name = "State"

        ' <xs:annotation>
        Dim annNorthwestStates As New
 XmlSchemaAnnotation()
        element.Annotation = annNorthwestStates

        ' <xs:documentation>State Name</xs:documentation>
        Dim docNorthwestStates As New
 XmlSchemaDocumentation()
        annNorthwestStates.Items.Add(docNorthwestStates)
        docNorthwestStates.Markup = TextToNodeArray("State Name")

        ' <xs:appInfo>Application Information</xs:appInfo>
        Dim appInfo As New
 XmlSchemaAppInfo()
        annNorthwestStates.Items.Add(appInfo)
        appInfo.Markup = TextToNodeArray("Application Information")

        Dim schemaSet As New
 XmlSchemaSet()
        AddHandler schemaSet.ValidationEventHandler, AddressOf
 ValidationCallbackOne

        schemaSet.Add(schema)
        schemaSet.Compile()

        Dim compiledSchema As XmlSchema = Nothing

        For Each schema1 As
 XmlSchema In schemaSet.Schemas()
            compiledSchema = schema1
        Next

        Dim nsmgr As New
 XmlNamespaceManager(New NameTable())
        nsmgr.AddNamespace("xs", "http://www.w3.org/2001/XMLSchema")
        compiledSchema.Write(Console.Out, nsmgr)
    End Sub 'Main


    Public Shared Sub ValidationCallbackOne(ByVal
 sender As Object, ByVal
 args As ValidationEventArgs)

        Console.WriteLine(args.Message)
    End Sub 'ValidationCallbackOne


    Public Shared Function
 TextToNodeArray(ByVal text As String)
 As XmlNode()
        Dim doc As New XmlDocument()
        Return New XmlNode(0) {doc.CreateTextNode(text)}
    End Function 'TextToNodeArray
End Class 'XMLSchemaExamples

using System;
using System.Xml;
using System.Xml.Schema;

class XMLSchemaExamples
{
    public static void Main()
    {

        XmlSchema schema = new XmlSchema();

        // <xs:element name="State">
        XmlSchemaElement element = new XmlSchemaElement();
        schema.Items.Add(element);
        element.Name = "State";

        // <xs:annotation>
        XmlSchemaAnnotation annNorthwestStates = new XmlSchemaAnnotation();
        element.Annotation = annNorthwestStates;

        // <xs:documentation>State Name</xs:documentation>
        XmlSchemaDocumentation docNorthwestStates = new XmlSchemaDocumentation();
        annNorthwestStates.Items.Add(docNorthwestStates);
        docNorthwestStates.Markup = TextToNodeArray("State Name");

        // <xs:appInfo>Application Information</xs:appInfo>
        XmlSchemaAppInfo appInfo = new XmlSchemaAppInfo();
        annNorthwestStates.Items.Add(appInfo);
        appInfo.Markup = TextToNodeArray("Application Information");

        XmlSchemaSet schemaSet = new XmlSchemaSet();
        schemaSet.ValidationEventHandler += new ValidationEventHandler(ValidationCallbackOne);
        schemaSet.Add(schema);
        schemaSet.Compile();

        XmlSchema compiledSchema = null;

        foreach (XmlSchema schema1 in schemaSet.Schemas())
        {
            compiledSchema = schema1;
        }

        XmlNamespaceManager nsmgr = new XmlNamespaceManager(new
 NameTable());
        nsmgr.AddNamespace("xs", "http://www.w3.org/2001/XMLSchema");
        compiledSchema.Write(Console.Out, nsmgr);
    }

    public static void ValidationCallbackOne(object
 sender, ValidationEventArgs args)
    {

        Console.WriteLine(args.Message);
    }

    public static XmlNode[] TextToNodeArray(string
 text)
    {
        XmlDocument doc = new XmlDocument();
        return new XmlNode[1] { doc.CreateTextNode(text)
 };
    }
}

前述のコード例に対して生成される XML ファイルを次に示します。

<?xml version="1.0" encoding="IBM437"?>
<xs:schema  xmlns:xs="http://www.w3.org/2001/XMLSchema">
    <xs:element name="State">
        <xs:annotation>
            <xs:documentation>State
 Name</xs:documentation>
            
            <xs:appinfo>Application
 Information</xs:appinfo>
        </xs:annotation>
    </xs:element>
</xs:schema>