This documentation is archived and is not being maintained.

XmlSchemaAppInfo Class

Represents the World Wide Web Consortium (W3C) appinfo element.

Namespace:  System.Xml.Schema
Assembly:  System.Xml (in System.Xml.dll)

'Declaration
Public Class XmlSchemaAppInfo _
	Inherits XmlSchemaObject
'Usage
Dim instance As XmlSchemaAppInfo

The appinfo element defines application-specific information within an annotation

The following example creates an appinfo element.

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

The following XML file is generated for the preceding code example.

<?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>

System.Object
  System.Xml.Schema.XmlSchemaObject
    System.Xml.Schema.XmlSchemaAppInfo

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0

XNA Framework

Supported in: 3.0, 2.0, 1.0
Show: