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XmlSchemaAppInfo Class

Defines application specific information within an annotation. Represents the World Wide Web Consortium (W3C) appinfo element.

For a list of all members of this type, see XmlSchemaAppInfo Members.


[Visual Basic]
Public Class XmlSchemaAppInfo
   Inherits XmlSchemaObject
public class XmlSchemaAppInfo : XmlSchemaObject
public __gc class XmlSchemaAppInfo : public XmlSchemaObject
public class XmlSchemaAppInfo extends XmlSchemaObject

Thread Safety

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


[Visual Basic, C#, C++] The following example creates an AppInfo element.

[Visual Basic] 
Option Explicit
Option Strict

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()
        element.Name = "State"
        ' <xs:annotation>
        Dim annNorthwestStates As New XmlSchemaAnnotation()
        element.Annotation = annNorthwestStates
        ' <xs:documentation>State Name</xs:documentation>
        Dim docNorthwestStates As New XmlSchemaDocumentation()
        docNorthwestStates.Markup = TextToNodeArray("State Name")
        ' <xs:appInfo>Application Information</xs:appInfo>
        Dim appInfo As New XmlSchemaAppInfo()
        appInfo.Markup = TextToNodeArray("Application Information")
        schema.Compile(AddressOf ValidationCallbackOne)
        Dim nsmgr As New XmlNamespaceManager(New NameTable())
        nsmgr.AddNamespace("xs", "")
        schema.Write(Console.Out, nsmgr)
    End Sub 'Main
    Public Shared Sub ValidationCallbackOne(sender As Object, args As ValidationEventArgs)
    End Sub 'ValidationCallbackOne
    Public Shared Function TextToNodeArray(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();
        element.Name = "State";

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

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

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

        schema.Compile(new ValidationEventHandler(ValidationCallbackOne));
     XmlNamespaceManager nsmgr = new XmlNamespaceManager(new NameTable());
        nsmgr.AddNamespace("xs", "");
        schema.Write(Console.Out, nsmgr);

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


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

#using <mscorlib.dll>
#using <System.Xml.dll>
using namespace System;
using namespace System::Xml;  
using namespace System::Xml::Schema;

__gc class XMLSchemaExamples {
    static void main() {

        XmlSchema* schema = new XmlSchema();

        // <xs:element name="State">
        XmlSchemaElement* element = new XmlSchemaElement();
        element->Name = S"State";

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

        // <xs:documentation>State Name</xs:documentation>
        XmlSchemaDocumentation* docNorthwestStates = new XmlSchemaDocumentation();
        docNorthwestStates->Markup = TextToNodeArray(S"State Name");

        // <xs:appInfo>Application Information</xs:appInfo>
        XmlSchemaAppInfo* appInfo = new XmlSchemaAppInfo();
        appInfo->Markup = TextToNodeArray(S"Application Information");

        schema->Compile(new ValidationEventHandler(0, ValidationCallbackOne));
        XmlNamespaceManager* nsmgr = new XmlNamespaceManager(new NameTable());
        nsmgr->AddNamespace(S"xs", S"");

    static void ValidationCallbackOne(Object* /*sender*/, ValidationEventArgs* args) {


    static XmlNode* TextToNodeArray(String* text)[] {
        XmlDocument* doc = new XmlDocument();
        XmlNode* temp[] = {doc->CreateTextNode(text)};
        return temp;

int main()

[Visual Basic, C#, C++] The following XML file is generated for the preceding code example.

<?xml version="1.0" encoding="IBM437"?>
<xs:schema  xmlns:xs="">
    <xs:element name="State">
            <xs:documentation>State Name</xs:documentation>            
            <xs:appinfo>Application Information</xs:appinfo>

[JScript] No example is available for JScript. To view a Visual Basic, C#, or C++ example, click the Language Filter button Language Filter in the upper-left corner of the page.


Namespace: System.Xml.Schema

Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

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

See Also

XmlSchemaAppInfo Members | System.Xml.Schema Namespace