An annotated version of MvcSiteMapSchema.xsd for http://mvcsitemap.codeplex.com/

MvcSiteMapSchema.xsd

<?xml version="1.0" encoding="utf-8" ?>
<xs:schema
    targetNamespace="http://mvcsitemap.codeplex.com/schemas/MvcSiteMap-File-2.0"
    elementFormDefault="qualified"
    xmlns="http://mvcsitemap.codeplex.com/schemas/MvcSiteMap-File-2.0"
    xmlns:xs="http://www.w3.org/2001/XMLSchema">

    <xs:annotation>
        <xs:documentation>
            <!-- _locID_text="Description" _locComment="This string is displayed as a Intellisense tooltip. {Placeholder='XmlSiteMapProvider', 'SiteMap'}" -->MvcSiteMapProvider SiteMap File Schema
        </xs:documentation>
    </xs:annotation>

    <xs:complexType name="mvcSiteMapNodeType">
        <xs:choice minOccurs="0" maxOccurs="unbounded">
            <xs:element name="mvcSiteMapNode" type="mvcSiteMapNodeType" />
        </xs:choice>
        <xs:attributeGroup ref="urlNodeAttributes" />
        <xs:attributeGroup ref="providerNodeAttributes" />
        <xs:attributeGroup ref="fileNodeAttributes" />
        <xs:attributeGroup ref="frequencyNodeAttributes" />
        <xs:anyAttribute processContents="skip" />
    </xs:complexType>

    <xs:complexType name="mvcSiteMapType">
        <xs:choice minOccurs="0" maxOccurs="1">
            <xs:element name="mvcSiteMapNode" type="mvcSiteMapNodeType"/>
        </xs:choice>
        <xs:attributeGroup ref="siteMapAttributes" />
    </xs:complexType>

    <xs:element name="mvcSiteMap" type="mvcSiteMapType" />

    <xs:attributeGroup name="urlNodeAttributes">
        <xs:attribute name="key" type="xs:string" use="optional">
            <xs:annotation>
                <xs:documentation>
                    (autogenerated) The unique identifier for the node.
                </xs:documentation>
            </xs:annotation>
        </xs:attribute>
        <xs:attribute name="url" type="xs:anyURI" use="optional">
            <xs:annotation>
                <xs:documentation>
                    (autogenerated based on routes) The URL represented by the node.
                </xs:documentation>
            </xs:annotation>
        </xs:attribute>
        <xs:attribute name="title" type="xs:string" use="required">
            <xs:annotation>
                <xs:documentation>
                    The title of the node.
                </xs:documentation>
            </xs:annotation>
        </xs:attribute>
        <xs:attribute name="description" type="xs:string" use="optional">
            <xs:annotation>
                <xs:documentation>
                    Description of the node.
                </xs:documentation>
            </xs:annotation>
        </xs:attribute>
        <xs:attribute name="area" type="xs:string" use="optional">
            <xs:annotation>
                <xs:documentation>
                    The MVC area for the sitemap node. If not specified, it will be inherited from a node higher in the hierarchy.
                </xs:documentation>
            </xs:annotation>
        </xs:attribute>
        <xs:attribute name="controller" type="xs:string" use="optional">
            <xs:annotation>
                <xs:documentation>
                    The MVC controller for the sitemap node. Case-sensitive! If not specified, it will be inherited from a node higher in the hierarchy.
                </xs:documentation>
            </xs:annotation>
        </xs:attribute>
        <xs:attribute name="action" type="xs:string" use="optional">
            <xs:annotation>
                <xs:documentation>
                    The MVC action method for the sitemap node. If not specified, it will be inherited from a node higher in the hierarchy.
                </xs:documentation>
            </xs:annotation>
        </xs:attribute>
        <xs:attribute name="roles" type="xs:string" use="optional">
            <xs:annotation>
                <xs:documentation>
                    Comma-separated list of roles allowed to access the node and its child nodes.
                </xs:documentation>
            </xs:annotation>
        </xs:attribute>
        <xs:attribute name="resourceKey" type="xs:string" use="optional">
            <xs:annotation>
                <xs:documentation>
                    Optional resource key.
                </xs:documentation>
            </xs:annotation>
        </xs:attribute>
        <xs:attribute name="clickable" type="xs:boolean" use="optional">
            <xs:annotation>
                <xs:documentation>
                    Is the node clickable or just a grouping node? Default is true.
                </xs:documentation>
            </xs:annotation>
        </xs:attribute>
        <xs:attribute name="dynamicNodeProvider" type="xs:string" use="optional" >
            <xs:annotation>
                <xs:documentation>
                    A class name implementing MvcSiteMapProvider.Extensibility.IDynamicNodeProvider and providing dynamic nodes for the site map.
                </xs:documentation>
            </xs:annotation>
        </xs:attribute>
        <xs:attribute name="urlResolver" type="xs:string" use="optional" >
            <xs:annotation>
                <xs:documentation>
                    Class that will be used to generate URLs for sitemap nodes.
                </xs:documentation>
            </xs:annotation>
        </xs:attribute>
        <xs:attribute name="visibility" type="xs:string" use="optional" >
            <xs:annotation>
                <xs:documentation>
                    Example from demo: visibility="SiteMapPathHelper,!*"
                </xs:documentation>
            </xs:annotation>
        </xs:attribute>

        <xs:attribute name="visibilityProvider" type="xs:string" use="optional" >
            <xs:annotation>
                <xs:documentation>
                    Class that will be used to determine visibility for a sitemap node.
                </xs:documentation>
            </xs:annotation>
        </xs:attribute>
        <xs:attribute name="targetFrame" type="xs:string" use="optional">
            <xs:annotation>
                <xs:documentation>
                    Optional target frame for the node link.
                </xs:documentation>
            </xs:annotation>
        </xs:attribute>

        <xs:attribute name="imageUrl" type="xs:string" use="optional">
            <xs:annotation>
                <xs:documentation>
                    Optional image to be shown by supported HtmlHelpers.
                </xs:documentation>
            </xs:annotation>
        </xs:attribute>
    </xs:attributeGroup>

    <xs:attributeGroup name="fileNodeAttributes">
        <xs:attribute name="siteMapFile" type="xs:string" use="optional" />
        <xs:attribute name="securityTrimmingEnabled" type="small_boolean_Type" default="false" />
    </xs:attributeGroup>

    <xs:attributeGroup name="providerNodeAttributes">
        <xs:attribute name="provider" type="xs:string" use="optional" />
    </xs:attributeGroup>

    <xs:attributeGroup name="frequencyNodeAttributes">
        <xs:attribute name="lastModifiedDate" type="xs:dateTime" use="optional">
            <xs:annotation>
                <xs:documentation>
                    Last modified date for the node.
                </xs:documentation>
            </xs:annotation>
        </xs:attribute>

        <xs:attribute name="changeFrequency" type="changefrequency_type" use="optional" default="Undefined" >
            <xs:annotation>
                <xs:documentation>
                    Change frequency for the node.
                </xs:documentation>
            </xs:annotation>
        </xs:attribute>
        <xs:attribute name="updatePriority" type="updatepriority_type" default="Undefined" use="optional">
            <xs:annotation>
                <xs:documentation>
                    Update priority for the node.
                </xs:documentation>
            </xs:annotation>
        </xs:attribute>
    </xs:attributeGroup>

    <xs:attributeGroup name="siteMapAttributes">
        <xs:attribute name="enableLocalization" type="small_boolean_Type" default="false" use="optional" />
    </xs:attributeGroup>

    <xs:simpleType name="small_boolean_Type">
        <xs:restriction base="xs:NMTOKEN">
            <xs:enumeration value="false" />
            <xs:enumeration value="true" />
        </xs:restriction>
    </xs:simpleType>

    <xs:simpleType name="changefrequency_type">
        <xs:restriction base="xs:NMTOKEN">
            <xs:enumeration value="Undefined" />
            <xs:enumeration value="Always" />
            <xs:enumeration value="Never" />
            <xs:enumeration value="Hourly" />
            <xs:enumeration value="Daily" />
            <xs:enumeration value="Weekly" />
            <xs:enumeration value="Monthly" />
            <xs:enumeration value="Yearly" />
        </xs:restriction>
    </xs:simpleType>

    <xs:simpleType name="updatepriority_type">
        <xs:restriction base="xs:NMTOKEN">
            <xs:enumeration value="Undefined" />
            <xs:enumeration value="Automatic" />
            <xs:enumeration value="Low" />
            <xs:enumeration value="Normal" />
            <xs:enumeration value="High" />
            <xs:enumeration value="Critical" />
        </xs:restriction>
    </xs:simpleType>
</xs:schema>