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propertyDescription

  • Άρθρο

Describes a single unique canonical property. Every such property intended to be available in the system must have a corresponding propertyDescription element.

Syntax for Windows 7

<!-- propertyDescription for Windows 7-->
<xs:element name="propertyDescription">
    <xs:complexType>
        <xs:all>
            <xs:element ref="searchInfo"          minOccurs="0" maxOccurs="1"/>
            <xs:element ref="labelInfo"           minOccurs="0" maxOccurs="1"/>
            <xs:element ref="typeInfo"            minOccurs="0" maxOccurs="1"/>
            <xs:element ref="aliasInfo"           minOccurs="0" maxOccurs="1"/>
            <xs:element ref="displayInfo"         minOccurs="0" maxOccurs="1"/>
            <xs:element ref="relatedPropertyInfo" minOccurs="0" maxOccurs="1"/>
        </xs:all>

        <xs:attribute name="formatID"  type="uuid" use="required"/>
        <xs:attribute name="propID"    type="propid" use="required"/>
        <xs:attribute name="name"      type="canonical-name"        use="required"/>
    </xs:complexType>
</xs:element>

Syntax for Vista

<!-- propertyDescription for Windows Vista-->
<xs:element name="propertyDescription">
    <xs:complexType>
        <xs:all>
            <xs:element ref="searchInfo"          minOccurs="0" maxOccurs="1"/>
            <xs:element ref="labelInfo"           minOccurs="0" maxOccurs="1"/>
            <xs:element ref="typeInfo"            minOccurs="0" maxOccurs="1"/>
            <xs:element ref="aliasInfo"           minOccurs="0" maxOccurs="1"/>
            <xs:element ref="displayInfo"         minOccurs="0" maxOccurs="1"/>
        </xs:all>

        <xs:attribute name="formatID"  type="uuid" use="required"/>
        <xs:attribute name="propID"    type="xs:nonNegativeInteger" use="required"/>
        <xs:attribute name="name"      type="canonical-name"        use="required"/>
    </xs:complexType>
</xs:element>

Element Information

Parent Element Child Elements
propertyDescriptionList searchInfo
labelInfo
typeInfo
aliasInfo
displayInfo
relatedPropertyInfo

 

Attributes

Attribute Description
name Required. The canonical property name, unique to the system; for example, System.Rating. This string is of type canonical-type and is limited to 64 characters. The name is case-sensitive and should use the following syntax: Publisher.Application.PropertyName. IPropertyDescription::GetCanonicalName returns this value.
formatID Required. The property's format identifier (FMTID). The value must include enclosing braces; for example, {64440492-4C8B-11D1-8B70-080036B11A03}. IPropertyDescription::GetPropertyKey returns this value.
propID Required. The property identifier (PID); for example, 9. IPropertyDescription::GetPropertyKey returns this value. This value must be greater than or equal to 2. The values 0 and 1 are reserved by the system.