XmlSchemaCompilationSettings::EnableUpaCheck Property

 

Gets or sets a value indicating whether the XmlSchemaSet should check for Unique Particle Attribution (UPA) violations.

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

public:
property bool EnableUpaCheck {
	bool get();
	void set(bool value);
}

Property Value

Type: System::Boolean

true if the XmlSchemaSet should check for Unique Particle Attribution (UPA) violations; otherwise, false. The default is true.

When the EnableUpaCheck property is set to false, validation will be performed based on the following rules.

  1. If there is a choice between a strong type and a wildcard, the XmlSchemaSet will pick the strongly typed particle as illustrated in the following schema and Xml examples.

<xs:sequence>

    <xs:any namespace="##any"/>

    <xs:element name="A" type="xs:string" minOccurs="0"/>

</xs:sequence>

In the following Xml, the A element will be associated with <xs:element name="A" type="xs:string" minOccurs="0"/> in the schema.

<A>some text</A>

  1. If there is a choice between two strongly typed elements, the XmlSchemaSet will pick the first one.

<xs:sequence>

    <xs:element name="A" type="xs:string"/>

    <xs:element name="B" type="xs:string" minOccurs="0"/>

    <xs:element name="B" type="xs:string"/>

</xs:sequence>

In the following Xml, the B element will be associated with <xs:element name="B" type="xs:string" minOccurs="0"/> in the schema.

<A/>

<B/>

.NET Framework
Available since 2.0
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