XmlSchemaObject.Namespaces Property

 

Gets or sets the XmlSerializerNamespaces to use with this schema object.

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

public XmlSerializerNamespaces Namespaces { get; set; }

Property Value

Type: System.Xml.Serialization.XmlSerializerNamespaces

The XmlSerializerNamespaces property for the schema object.

This gives the Schema Object Model (SOM) the ability to add xmlns declarations. This is useful when you want to declare a prefix to qualify declarations from an imported schema or use in the xpath attribute of the xs:selector element.

You can also use the Namespaces property to change namespace prefixes in a schema. For example, you can change the prefix used by a schema for the W3C XML Schema namespace from xs to xsd as illustrated in the following example.

XmlSerializerNamespaces namespaces = new XmlSerializerNamespaces();
namespaces.Add("myChangedPrefix", "myImportNamespace");
s.Namespaces = namespaces;

In the following example, the prefix myImpPrefix is added at the schema element level. The prefix is then used to qualify definitions that are imported from myImportNamespace.

using System;
using System.Xml;
using System.Xml.Schema;

class XmlSchemaObject
{
    public static void Main()
    {
        XmlSchema s = new XmlSchema();
        s.TargetNamespace = "myNamespace";
        s.Namespaces.Add("myImpPrefix", "myImportNamespace");

        // Create the <xs:import> element.
        XmlSchemaImport import = new XmlSchemaImport();
        import.Namespace = "myImportNamespace";
        import.SchemaLocation = "http://www.example.com/myImportNamespace";
        s.Includes.Add(import);

        // Create an element and assign a type from imported schema.
        XmlSchemaElement elem = new XmlSchemaElement();
        elem.SchemaTypeName = new XmlQualifiedName("importType", "myImportNamespace");
        elem.Name = "element1";

        s.Items.Add(elem);
        s.Write(Console.Out);

    }
}

The example produces the following XML.

<?xml version="1.0" encoding="IBM437"?>
<schema xmlns:myImpPrefix="myImportNamespace" targetNamespace="myNamespace" xmlns="http://www.w3.org/2001/XMLSchema">
  <import schemaLocation="http://www.microsoft.com/myImportNamespace" namespace="myImportNamespace" />
  <element name="element1" type="myImpPrefix:importType" />
</schema>

.NET Framework
Available since 1.1
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