Add Method (XmlSchema)
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XmlSchemaSet.Add Method (XmlSchema)

Note: This method is new in the .NET Framework version 2.0.

Adds the given XmlSchema to the XmlSchemaSet.

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

public XmlSchema Add (
	XmlSchema schema
public XmlSchema Add (
	XmlSchema schema
public function Add (
	schema : XmlSchema
) : XmlSchema



The XmlSchema object to add to the XmlSchemaSet.

Return Value

An XmlSchema object if the schema is valid. If the schema is not valid and a ValidationEventHandler is specified, then a null reference (Nothing in Visual Basic) is returned and the appropriate validation event is raised. Otherwise an XmlSchemaException is thrown.

Exception typeCondition


The schema is not valid.


The XmlSchema object passed as a parameter is a null reference (Nothing in Visual Basic).

If the XmlSchema object already exists in the XmlSchemaSet, the Add method does nothing.

The functionality of this method is identical to that of the Add method.

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0

.NET Compact Framework

Supported in: 2.0
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