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XmlReader.Create Method (TextReader, XmlReaderSettings, String)

Creates a new XmlReader instance using the specified TextReader, XmlReaderSettings, and base URI.

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

public static XmlReader Create(
	TextReader input,
	XmlReaderSettings settings,
	string baseUri


Type: System.IO.TextReader

The TextReader from which to read the XML data. Because a TextReader returns a stream of Unicode characters, the encoding specified in the XML declaration is not used by the XmlReader to decode the data stream.

Type: System.Xml.XmlReaderSettings

The XmlReaderSettings object used to configure the new XmlReader instance. This value can be null.

Type: System.String

The base URI for the entity or document being read. This value can be null.

Security Note   The base URI is used to resolve the relative URI of the XML document. Do not use a base URI from an untrusted source.

Return Value

Type: System.Xml.XmlReader
An XmlReader object to read XML data.


The input value is null.

By default an XmlUrlResolver with no credentials is used to access any external resources such as a document type definition (DTD), entities, schemas, and so on. If the external resource is located on a network resource that requires authentication, use the XmlReaderSettings.XmlResolver property to specify an XmlResolver with the necessary credentials.

Security noteSecurity Note:

You can use one of the following methods to control which resources the XmlReader can access:

Restrict the resources that the XmlReader can access by setting the XmlResolver property to an XmlSecureResolver object.


Do not allow the XmlReader to open any external resources by setting the XmlResolver property to null.

The created XmlReader object expands entity references and performs XML normalization of new line characters.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

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

.NET Framework

Supported in: 3.5, 3.0, 2.0

.NET Compact Framework

Supported in: 3.5, 2.0

XNA Framework

Supported in: 3.0, 2.0, 1.0