XmlReader.Create Method (String, XmlReaderSettings)

Creates a new XmlReader instance by using the specified URI and settings.

Namespace:  System.Xml
Assemblies:   System.Xml (in System.Xml.dll)
  System.Xml.ReaderWriter (in System.Xml.ReaderWriter.dll)

public static XmlReader Create(
	string inputUri,
	XmlReaderSettings settings
)

Parameters

inputUri
Type: System.String

The URI for the file containing the XML data. The XmlResolver object on the XmlReaderSettings object is used to convert the path to a canonical data representation. If XmlResolver is null, a new XmlUrlResolver object is used.

settings
Type: System.Xml.XmlReaderSettings

The settings for the new XmlReader instance. This value can be null.

Return Value

Type: System.Xml.XmlReader
An object that is used to read the XML data in the stream.

ExceptionCondition
ArgumentNullException

The inputUri value is null.

FileNotFoundException

The file specified by the URI cannot be found.

UriFormatException
NoteNote

In the .NET for Windows Store apps or the Portable Class Library, catch the base class exception, FormatException, instead.

The URI format is not correct.

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.

Important noteImportant

Starting with the .NET Framework 4.5.2, no default XmlUrlResolver is provided. If you’re solution targets the.NET Framework 4.5.2, specify an XmlResolver using the XmlReaderSettings.XmlResolver property.

This means that the XmlReader can access any locations that does not require authentication. 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 restrict the resources that the XmlReader can access by setting the XmlResolver property to an XmlSecureResolver object.

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

The following example creates an XmlReader object that supports document type definition (DTD) validation.

// Set the validation settings.
XmlReaderSettings settings = new XmlReaderSettings();
settings.DtdProcessing = DtdProcessing.Parse;
settings.ValidationType = ValidationType.DTD;
settings.ValidationEventHandler += new ValidationEventHandler (ValidationCallBack);

 // Create the XmlReader object.
XmlReader reader = XmlReader.Create("itemDTD.xml", settings);

// Parse the file.  
while (reader.Read()) {}

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone Silverlight 8.1, Windows Phone Silverlight 8
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