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XDocument.Load Method (String, LoadOptions)

Creates a new XDocument from a file, optionally preserving white space, setting the base URI, and retaining line information.

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

public static XDocument Load(
	string uri,
	LoadOptions options
)

Parameters

uri
Type: System.String

A URI string that references the file to load into a new XDocument.

options
Type: System.Xml.Linq.LoadOptions

A LoadOptions that specifies white space behavior, and whether to load base URI and line information.

Return Value

Type: System.Xml.Linq.XDocument
An XDocument that contains the contents of the specified file.

If the source XML is indented, setting the PreserveWhitespace flag in options causes the reader to read all white space in the source XML. Nodes of type XText are created for both significant and insignificant white space.

If the source XML is indented, not setting the PreserveWhitespace flag in options causes the reader to ignore all of the insignificant white space in the source XML. The XML tree is created without any text nodes for insignificant white space.

If the source XML is not indented, setting the PreserveWhitespace flag in options has no effect. Significant white space is still preserved, and there are no spans of insignificant white space that could cause the creation of more white space text nodes.

For more information, see Preserving White Space while Loading or Parsing XML and Preserving White Space While Serializing.

Use Parse to create an XDocument from a string that contains XML.

There is a performance penalty if you set the SetBaseUri and the SetLineInfo flags.

The base URI and the line information are accurate immediately after loading the XML document. If you modify the XML tree after loading the document, the base URI and line information may become meaningless.

LINQ to XML's loading functionality is built upon XmlReader. Therefore, you might catch any exceptions that are thrown by the XmlReader.Create overload methods and the XmlReader methods that read and parse the document.

The following example shows how to load an XDocument from a file.

This example uses the following XML document:

Sample XML File: Typical Purchase Order (LINQ to XML)

XDocument doc1 = XDocument.Load("PurchaseOrder.xml", LoadOptions.None);
Console.WriteLine("nodes if not preserving whitespace: {0}", doc1.DescendantNodes().Count());

XDocument doc2 = XDocument.Load("PurchaseOrder.xml", LoadOptions.PreserveWhitespace);
Console.WriteLine("nodes if preserving whitespace: {0}", doc2.DescendantNodes().Count());

This example produces the following output:

nodes if not preserving whitespace: 48
nodes if preserving whitespace: 82

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, 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

.NET Compact Framework

Supported in: 3.5

XNA Framework

Supported in: 3.0
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