XDocument Constructors

Source:

XDocument.cs

Source:

XDocument.cs

Source:

XDocument.cs

public:
 XDocument();

public XDocument ();

Public Sub New ()

Examples

The following example creates a new document, and then adds a comment and an element to it.

XDocument doc = new XDocument();
doc.Add(new XComment("This is a comment"));
doc.Add(new XElement("Root", "content"));
Console.WriteLine(doc);

Dim doc As XDocument = New XDocument()
doc.Add(<!--This is a comment-->)
doc.Add(<Root>content</Root>)
Console.WriteLine(doc)

This example produces the following output:

<!--This is a comment-->
<Root>content</Root>

Remarks

There are not many scenarios that require you to create an XDocument. Instead, you can usually create your XML trees with an XElement root node. Unless you have a specific requirement to create a document (for example, because you have to create processing instructions and comments at the top level, or you have to support document types), it is often more convenient to use XElement as your root node.

For details about the valid content of an XDocument, see Valid Content of XElement and XDocument Objects.

See also

• Load
• LINQ to XML overview
• XDocument Class Overview

Source:

XDocument.cs

Source:

XDocument.cs

Source:

XDocument.cs

public:
 XDocument(... cli::array <System::Object ^> ^ content);

public XDocument (params object[] content);

public XDocument (params object?[] content);

new System.Xml.Linq.XDocument : obj[] -> System.Xml.Linq.XDocument

Public Sub New (ParamArray content As Object())

Parameters

Examples

The following example creates a document, and then adds a comment and an element to it. It then composes another document using the results of a query.

XDocument srcTree = new XDocument(
    new XComment("This is a comment"),
    new XElement("Root",
        new XElement("Child1", "data1"),
        new XElement("Child2", "data2"),
        new XElement("Child3", "data3"),
        new XElement("Child2", "data4"),
        new XElement("Info5", "info5"),
        new XElement("Info6", "info6"),
        new XElement("Info7", "info7"),
        new XElement("Info8", "info8")
    )
);

XDocument doc = new XDocument(
    new XComment("This is a comment"),
    new XElement("Root",
        from el in srcTree.Element("Root").Elements()
        where ((string)el).StartsWith("data")
        select el
    )
);
Console.WriteLine(doc);

Dim srcTree As XDocument = _
    <?xml version="1.0" encoding="utf-8" standalone="yes"?>
        <!--This is a comment-->
        <Root>
            <Child1>data1</Child1>
            <Child2>data2</Child2>
            <Child3>data3</Child3>
            <Child2>data4</Child2>
            <Info5>info5</Info5>
            <Info6>info6</Info6>
            <Info7>info7</Info7>
            <Info8>info8</Info8>
        </Root>
Dim doc As XDocument = _
    <?xml version="1.0" encoding="utf-8" standalone="yes"?>
        <!--This is a comment-->
        <Root>
            <%= From el In srcTree.<Root>.Elements _
                Where CStr(el).StartsWith("data") _
                Select el %>
        </Root>
Console.WriteLine(doc)

This example produces the following output:

<!--This is a comment-->
<Root>
  <Child1>data1</Child1>
  <Child2>data2</Child2>
  <Child3>data3</Child3>
  <Child2>data4</Child2>
</Root>

Remarks

There are not many scenarios that require you to create an XDocument. Instead, you can usually create your XML trees with an XElement root node. Unless you have a specific requirement to create a document (for example, because you have to create processing instructions and comments at the top level, or you have to support document types), it is often more convenient to use XElement as your root node.

For details about the valid content of an XDocument, see Valid Content of XElement and XDocument Objects.

See also

• Load
• LINQ to XML overview
• XDocument Class Overview

Source:

XDocument.cs

Source:

XDocument.cs

Source:

XDocument.cs

public:
 XDocument(System::Xml::Linq::XDocument ^ other);

public XDocument (System.Xml.Linq.XDocument other);

new System.Xml.Linq.XDocument : System.Xml.Linq.XDocument -> System.Xml.Linq.XDocument

Public Sub New (other As XDocument)

Parameters

Remarks

You use this constructor to make a deep copy of an XDocument.

This constructor traverses all nodes and attributes in the document specified in the other parameter, and creates copies of all nodes as it assembles the newly initialized XDocument.

See also

• Load
• LINQ to XML overview
• XDocument Class Overview

Source:

XDocument.cs

Source:

XDocument.cs

Source:

XDocument.cs

public:
 XDocument(System::Xml::Linq::XDeclaration ^ declaration, ... cli::array <System::Object ^> ^ content);

public XDocument (System.Xml.Linq.XDeclaration declaration, params object[] content);

public XDocument (System.Xml.Linq.XDeclaration? declaration, params object[] content);

public XDocument (System.Xml.Linq.XDeclaration? declaration, params object?[] content);

new System.Xml.Linq.XDocument : System.Xml.Linq.XDeclaration * obj[] -> System.Xml.Linq.XDocument

Public Sub New (declaration As XDeclaration, ParamArray content As Object())

Parameters

Examples

The following example uses this constructor to create a document.

XDocument srcTree = new XDocument(
    new XComment("This is a comment"),
    new XElement("Root",
        new XElement("Child1", "data1"),
        new XElement("Child2", "data2"),
        new XElement("Child3", "data3"),
        new XElement("Child2", "data4"),
        new XElement("Info5", "info5"),
        new XElement("Info6", "info6"),
        new XElement("Info7", "info7"),
        new XElement("Info8", "info8")
    )
);

XDocument doc = new XDocument(
    new XDeclaration("1.0", "utf-8", "yes"),
    new XComment("This is a new comment"),
    new XElement("Root",
        from el in srcTree.Element("Root").Elements()
        where ((string)el).StartsWith("data")
        select el
    )
);
doc.Save("Test.xml");
Console.WriteLine(File.ReadAllText("Test.xml"));

Dim srcTree As XDocument = _
    <?xml version="1.0" encoding="utf-8" standalone="yes"?>
        <!--This is a comment-->
        <Root>
            <Child1>data1</Child1>
            <Child2>data2</Child2>
            <Child3>data3</Child3>
            <Child2>data4</Child2>
            <Info5>info5</Info5>
            <Info6>info6</Info6>
            <Info7>info7</Info7>
            <Info8>info8</Info8>
        </Root>
Dim doc As XDocument = _
    <?xml version="1.0" encoding="utf-8" standalone="yes"?>
        <!--This is a new comment-->
        <Root>
            <%= From el In srcTree.<Root>.Elements _
                Where CStr(el).StartsWith("data") _
                Select el %>
        </Root>
doc.Save("Test.xml")
Console.WriteLine(File.ReadAllText("Test.xml"))

This example produces the following output:

<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<!--This is a new comment-->
<Root>
  <Child1>data1</Child1>
  <Child2>data2</Child2>
  <Child3>data3</Child3>
  <Child2>data4</Child2>
</Root>

Remarks

There are not many scenarios that require you to create an XDocument. Instead, you can usually create your XML trees with an XElement root node. Unless you have a specific requirement to create a document (for example, because you have to create processing instructions and comments at the top level, or you have to support document types), it is often more convenient to use XElement as your root node.

For details about the valid content of an XDocument, see Valid Content of XElement and XDocument Objects.

See also

• Load
• LINQ to XML overview
• XDocument Class Overview