M_CodeJam_Xml_XNodeExtensions_RequiredElement_1

XNodeExtensions.RequiredElement Method (XElement, XName[])

Returns child element with one of names in names, or throws an exception if element does not exists.

Namespace: CodeJam.Xml
Assembly: CodeJam (in CodeJam.dll) Version: 2.1.0.0

Syntax

C#

public static XElement RequiredElement(
	this XElement parent,
	params XName[] names
)

VB

<ExtensionAttribute>
Public Shared Function RequiredElement ( 
	parent As XElement,
	ParamArray names As XName()
) As XElement

F#

[<ExtensionAttribute>]
static member RequiredElement : 
        parent : XElement * 
        names : XName[] -> XElement 

Parameters

 

parent

Type: System.Xml.Linq.XElement
Parent element.

names

Type: System.Xml.Linq.XName[]
Possible names of the element.

Return Value

Type: XElement
First element that match one of specified names.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type XElement. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

Exceptions

 

Exception	Condition
ArgumentNullException	parent or names is null.
XmlException	Element with one of specified names does not exists.

See Also

Reference

XNodeExtensions Class
RequiredElement Overload
CodeJam.Xml Namespace