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XElement Narrowing Conversion (XElement to Boolean)

Cast the value of this XElement to a Boolean.

This API is not CLS-compliant. 

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

'Declaration
Public Shared Narrowing Operator CType ( _
	element As XElement _
) As Boolean

Parameters

element
Type: System.Xml.Linq.XElement
The XElement to cast to Boolean.

Return Value

Type: System.Boolean
A Boolean that contains the content of this XElement.

ExceptionCondition
FormatException

The element does not contain a valid Boolean value.

ArgumentNullException

The element parameter is Nothing.

When converting to Boolean from an attribute or element, allowed values are "0", "1", and any string that produces "true" or "false" after trimming and conversion to lower case.

The following example creates some elements with boolean values. It then casts them to Boolean.


Dim output As New StringBuilder
Dim root As XElement = New XElement("Root", _
    New XElement("BoolValue1", True), _
    New XElement("BoolValue2", False))

Dim bool1 As Boolean = CBool(root.Element("BoolValue1"))
Dim bool2 As Boolean = CBool(root.Element("BoolValue2"))
output.Append(String.Format("(bool)BoolValue1={0}", bool1))
output.Append(Environment.NewLine)
output.Append(String.Format("(bool)BoolValue2={0}", bool2))
output.Append(Environment.NewLine)

OutputTextBlock.Text = output.ToString()


Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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