XAttribute Narrowing Conversion (XAttribute to Boolean)


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equivalentCodeEntityop_Explicit(XAttribute attribute)

Cast the value of this XAttribute to a Boolean.

This API is not CLS-compliant.

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

Public Shared Narrowing Operator CType (
	attribute As XAttribute
) As Boolean


Type: System.Xml.Linq.XAttribute

The XAttribute to cast to Boolean.

Return Value

Type: System.Boolean

A Boolean that contains the content of this XAttribute.

Exception Condition

The attribute does not contain a valid Boolean value.


The attribute parameter is null.

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 an attribute with a Boolean value, then casts it to Boolean.

                Dim root As XElement = <root BoolValue="true"/>
Dim bv As Boolean = CBool(root.Attribute("BoolValue"))
Console.WriteLine("(bool)BoolValue={0}", bv)

This example produces the following output:


Universal Windows Platform
Available since 8
.NET Framework
Available since 3.5
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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