XElement Narrowing Conversion (XElement to Nullable(Of UInt64))

Cast the value of this XElement to a Nullable(Of T) of UInt64.

This API is not CLS-compliant. 

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

Public Shared Narrowing Operator CType ( _
	element As XElement _
) As Nullable(Of ULong)


Type: System.Xml.Linq.XElement
The XElement to cast to Nullable(Of T) of UInt64.

Return Value

Type: System.Nullable(Of UInt64)
A Nullable(Of T) of UInt64 that contains the content of this XElement.


The element does not contain a valid UInt64 value.

The following example creates an element with unsigned long integer content. It then retrieves the value by casting to Nullable(Of T) of UInt64.

Dim root As XElement = _ 

Dim value As Nullable(Of ULong) = CType(root.Element("Value"), Nullable(Of ULong))


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.