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XElement Explicit Conversion (XElement to Nullable(UInt64))

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

This API is not CLS-compliant. 

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

F# does not support the declaration of new casting operators.

Parameters

element
Type: System.Xml.Linq.XElement

The XElement to cast to Nullable(T) of UInt64.

Return Value

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

ExceptionCondition
FormatException

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(T) of UInt64.

No code example is currently available or this language may not be supported.

This example produces the following output:

Nullable ulong: value=9223372036854775807

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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