XElement Explicit Conversion (XElement to Nullable<Int64>)

Cast the value of this XElement to a Nullable<T> of Int64.

This API is not CLS-compliant. 

Namespace:  System.Xml.Linq
Assemblies:   System.Xml.Linq (in System.Xml.Linq.dll)
  System.Xml.XDocument (in System.Xml.XDocument.dll)

static explicit operator Nullable<long long> (
	XElement^ element
)

Parameters

element
Type: System.Xml.Linq::XElement

The XElement to cast to Nullable<T> of Int64.

Return Value

Type: System::Nullable<Int64>
A Nullable<T> of Int64 that contains the content of this XElement.

ExceptionCondition
FormatException

The element does not contain a valid Int64 value.

The following example creates an element with long integer content. It then retrieves the value by casting to Nullable<T> of Int64.

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

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone Silverlight 8.1, Windows Phone Silverlight 8

Portable Class Library

Supported in: Portable Class Library
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