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XAttribute.Explicit Operator

.NET Framework 3.5

Other Versions

Cast the value of this XAttribute 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)

Syntax

C++

JScript

public static explicit operator Nullable<ulong> (
	XAttribute attribute
)

Parameters

attribute: Type: System.Xml.Linq.XAttribute
The XAttribute to cast to a Nullable<T> of UInt64.

Return Value

Type: System.Nullable<UInt64>
A Nullable<T> of UInt64 that contains the content of this XAttribute.

Exceptions

Exception	Condition
FormatException	The attribute does not contain a valid UInt64 value.

Examples

The following example creates an attribute with unsigned long integer content. It then retrieves the value by casting to Nullable<T> of UInt64.

XElement root = new XElement("Root", 
    new XAttribute("Att", 9223372036854775807)
);
ulong? value = (ulong?)root.Attribute("Att");
Console.WriteLine("Nullable ulong: value={0}", value == null ? "null" : value.ToString());

This example produces the following output:

Nullable ulong: value=9223372036854775807

Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Version Information