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XElement Explicit Conversion (XElement to Nullable<Int32>)

Cast the value of this XElement to a Nullable<T> of Int32.

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)

public static explicit operator Nullable<int> (
	XElement element
)

Parameters

element
Type: System.Xml.Linq.XElement

The XElement to cast to Nullable<T> of Int32.

Return Value

Type: System.Nullable<Int32>
A Nullable<T> of Int32 that contains the content of this XElement.

ExceptionCondition
FormatException

The element does not contain a valid Int32 value.

The following example creates an element with unsigned integer content. It then retrieves the value by casting to Nullable<T> of Int32.

XElement root = new XElement("Root", 
    new XElement("Value", 2147483647)
);
int? value = (int?)root.Element("Value");
Console.WriteLine("Nullable integer: value={0}", value == null ? "null" : value.ToString());

This example produces the following output:

Nullable integer: value=2147483647

.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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