Explicit Conversion (XElement to Nullable(Guid))

XElement Explicit Conversion (XElement to Nullable<Guid>)

 
equivalentCodeEntity

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

This API is not CLS-compliant.

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

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

Parameters

element
Type: System.Xml.Linq.XElement

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

Return Value

Type: System.Nullable<Guid>

A Nullable<T> of Guid that contains the content of this XElement.

Exception Condition
FormatException

The element does not contain a valid Guid value.

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


                XElement root = new XElement("Root",
    new XElement("Value", new Guid("3c1cc55b-baff-4b7a-9d17-077af3aa5730"))
);
Guid? value = (Guid?)root.Element("Value");
Console.WriteLine("Nullable Guid: value={0}", value == null ? "null" : value.ToString());

This example produces the following output:

Nullable Guid: value=3c1cc55b-baff-4b7a-9d17-077af3aa5730

Universal Windows Platform
Available since 8
.NET Framework
Available since 3.5
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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