XElement Explicit Conversion (XElement to Nullable<DateTime>)

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

This API is not CLS-compliant. 

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

public static explicit operator Nullable<DateTime> (
	XElement element


Type: System.Xml.Linq.XElement
The XElement to cast to Nullable<T> of DateTime.

Return Value

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


The element does not contain a valid DateTime value.

The value space of an attribute or element that contains date and time content is closely related to the dates and times described in ISO 8601. When creating an attribute or element that contains date and time content, the attribute or element values are formatted per the W3C specification. For more information, see the NOTE-datetime W3C specification.

Behavior is lax when casting to a Nullable<T> of DateTime from an attribute or element. Even if the attribute or element value is not formatted exactly per the W3C specification, the value is appropriately converted to a Nullable<T> of DateTime.

This conversion operator uses CultureInfo.InvariantCulture to convert from a DateTime.

The following example creates an element with a date and time as content. It then retrieves the value by casting to Nullable<T> of DateTime.

XElement root = new XElement("Root",
    new XElement("Value", new DateTime(2006, 10, 6, 12, 30, 0))
DateTime? value = (DateTime?)root.Element("Value");


Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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