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XAttribute Explicit Conversion (XAttribute to Nullable<TimeSpan>)

Cast the value of this XAttribute to a Nullable<T> of TimeSpan.

This API is not CLS-compliant. 

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

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

Parameters

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

Return Value

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

ExceptionCondition
FormatException

The attribute does not contain a valid TimeSpan value.

The value space of an attribute or element that contains time span content is closely related to duration content as described in ISO 8601. When creating an attribute or element that contains time span content, the attribute or element values are formatted per the W3C specification. Please see the W3C specification for more details.

Behavior is lax when casting to a Nullable<T> of TimeSpan 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 TimeSpan.

Silverlight

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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