LxNillable<T> Class
In This Topic
Encapsulates the XSD concept of xsd:nillable, which is represented in an XML document by adding the attribute xsi:nil="true" to an element that is deemed to have a nil value.
Object Model
Syntax
'DeclarationPublic Class LxNillable(Of T) Implements ILxNillable
public class LxNillable<T> : ILxNillable
Type Parameters
- T
- The type of the underlying value to be used for the content of the XML element
Remarks
The xsd:nillable concept is often confused with the concept of optional elements.
If an element is nillable then it is still represented in the XML document, but it contains no content (text or child nodes), if it is optional and missing it is simply not there.
When a property is optional and the value is not set then its value will be null.
When a property is required and nillable the LxNillable wrapper will be used, the element will always appear in the XML document, but the IsNil property will determine if it contains any contents.
When a property is optional and nillable setting the property to null will cause it to be omitted from the XML document, setting it to an instance of a LxNillable<T> object will cause it appear in the XML document and the IsNil property will determine if it contains any contents.
For usage and examples see Working with xs:nillable elements
If an element is nillable then it is still represented in the XML document, but it contains no content (text or child nodes), if it is optional and missing it is simply not there.
When a property is optional and the value is not set then its value will be null.
When a property is required and nillable the LxNillable wrapper will be used, the element will always appear in the XML document, but the IsNil property will determine if it contains any contents.
When a property is optional and nillable setting the property to null will cause it to be omitted from the XML document, setting it to an instance of a LxNillable<T> object will cause it appear in the XML document and the IsNil property will determine if it contains any contents.
For usage and examples see Working with xs:nillable elements
Inheritance Hierarchy
System.Object
LiquidTechnologies.XmlObjects.LxNillable<T>
Requirements
Target Platforms: Windows 10, Windows 8, Windows 7, Windows Vista, Windows Server 2016, Windows Server 2012, Windows Server 2008. Please ensure you have the latest Service Pack for your operating system installed.
See Also