WPFCustomControls::Converters::WrapWithCollectionConverter Class Reference

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Detailed Description

Converts a single object to a ReadOnlyCollection containing that single object.

Especially useful for binding a TreeView's ItemsSource to a single root. May be used as a markup extension.

List of all members.

Public Member Functions
object	Convert (object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
	Convert a single object value to a ReadOnlyCollection containing that object.
object	ConvertBack (object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
	Convert an IEnumerable to its first object.
override object	ProvideValue (IServiceProvider serviceProvider)
	Implements the MarkupExtension interface to return the shared Converter.
Static Public Attributes
static readonly WrapWithCollectionConverter	Converter = new WrapWithCollectionConverter()
	Common instance of this converter.

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Member Function Documentation

object WPFCustomControls::Converters::WrapWithCollectionConverter::Convert	(	object	value,
		Type	targetType,
		object	parameter,
		System.Globalization.CultureInfo	culture
	)		[inline]

Convert a single object value to a ReadOnlyCollection containing that object.

Parameters:

value	Object to wrap in a ReadOnlyCollection
targetType	Ignored.
parameter	Ignored.
culture	Ignored.

Returns:

A new ReadOnlyCollection containing only value unless value is DependencyProperty.UnsetValue, in which case it returns DependencyProperty.UnsetValue.

object WPFCustomControls::Converters::WrapWithCollectionConverter::ConvertBack	(	object	value,
		Type	targetType,
		object	parameter,
		System.Globalization.CultureInfo	culture
	)		[inline]

Convert an IEnumerable to its first object.

Parameters:

value	ReadOnlyCollection to unwrap
targetType	Ignored.
parameter	Ignored.
culture	Ignored.

Returns:

The passed in collection's first member object unless value is DependencyProperty.UnsetValue, in which case it returns DependencyProperty.UnsetValue.

override object WPFCustomControls::Converters::WrapWithCollectionConverter::ProvideValue

(

IServiceProvider

serviceProvider

)

[inline]

Implements the MarkupExtension interface to return the shared Converter.

Parameters:

serviceProvider

Not used.

Returns:

The Converter instance.

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Member Data Documentation

readonly WrapWithCollectionConverter WPFCustomControls::Converters::WrapWithCollectionConverter::Converter = new WrapWithCollectionConverter() [static]

Common instance of this converter.

May be shared to reduce memory demands, and provided by the MarkupExtension.