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Observable.Last(Of TSource) Method (IObservable(Of TSource), Func(Of TSource, Boolean))

Returns the last element of an observable sequence that matches the predicate.

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

'Declaration
<ExtensionAttribute> _
Public Shared Function Last(Of TSource) ( _
	source As IObservable(Of TSource), _
	predicate As Func(Of TSource, Boolean) _
) As TSource
'Usage
Dim source As IObservable(Of TSource)
Dim predicate As Func(Of TSource, Boolean)
Dim returnValue As TSource

returnValue = source.Last(predicate)

Type Parameters

TSource

The type of source.

Parameters

source
Type: System.IObservable(Of TSource)
The source observable sequence.
predicate
Type: System.Func(Of TSource, Boolean)
A predicate function to evaluate for elements in the sequence.

Return Value

Type: TSource
The last element in the observable sequence for which the predicate holds.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IObservable(Of TSource). When you use instance method syntax to call this method, omit the first parameter. For more information, see http://msdn.microsoft.com/en-us/library/bb384936.aspx or http://msdn.microsoft.com/en-us/library/bb383977.aspx.
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