Qbservable.Buffer(Of TSource, TBufferClosing) Method (IQbservable(Of TSource), Expression(Of Func(Of IObservable(Of TBufferClosing))))

Indicates each element of a queryable observable sequence into consecutive non-overlapping buffers.

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

<ExtensionAttribute> _
Public Shared Function Buffer(Of TSource, TBufferClosing) ( _
	source As IQbservable(Of TSource), _
	bufferClosingSelector As Expression(Of Func(Of IObservable(Of TBufferClosing))) _
) As IQbservable(Of IList(Of TSource))
Dim source As IQbservable(Of TSource)
Dim bufferClosingSelector As Expression(Of Func(Of IObservable(Of TBufferClosing)))
Dim returnValue As IQbservable(Of IList(Of TSource))

returnValue = source.Buffer(bufferClosingSelector)

Type Parameters


The type of source.


The type of queryable observable sequence whose elements denote the closing of each produced buffer.


Type: System.Reactive.Linq.IQbservable(Of TSource)
The source sequence to produce buffers over.
Type: System.Linq.Expressions.Expression(Of Func(Of IObservable(Of TBufferClosing)))
A function invoked to define the boundaries of the produced buffers. A new buffer is started when the previous one is closed.

Return Value

Type: System.Reactive.Linq.IQbservable(Of IList(Of TSource))
The queryable observable sequence of buffers.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IQbservable(Of TSource). When you use instance method syntax to call this method, omit the first parameter. For more information, see https://msdn.microsoft.com/en-us/library/bb384936(v=vs.103).aspx or https://msdn.microsoft.com/en-us/library/bb383977(v=vs.103).aspx.