CepStream.ThenByDescending<TPayload, TOrderKey> Method
Orders an ordered stream by another orderKey as indicated by rankSelector.
Namespace: Microsoft.ComplexEventProcessing.Linq
Assembly: Microsoft.ComplexEventProcessing (in Microsoft.ComplexEventProcessing.dll)
Syntax
public static CepOrderedStream<TPayload> ThenByDescending<TPayload, TOrderKey>(
this CepOrderedStream<TPayload> source,
Expression<Func<TPayload, TOrderKey>> rankSelector
)
Type Parameters
- TPayload
Payload type of the input events.
- TOrderKey
Type of the order key.
Parameters
- source
Type: Microsoft.ComplexEventProcessing.Linq.CepOrderedStream<TPayload>
Stream source to order against.
- rankSelector
Type: System.Linq.Expressions.Expression<Func<TPayload, TOrderKey>>
Expression whose value is used to compare events against each other.
Return Value
Type: Microsoft.ComplexEventProcessing.Linq.CepOrderedStream<TPayload>
An ordered stream that can further be ranked, for example, by using Take().
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type CepOrderedStream<TPayload>. 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=sql.105) or https://msdn.microsoft.com/en-us/library/bb383977(v=sql.105).