ObservableCepStream.Where<TInput> Method
Filters events from an observable input stream using the specified filter expression.
Namespace: Microsoft.ComplexEventProcessing.Linq
Assembly: Microsoft.ComplexEventProcessing.Observable (in Microsoft.ComplexEventProcessing.Observable.dll)
Syntax
public static ICepObservable<TInput> Where<TInput>(
this ICepObservable<TInput> source,
Expression<Func<TInput, bool>> predicate
)
Type Parameters
- TInput
Type of the source.
Parameters
- source
Type: Microsoft.ComplexEventProcessing.Linq.ICepObservable<TInput>
The observable source to be filtered. This parameter cannot be null.
- predicate
Type: System.Linq.Expressions.Expression<Func<TInput, Boolean>>
The selection predicate. This parameter cannot be null.
Return Value
Type: Microsoft.ComplexEventProcessing.Linq.ICepObservable<TInput>
The observable stream of filtered events..
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type ICepObservable<TInput>. 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).