Observable.Where<TSource> Method (IObservable<TSource>, Func<TSource, Boolean>)

Namespace:  Microsoft.Phone.Reactive
Assembly:  Microsoft.Phone.Reactive (in Microsoft.Phone.Reactive.dll)


<ExtensionAttribute> _
Public Shared Function Where(Of TSource) ( _
    source As IObservable(Of TSource), _
    predicate As Func(Of TSource, Boolean) _
) As IObservable(Of TSource)
public static IObservable<TSource> Where<TSource>(
    this IObservable<TSource> source,
    Func<TSource, bool> predicate
generic<typename TSource>
static IObservable<TSource>^ Where(
    IObservable<TSource>^ source, 
    Func<TSource, bool>^ predicate
static member Where : 
        source:IObservable<'TSource> * 
        predicate:Func<'TSource, bool> -> IObservable<'TSource> 

Type Parameters

  • TSource


Return Value

Type: System.IObservable<TSource>

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IObservable<TSource>. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

Version Information

.NET for Windows Phone apps

Supported in: Windows Phone 8, Silverlight 8.1

.NET Framework Security

See Also


Observable Class

Where Overload

Microsoft.Phone.Reactive Namespace