Qbservable.FromEventPattern<TEventArgs> Method (IQbservableProvider, Type, String)

Converts a .NET event, conforming to the standard .NET event pattern, to a queryable observable sequence, using reflection to find a static event.

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


<ExtensionAttribute> _
Public Shared Function FromEventPattern(Of TEventArgs As EventArgs) ( _
    provider As IQbservableProvider, _
    type As Type, _
    eventName As String _
) As IQbservable(Of EventPattern(Of TEventArgs))
Dim provider As IQbservableProvider
Dim type As Type
Dim eventName As String
Dim returnValue As IQbservable(Of EventPattern(Of TEventArgs))

returnValue = provider.FromEventPattern(type, _
public static IQbservable<EventPattern<TEventArgs>> FromEventPattern<TEventArgs>(
    this IQbservableProvider provider,
    Type type,
    string eventName
where TEventArgs : EventArgs
generic<typename TEventArgs>
where TEventArgs : EventArgs
static IQbservable<EventPattern<TEventArgs>^>^ FromEventPattern(
    IQbservableProvider^ provider, 
    Type^ type, 
    String^ eventName
static member FromEventPattern : 
        provider:IQbservableProvider * 
        type:Type * 
        eventName:string -> IQbservable<EventPattern<'TEventArgs>>  when 'TEventArgs : EventArgs
JScript does not support generic types and methods.

Type Parameters

  • TEventArgs
    The type for the event.


  • type
    Type: System.Type
    The type that exposes the static event to convert.
  • eventName
    Type: System.String
    The name of the event to convert.

Return Value

Type: System.Reactive.Linq.IQbservable<EventPattern<TEventArgs>>
The queryable observable sequence that contains data representations of invocations of the underlying .NET event.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IQbservableProvider. When you use instance method syntax to call this method, omit the first parameter. For more information, see or .

See Also


Qbservable Class

FromEventPattern Overload

System.Reactive.Linq Namespace