Observable.FromEvent TEventArgs 方法 (Action Action << TEventArgs >> , Action Action << TEventArgs >>) <>
將 .NET 事件轉換為可觀察的序列。
Namespace:System.Reactive.Linq
裝配: System.Reactive.dll) 中的 System.Reactive (
Syntax
'Declaration
Public Shared Function FromEvent(Of TEventArgs) ( _
addHandler As Action(Of Action(Of TEventArgs)), _
removeHandler As Action(Of Action(Of TEventArgs)) _
) As IObservable(Of TEventArgs)
'Usage
Dim addHandler As Action(Of Action(Of TEventArgs))
Dim removeHandler As Action(Of Action(Of TEventArgs))
Dim returnValue As IObservable(Of TEventArgs)
returnValue = Observable.FromEvent(addHandler, _
removeHandler)
public static IObservable<TEventArgs> FromEvent<TEventArgs>(
Action<Action<TEventArgs>> addHandler,
Action<Action<TEventArgs>> removeHandler
)
public:
generic<typename TEventArgs>
static IObservable<TEventArgs>^ FromEvent(
Action<Action<TEventArgs>^>^ addHandler,
Action<Action<TEventArgs>^>^ removeHandler
)
static member FromEvent :
addHandler:Action<Action<'TEventArgs>> *
removeHandler:Action<Action<'TEventArgs>> -> IObservable<'TEventArgs>
JScript does not support generic types and methods.
類型參數
- TEventArgs
事件的類型。
參數
- addHandler
類型:System.Action Action<< TEventArgs>>
將指定事件處理常式附加至基礎 .NET 事件的動作。
- removeHandler
類型:System.Action Action<< TEventArgs>>
從基礎 .NET 事件中斷連結指定事件處理常式的動作。
傳回值
類型:System.IObservable< TEventArgs>
可觀察序列,其中包含基礎 .NET 事件調用的資料表示。