IEventPatternSource<TEventArgs>。OnNext 事件

引发 Next 事件，向数据流中的下一个元素发出信号。

Namespace：System.Reactive
装配： System.Reactive.dll) 中的 System.Reactive (

语法

'Declaration
Event OnNext As EventHandler(Of TEventArgs)

'Usage
Dim instance As IEventPatternSource
Dim handler As EventHandler(Of TEventArgs)

AddHandler instance.OnNext, handler

event EventHandler<TEventArgs> OnNext

 event EventHandler<TEventArgs>^ OnNext {
    void add (EventHandler<TEventArgs>^ value);
    void remove (EventHandler<TEventArgs>^ value);
}

abstract OnNext : IEvent<EventHandler<'TEventArgs>,
    'TEventArgs>

JScript supports the use of events, but not the declaration of new ones.