通过

ObservableTest.FromEvent_VarianceCheck.E2 事件

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

语法

'Declaration
Public Event E2 As EventHandler(Of CancelEventArgs)

'Usage
Dim instance As ObservableTest..::..FromEvent_VarianceCheck
Dim handler As EventHandler(Of CancelEventArgs)

AddHandler instance.E2, handler

public event EventHandler<CancelEventArgs> E2

public:
 event EventHandler<CancelEventArgs^>^ E2 {
    void add (EventHandler<CancelEventArgs^>^ value);
    void remove (EventHandler<CancelEventArgs^>^ value);
}

member E2 : IEvent<EventHandler<CancelEventArgs>,
    CancelEventArgs>

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

另请参阅

参考

ObservableTest.FromEvent_VarianceCheck 类

ReactiveTests.Tests 命名空间