C# 被动扩展：包装自定义委托事件

如何使用Observable.FromEvent在Rx中包装这些自定义委托

public delegate void EmptyDelegate();
public delegate void CustomDelegate( Stream stream, Dictionary<int, object> values );

public委托void EmptyDelegate（）；
公共委托void CustomDelegate（流、字典值）；

EmptyDelegate 这是一个无参数委托，但流需要一个类型-Rx defines

Unit

，用于表示我们只对事件发生感兴趣的事件类型-即，没有有意义的负载

假设您有此委托的实例，请声明为：

public EmptyDelegate emptyDelegate;

然后你可以做：

var xs = Observable.FromEvent<EmptyDelegate, Unit>(
    h => () => h(Unit.Default),
    h => emptyDelegate += h,
    h => emptyDelegate -= h);

xs.Subscribe(_ => Console.WriteLine("Invoked"));

emptyDelegate(); // Invoke it

var xs = Observable.FromEvent<CustomDelegate, CustomEvent>(
    h => (s, v) => h(new CustomEvent { Stream = s, Values = v }),
    h => customDelegate += h,
    h => customDelegate -= h);

xs.Subscribe(_ => Console.WriteLine("Invoked"));

// some data to invoke the delegate with
Stream stream = null;
Dictionary<int,object> values = null;

// and invoke it
customDelegate(stream,values);

你可以做：

var xs = Observable.FromEvent<EmptyDelegate, Unit>(
    h => () => h(Unit.Default),
    h => emptyDelegate += h,
    h => emptyDelegate -= h);

xs.Subscribe(_ => Console.WriteLine("Invoked"));

emptyDelegate(); // Invoke it

var xs = Observable.FromEvent<CustomDelegate, CustomEvent>(
    h => (s, v) => h(new CustomEvent { Stream = s, Values = v }),
    h => customDelegate += h,
    h => customDelegate -= h);

xs.Subscribe(_ => Console.WriteLine("Invoked"));

// some data to invoke the delegate with
Stream stream = null;
Dictionary<int,object> values = null;

// and invoke it
customDelegate(stream,values);

var xs=Observable.FromEvent(
h=>（s，v）=>h（新CustomEvent{Stream=s，Values=v}），
h=>customDelegate+=h，
h=>customDelegate-=h）；
订阅（=>Console.WriteLine（“已调用”）；
//要调用委托的某些数据
Stream=null；
字典值=null；
//并调用它
customDelegate（流、值）；

有关

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