接口中的通用事件 [英] Generic Event in Interface

问题描述

public interface Whatever     
    {
     
        event EventHandler<okwhatevereventargs> OnOkWhatever;
     
    }
     
    public class OkWhateverEventArgs: EventArgs     
    {
     
        public string OkId {get; set;}
         
        public string Whatever {get; set;}
     
    } 

我上面的接口有事件，而不是有描述此事件的类，如何在我的主程序的方法中使用它来使用它

谢谢

I have above interface that has event, than there is class that describes this event, how do use this in method in my main program to use it

Thanks

推荐答案

需要为事件定义委托:

Need to define a delegate for the Event:

public delegate void WhateverEventDelegate(object sender, OkWhateverEventArgs args);

public interface IWhatever
{
    event WhateverEventDelegate OnOkWhatever;
}

public class OkWhateverEventArgs : EventArgs
{
    public string OkId { get; set; }
    public string Whatever { get; set; }
}

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