在 eventArgs 中发送两个字符串的语法 [英] Syntax to send two strings in eventArgs

问题描述

在下面的代码中，我需要知道在引发事件时传递两个字符串的语法.

In the following code I need to know the syntax of passing two strings when the event is raised.

 [PublishEvent("Click")]
 public event EventHandler<EventArgs<string>> MyEvent;

谢谢，撒克逊人.

推荐答案

最简洁的方法是创建自己的类，该类派生自 EventArgs:

The cleanest way is to create your own class that derives from EventArgs:

    public class MyEventArgs : EventArgs
    {
        private readonly string _myFirstString;
        private readonly string _mySecondString;

        public MyEventArgs(string myFirstString, string mySecondString)
        {
            _myFirstString = myFirstString;
            _mySecondString = mySecondString;
        }

        public string MyFirstString
        {
            get { return _myFirstString; }
        }

        public string MySecondString
        {
            get { return _mySecondString; }
        }
    }

并像这样使用它:

public event EventHandler<MyEventArgs> MyEvent;

要引发事件，您可以执行以下操作:

To raise the event, you can do something like this:

    protected virtual void OnMyEvent(string myFirstString, string mySecondString)
    {
        EventHandler<MyEventArgs> handler = MyEvent;
        if (handler != null)
            handler(this, new MyEventArgs(myFirstString, mySecondString));
    }

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