Csharp/C Sharp/Development Class/EventArgs

Subclass EventArgs

 

using System;

[Serializable]
public sealed class MailReceivedEventArgs : EventArgs {
    private readonly string from;
    private readonly string subject;
    public MailReceivedEventArgs(string from, string subject) {
        this.from = from;
        this.subject = subject;
    }
    public string From { get { return from; } }
    public string Subject { get { return subject; } }
}
public class MainClass {
    public static void Main() {
        MailReceivedEventArgs args = new MailReceivedEventArgs("D", "Y");
        Console.WriteLine("From: {0}, Subject: {1}", args.From, args.Subject);
    }
}