using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ComEvets
{

    public class SampleEventArgs
    {
        public SampleEventArgs(string s) { Text = s; }
        public String Text {get; private set;} // readonly
    }


    public class ComEvents
    {
        // Declare the delegate (if using non-generic pattern).
        public delegate void SampleEventHandler(object sender, SampleEventArgs e);

        // Declare the event.
        public event SampleEventHandler SampleEvent;

        // Wrap the event in a protected virtual method
        // to enable derived classes to raise the event.
        protected virtual void RaiseSampleEvent()
        {
            // Raise the event by using the () operator.
            if (SampleEvent != null)
                SampleEvent(this, new SampleEventArgs("Hello"));
        }
    }

}