C#

CodingYoshi wrote:

Any ideas why the event is now getting wired?

using System;
namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            SizeRun run = new SizeRun();
            run.Validated+= new ValidityChanged(SizeRun_Validated);
            run.TestEvent();
            Console.ReadKey();
        }
        static void SizeRun_Validated(object sender, EventArgs e)
        {
            Console.WriteLine("Validated Event Fired!");
        }
    }
    public delegate void ValidityChanged(object sender, EventArgs e);
    public class SizeRun
    {
        public void TestEvent()
        {
            OnValidated(EventArgs.Empty);
        }
        public event ValidityChanged Validated;
        public void OnValidated(EventArgs e)
        {
            RaiseEvent(Validated, e);
        }
        protected void RaiseEvent(ValidityChanged handler, EventArgs e)
        {
            if (handler != null)
            {
                handler(this, EventArgs.Empty);
            }
        }
    }
}

CodingYoshi wrote:

Dim run as SizeRun = new SizeRun()
AddHandler run.Validated, AddressOf SizeRun_Validated

led mike wrote:

The code you posted does not show the scope of run

led mike wrote:

nor does it show the OnValidated event being fired

CodingYoshi wrote:

The scope of SizeRun is public else it will give me compilation errors.

CodingYoshi wrote:

The method RaiseEvent() fires the event.

CodingYoshi wrote:

public void OnValidated(EventArgs e)
{
RaiseEvent(Validated, e);
}

c2423 wrote:

Are indexers common knowledge

c2423 wrote:

(and I have been living under a rock until today)

c2423 wrote:

Thanks for your input!

c2423 wrote:

(and I have been living under a rock until today)

c2423 wrote:

However, my question was more along the lines of "do people generally know of their existance?"

Greeeg wrote:

I think most people use them intuitively

string x = "hello world";
char y = x[0];

this[int indexno]
{
  get { return something; }
}

c2423 wrote:

What I wanted to know was are people familiar with how to add this functionality to a class, rather then can people use a class which already has this functionality.