C#

public class YourClass
{
    public event EventHandler<YourEventArgs> YourEvent;

    private int yourProperty;

    public int YourProperty
    {
        get { return yourProperty; }
        set
        {
            if (yourProperty != value)
            {
                yourProperty = value;
                OnYourEvent(new YourEventArgs(yourProperty));
            }
        }
    }

    protected virtual void OnYourEvent(YourEventArgs e)
    {
        EventHandler<YourEventArgs> eh = YourEvent;
        if (eh != null)
            eh(this, e);
    }
}

public class YourEventArgs : EventArgs
{
    private int yourProperty;

    public YourEventArgs(int parameter)
    {
        this.yourProperty = parameter;
    }

    public int YourProperty
    {
        get { return yourProperty; }
    }
}

public class Consumer
{
    private YourClass yourClass;

    public Consumer()
    {
        yourClass = new YourClass();
        yourClass.YourEvent += new EventHandler<YourEventArgs>(yourClass_YourEvent);
        yourClass.YourProperty++;
    }

    private void yourClass_YourEvent(object sender, YourEventArgs e)
    {
        Console.WriteLine(e.YourProperty);
    }
}

OriginalGriff wrote:

Does that make sense?

Razanust wrote:

checked
{
int i = square(1000000);
}

I think that wasn't meant for me; maybe it is your reply to Abhinav S?

Luc Pattyn wrote:

then in your code skip the days that you don't want

baranils wrote:

to get some rapport

Well that's a whole other situation than what you described in the original post.

My need is to schedulle to run a C# application once a day for some days of the week
And I provide an UI to set those days