Event Handler

AlexB47

A question ... I have 2 classes .. in a class1 (form) I call a function, situated in class2, for draw an image. In the middle of this function, i want send an event to class1 (for invalidate a rect etc) ... can you help me, with an example, to implement an event handler? thanks a lot.

Alex

DaveyM69

public class Class1
{
private Class2 class2;
public Class1()
{
class2 = new Class2();
class2.Class2Event += new EventHandler(class2_Class2Event);
class2.Class2Function();
}

void class2\_Class2Event(object sender, EventArgs e)
{
    // Respond to event here
}

}
public class Class2
{
public event EventHandler Class2Event;

public void Class2Function()
{
    OnClass2Event(EventArgs.Empty);
}

protected virtual void OnClass2Event(EventArgs e)
{
    EventHandler eh = Class2Event;
    if (eh != null)
        eh(this, e);
}

}

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Why are you using VB6? Do you hate yourself? (Christian Graus)

AlexB47

thanks a lot! :)

Alex