Events 1

[seanbo]

i know how to make use of events. i use events like 'paint' and 'onClick' all the time, as you could imagine. but how do i create my own? i want to trigger an event when ever the renderer i'm writing has completed another object.

 

[aaronino]

I'm a bit of an inexperienced programmer myself, so I'm slightly cautious about making a suggestion, but I thought I might as well try to help...

If the renderer you're working with is a user control then making your own custom events isn't too complicated. Add a property to the form that looks like this.

public event EventHandler YourEventName;

Whenever you want that event to occur, the line

YourEventName(this, new EventArgs());

will raise the event. One more helpful tidbit is that I usually structure a raised event like so

if (YourEventName != null)
YourEventName(this, new EventArgs());

The reason I check for null is if I raise the event while the control is loading an error occurs.

I hope all of that helps.

-Aaron